ADC

Explore 288 ADC vintage audio models — specs, production history, reviews, and market values in the VTA archive.

If you're into American hi-fi from the transistor boom, you can't skip ADC. Their significance isn't about being the most exotic, but about delivering genuinely clever engineering that made good sound more accessible. In a landscape of esoteric, wallet-emptying brands, ADC was the savvy engineer's choice, offering performance that punched way above its price point and forced the big names to take notice.

They're legendary for two lines. First, their moving magnet cartridges, especially the XLM series. These were famously low-mass, high-compliance trackers that danced in grooves others struggled with, becoming a benchmark for the era. Then came the Sound Shaper equalizers. These weren't just boom-and-tizz boxes; they were serious, quiet, integrated components that brought studio-style tone control to the living room and defined the look of '70s racks.

For collectors, ADC is a treasure trove of undervalued gems. Later cartridges and some integrated units were rebadged OEM fare, so focus on the golden era: the original XLM cartridges (mind their fragile stylus assemblies) and the early, metal-faced Sound Shapers. Their build quality and innovative spirit from that period are undeniable, offering a massive slice of performance-per-dollar history that still delights on a vintage turntable.

Models

Equalizers

Sound Shaper III Paragraphic — A late 1970s paragraphic equalizer offering 12 selectable frequency bands per channel with inductor or IC circuitry options for precise room correction.

Other Models

ADC — Vintage Audio Equipment — Explore 288 ADC vintage audio models — specs, production history, reviews, and market values in the VTA archive.
10 — The ADC-10 is a high-compliance induced magnet phono cartridge from the 1960s–70s, prized for its low tracking force and surgical clarity—when paired with the right tonearm.
10E Mk.IV — The ADC 10E Mk.IV (1972) is a low-mass, induced magnet cartridge prized for its 0.7g tracking and transparent sound—if your tonearm can handle it.
25 — The Epiroc ADC 25 Auger Drill Compact is a robust, high-torque excavator attachment designed for efficient drilling in construction, agriculture, and municipal applications.
26 — The ADC 26 is a rare 1970s induced-magnet cartridge that delivers uncanny soundstage depth and musical realism when paired with the right tonearm.
27 — The ADC 27 is a 1960s moving magnet phono cartridge with a 0.3 x 0.7 mil elliptical stylus, 40cu compliance, and 6.25 g weight, praised for its precise tracking and neutral sound.
30 — The ADC QLM 30 was a no-frills moving magnet cartridge that brought warm, forgiving sound to 1970s department store turntables.
30 II — The ADC QLM 30 MkIII is a heavy-tracking moving magnet cartridge built for budget changers. Specs, sound, and stylus upgrade options.
30 III — The ADC QLM 30 MkIII cartridge delivers 3.5 mV output with a 0.7 mil spherical stylus—built for durability in budget changers. Specs, value, and replacement tips.
30 MK III — The ADC QLM 30 MK III (1970s?) is a rugged moving magnet cartridge built for budget changers. Specs, tracking force, stylus tips, and real market prices.
30 Mk. II — The ADC QLM 30 Mk. II is a 5.75g moving magnet cartridge with 0.018mm spherical stylus, 4.3mV output, and 20Hz–20kHz response. Priced at 78 DM new, now rare but serviceable with available styli.
30 MkII — The ADC QLM 30 MkII was the unsung workhorse cartridge in countless vintage turntables—replaceable, reliable, and just good enough to keep the music playing.
303A — The ADC 303A delivers deep, tight bass from a sealed cabinet, powered by a 10-inch alnico woofer — a durable, under-the-radar classic from the 1960s.
303AX — The ADC 303AX brought acoustic suspension performance to the masses in 1970, earning a rare Consumer Reports check rating and lasting decades on vintage audio shelves.
32 — The ADC QLM 32 MkIII (1978–1984) brought warm, smooth elliptical tracking to budget turntables, powering countless European hi-fi systems.
32 II — The ADC QLM 32 MkIII is a late-'70s moving magnet cartridge known for warm, smooth sound and compatibility with higher-mass tonearms.
32 Mk. II — The ADC QLM 32 Mk. II (1978–1984) weighs just 5.75g and uses a moving iron design with elliptical stylus. Specs, pricing, and compatibility details.
33 — The ADC QLM-33 MKIII phono cartridge delivers detailed, harmonically rich sound via its special elliptical diamond stylus — still serviceable with modern replacements.
33 MkIII — The ADC QLM 33 MkIII is a mid-tier vintage phono cartridge that delivers elliptical clarity at a budget price, ideal for OEM turntable upgrades.
34 — The ADC QLM 34 MkIII (1978–1984) is a moving magnet phono cartridge known for warm vintage sound, elliptical nude stylus, and Omni-Pivot tracking.
34 III — The ADC QLM 34 MkIII (1978–1984) is a warm-sounding moving magnet cartridge with a 0.3x0.7 mil elliptical stylus. Specs, history, and current replacement pricing.
34 Mk. III — The ADC QLM 34 Mk. III (1978–1984) is a German-made moving iron phono cartridge with elliptical stylus and 5.75g weight. Specs, pricing, and replacement info.
36 II — The ADC QLM 36 II is a rare mid-tier MM cartridge with Induced Magnet design and 350 mH inductance. Specs, fakes to avoid, and real market prices.
36 Mk III — The ADC QLM 36 Mk III Improved phono cartridge delivers XLM-level engineering at a fraction of the price — but beware fake styli. Specs, warnings, and real market prices.
36 Mk. II — The ADC QLM 36 Mk. II (1975–1978) is a precise German moving iron phono cartridge with 5.75g weight and elliptical stylus. Specs, history, and collector value.
391 LM — The ADC 391 LM appears in model lists but has no confirmed specs, price, or production date. Is it a real cartridge?
660 — The ADC 660 stethoscope (current) is a lightweight, diaphragm-only nurse's scope with 50% enhanced acoustics. Specs, pricing, and real-world use.
660E — The ADC 660E is a rare 1960s moving magnet phono cartridge with an elliptical diamond stylus and 15° tracking angle. Original price: £13 18 6 (A).
670 — The ADC 670 Proscope is a 3 oz. lightweight, latex-free dual-head stethoscope with a combination chestpiece and 50% enhanced acoustic response.
675 — The ADC 675 Pediatric Stethoscope weighs 2.6 oz and features a 1.4-inch diaphragm, 1-inch bell, and gasket-sealed chestpiece. Designed for clinical durability and pediatric use.
676 — The ADC 676 is a modern infant stethoscope — not vintage audio. Find specs, pricing, and why this model isn’t the gear you expected.
770 — The ADC 770 phono cartridge replaced the Point 4/E as ADC's flagship. Grain-oriented diamond stylus, $50–$89 on today's market. Specs? Unknown.
809 — The ADC 809N is a black enamel aneroid gauge for pocket sphygmomanometers — not vintage audio, but built to last with a 10-year warranty. Specs, pricing, and compatibility.
Accutrac — The ADC Accutrac 4000 (1976) was a direct-drive turntable with infrared remote and electro-optical track sensing—the thinking turntable of the 1970s.
Accutrac 4000 — The ADC Accutrac 4000 was a 1970s marvel: a direct-drive turntable with infrared track selection, programmable memory, and a remote that felt like sci-fi.
Accutrac 6 — The ADC Accutrac +6 was a 1970s marvel: a six-record changer with programmable track selection and infrared remote control, blending automation with near-audiophile sound.
Allround K-8 — The ADC Allround K-8 is a replacement stylus for the ADC K8E cartridge, known for its nude elliptical diamond and airy high-end response.
ALT-1 — The ADC ALT-1 is a low-mass, detachable-headshell tonearm from the early '80s that delivers LMF-series precision at a fraction of the cost—ideal for high-compliance cartridges.
AR-303a — The ADC AR-303a delivers deep, clean acoustic suspension bass in a refined 1995 flagship—warm, honest, and demanding of careful setup.
Astrion — The ADC Astrion (1981–1984) is a hand-built IM cartridge with a sapphire cantilever and hyperelliptical stylus, prized for its neutrality and rarity.
CFX-1 — The ADC CFX-1 stylus features a special elliptical diamond tip (.0003 x .0007-inch) on an aluminum cantilever. Still available for $36.95 — does it deliver natural vinyl playback?
CFX-2 — The ADC CFX-2 cartridge features a special elliptical diamond stylus (.0003 x .0007-inch) and aluminum cantilever. Sound quality praised for detail and vocal clarity. Specs & pricing.
Digital Series — ADC Digital Series II, III, IV cartridges—high-compliance MM designs built for the era of digitally mastered LPs, with upgradeable styli and a cult following among analog purists.
Digital Series IV — The ADC Digital Series IV RS IV stylus delivers precision audio with a nude micro-ellipse diamond tip, 1.2g tracking, and 15Hz-25kHz response. Discontinued but sought after.
G-U — The ADC G-U stereo phono cartridge delivers 6.1 mV output and ultra-fine 0.0003-inch x 0.0007-inch stylus tracking. Specs, value, and replacement info.
I — The ADC Integra XLM I is a vintage integrated phono cartridge and carbon fiber headshell from the 1970s–80s, praised for its clean, revealing sound and precise tracking.
II Improved — The ADC XLM II Improved uses a rare induced magnet design with a low-mass cantilever and Diasa stylus. Specs, setup tips, and real market prices.
III PRO — The ADC XLM MK III (1978–1984) is a high-compliance moving magnet cartridge known for low mass, precision tracking, and nuanced sound—beloved by analog enthusiasts.
Improved — The ADC XLM Improved MKII (1980) was a high-compliance MM cartridge rivaling the Shure V15. Specs, sound, and current market prices.
IMPROVED MKII — The ADC XLM IMPROVED MKII is a high-performance replacement stylus for vintage ADC cartridges, featuring a nude elliptical diamond tip and precise tracking specs.
Integra — The ADC Integra XLM II (1981–1984) combines a carbon fiber headshell with the XLM II cartridge for ultra-low mass and unmatched tracking accuracy. Specs, pricing, and collectibility.
Integra ST XLM II — The ADC Integra ST XLM II pairs a carbon fiber headshell with a precision cartridge for near-zero tracking error. Specs, setup tips, and collector value.
Integra XLM I — The ADC Integra XLM I is a unified carbon fiber phono cartridge and headshell, reducing mass by up to 50% for precision tracking.
Integra XLM II — The ADC Integra XLM II is a vintage high-end phono cartridge with integrated carbon fiber headshell, known for its precision, adjustability, and reference-grade sound.
Integra XLM III — The ADC Integra XLM III is a high-compliance MM cartridge in a precision integrated headshell, revered for its 3D soundstage and low-mass tracking.
INTEGRA XLMII — The ADC INTEGRA XLMII is a precision integrated cartridge and carbon fiber headshell combo with adjustable alignment and a nude elliptical stylus.
K — The ADC K8 (1973) is a reliable moving iron cartridge built for vintage changers. Specs, tracking force, and real owner reviews.
K 3 E — The ADC K3 E exists only in parts listings—no specs, no history, just a name on a stylus box.
K-8E — The ADC K-8E phono cartridge delivers 5.8 mV output and elliptical tracing for detailed vinyl playback. Specs, setup, and replacement stylus info.
K5E — The ADC K5E is a lightweight moving iron phono cartridge made in the USA, with elliptical stylus and 5.75 g weight. Specs, compatibility, and current stylus pricing.
K6E — The ADC K6E phono cartridge (USA-made) uses a conical diamond stylus (0.3 x 0.7 mil) and 2.5g tracking. Specs, history, and collector pricing.
K7E — The ADC K7E is a USA-made moving iron phono cartridge with elliptical stylus, 5 mV output, and 2.0–3.0g tracking. Specs, value, and replacement info.
K8 — The ADC K8 was a budget MM cartridge made for BSR record changers in the 1980s—reliable, replaceable, and still in demand for restorations.
K8C — The ADC K8C is a budget-friendly, premounted phono cartridge with smooth sound and low tracking force—ideal for vintage turntable users who value ease and warmth over precision.
K8E — The ADC K8E phono cartridge delivers balanced, detailed sound via its elliptical stylus — a solid mid-tier vintage performer with spotty fitment reports.
LM — The ADC LM isn't one thing—it's a family of low-mass tonearms (LMF-1/LMF-2) and high-compliance cartridges (LM-100 MKIII). Specs, sound, and collector reality.
LM-100 MKIII — The ADC LM-100 MKIII cartridge features a special elliptical diamond stylus and aluminum cantilever, praised for detailed, full-bodied sound. Specs, value, and rarity.
LMA-1 — The ADC LMA-1 was the factory cartridge for the Accutrac 4000 turntable—a smooth, reliable MM design prized for its musicality and ease of use.
LMA-3 — The ADC LMA-3 was the optical-sensing cartridge at the heart of the futuristic Accutrac 4000 turntable, blending analog audio with infrared tracking.
LMF — The ADC LMF-1 and LMF-2 carbon-fiber tonearms deliver low-mass precision and neutral sound at a fraction of the cost of vintage rivals like SME or Grace.
LMF-1 — The ADC LMF-1 is a low-mass carbon fiber tonearm from 1978–1984, prized for its rigidity, neutrality, and exceptional value among vintage analog enthusiasts.
LMF-2 — The ADC LMF-2 is a low-mass carbon fiber tonearm from the 1970s that delivers neutral, detailed sound and exceptional value among vintage arms.
LX-I — The ADC LX-I cartridge lives on through its $69.35 replacement stylus — a nude Schwarz elliptical diamond keeps this forgotten analog gem playing.
LX-II — The ADC LX-II (late 70s?) is a no-frills black phono cartridge with a precision elliptical stylus. Specs, tracking force notes, and current stylus pricing.
LX-III — The ADC LX-III cartridge lives on through its $73 replacement stylus—a rare win for owners of this 40-year-old phono relic. Specs, fit, and real user experience.
MK I — The ADC XLM MK I is a rare, discontinued moving iron cartridge once rivaling the Shure V15. Collectors seek it despite suspension issues and scarce styli.
MK II — The ADC XLM MK II (1975–1978) is a revered MM cartridge known for its musicality, low tip mass, and famous signature sound.
MK II Improved — The ADC XLM MK II Improved (1975–1978) is a high-compliance MM cartridge with induced magnet design, known for high inductance and audible stylus resonance.
MK III — The ADC XLM MK III (1978–1984) delivers 5.5mV output with a nude elliptical stylus. Smooth, detailed sound & collectibility insights.
MK X — The ADC MK X remains a mystery — no specs or history found. Replacement styli exist, hinting at its past production.
MKII — The ADC XLM MKII is a high-compliance moving magnet cartridge from the 1970s that delivers startling clarity and musicality when properly set up.
MkII Improved — The ADC XLM MkII Improved is a high-compliance moving magnet cartridge from the 1970s that delivers neutral, three-dimensional sound with exceptional detail and low tracking force.
mkIII Improved — The ADC XLM mkIII Improved delivers 6.05mV output and a warm, spacious sound—rare today, but still outperforms modern cartridges under £500. Specs, reviews, and real market prices.
P — The ADC P — a rumored phono cartridge with no specs, no history, and no proof it existed. Is it real or a vintage audio myth?
P30 — The ADC P30 (1975–1978) is a Japanese-made MM phono cartridge with 5.75g weight, 5.5mV output, and conical 0.7 mil stylus, designed for record changers.
P32 — The ADC P32 (1975–1978) is a moving iron phono cartridge with 5.5 mV output and elliptical stylus. Specs, value, and replacement stylus info.
P36 — The ADC P36 is a basic vintage phono cartridge from a legendary brand — functional, serviceable, and still usable today. Original styli available.
PSX-10 — The ADC PSX-10 P-mount cartridge delivers high-compliance tracking and warm clarity, a cult favorite for vintage turntable upgrades.
PSX-20 — The ADC PSX-20 brought high compliance and dual-mount flexibility to mid-tier turntables, but its legacy is fading with the scarcity of its red RPSX-20 stylus.
PSX-30 — The ADC PSX-30 brought high-end Induced Magnet performance to p-mount turntables, offering exceptional detail and tracking in a plug-and-play design.
PSX-40 — The ADC PSX-40 is a high-compliance moving magnet cartridge from the 1970s that delivers smooth, natural sound with excellent groove tracking and low record wear.
Q30 — The ADC Q30 is a vintage MM phono cartridge with 30 µm/mN compliance and a conical stylus—rare, affordable, and still viable for analog enthusiasts. Specs, pricing, and user insights.
Q36 — The ADC Q36 (1972–1973) is a reliable MM cartridge with elliptical diamond stylus, pale blue guard, and stable tracking. Specs, repair tips, and current pricing.
QLM — The ADC QLM was the no-nonsense, budget-friendly moving magnet cartridge that powered countless vintage turntables—durable, replaceable, and still capable of solid sound today.
QLM-30 MKIII — The ADC QLM-30 MKIII was a no-frills, serviceable moving magnet cartridge built for budget turntables—durable, replaceable, and surprisingly competent for its class.
QLM-32 MK-III — The ADC QLM-32 MK-III is a vintage moving magnet cartridge with limited stylus availability. Check specs, replacement options, and collector advice.
QLM-32 MKIII — The ADC QLM-32 MKIII is a reliable, mid-tier moving magnet cartridge from the 1970s–80s, valued for its durability and plug-and-play performance on vintage turntables.
QLM-34 MKIII — The ADC QLM-34 MKIII is a mid-tier 1970s moving magnet cartridge known for its balanced sound, low mass, and surprising detail—still a smart buy for vintage turntable enthusiasts.
QLM-36 — The ADC QLM-36 MKIII uses a special elliptical diamond stylus (.0003 x .0007-inch) on a shared body with XLM/ZLM models. Specs, pricing, and collectibility.
QLM-36 MKIII — The ADC QLM-36 MKIII replacement stylus features a polished elliptical diamond (.0003 x .0007-inch) on an aluminum cantilever—still available for $36.95.
QLM-series — The ADC QLM-series cartridges offer detailed, transparent sound with replaceable styli — from conical to Diasa elliptical. Prices, specs, and user insights.
QLM30 — The ADC QLM30 MKIII (1976–1984) was a workhorse MM phono cartridge for record changers. 6g, 0.7mil conical stylus, 3–5g tracking. Still supported with RSQ30 replacements.
QLM30 Mk III — The ADC QLM30 Mk III delivers EXC SOUNDING playback with a 3 x 0.7 mil elliptical stylus and standard-mount fit. Specs, pricing, and replacement tips.
QLM30 MkIII — The ADC QLM30 MkIII is a vintage moving magnet cartridge with a 0.3 x 0.7 mil elliptical tip and 3–5g tracking. Specs, pricing, and user insights.
QLM30/III — The ADC QLM30/III is a moving magnet phono cartridge with a 3.0g tracking force and 0.018mm spherical diamond stylus. Specs, pricing, and replacement info.
QLM30/III Mk III — The ADC QLM30/III Mk III is a no-frills moving magnet cartridge with diamond stylus and 3-5g tracking. Budget-friendly but fragile—owners report short lifespan and inconsistent sound.
QLM30mkII — The ADC QLM30mkII is a replacement stylus for vintage phono cartridges, used in ADC, Realistic, and Schneider turntables. Tracking force: 3-5g. Current prices and compatibility.
QLM30mkIII — The ADC QLM30mkIII was built for record changers with heavy arms, using a 0.7mil conical stylus. Specs, value, and why it still works.
QLM31 — The ADC QLM31 Mk III was a budget phono cartridge for turntables like BSR and Garrard. Where does it fit in the ADC lineup? What do collectors pay?
QLM32 — The ADC QLM-32 MKIII (late 1970s) was one of the most popular vintage cartridges—warm, reliable, and built for changers. Specs, value, and real owner insights.
QLM32 MK3 — The ADC QLM32 MK3 cartridge delivers 5.5mV output and elliptical tracking in a 5.75g body. Specs, history, and current market price.
QLM32 MKIII — The ADC QLM32 MKIII phono cartridge delivers 7.8 mV output and 20-20 kHz response with a 0.4x0.7 mil elliptical stylus. Specs, pricing, and collectibility.
QLM32/III Mk III — The ADC QLM32/III Mk III stylus features a .4 x .7 elliptical diamond tip and 2-3g tracking. Modern Pfanstiehl replacement keeps vintage ADC cartridges spinning.
QLM32mkII — The ADC QLM32mkII turntable cartridge features a conical diamond stylus (.7 mil) and plays 16, 33 & 45 RPM. Specs, compatibility, and collector info.
QLM32mkIII — The ADC QLM32mkIII is a vintage phono cartridge with a .7 mil conical stylus. Still supported with replacements, it's a quiet workhorse from Audio Dynamics Corporation. Specs, pricing, and collector n…
QLM33 — The ADC QLM33 MkIII lacks official specs but still trades in the vintage audio market. Is it elliptical or conical? Prices, compatibility, and contradictions inside.
QLM33 MKII — The ADC QLM33 MKII features a highly polished special elliptical diamond stylus for crisp, detailed vinyl playback. Specs, pricing, and collector notes.
QLM33 MkIII — The ADC QLM33 MkIII features a highly polished special elliptical diamond stylus for superb tracking and harmonic clarity. Specs, pricing, and compatibility.
QLM33mkII — The ADC QLM33mkII lacks specs but not mystique—priced from $6 to $168, with a $45 replacement stylus. What we know (and don't) about this elusive cartridge.
QLM33mkIII — The ADC QLM33mkIII phono cartridge features a diamond stylus and 3-5 gram tracking force. Is it worth replacing or collecting? Specs, pricing, and compatibility.
QLM34 — The ADC QLM34 Mk III replacement stylus (for QLM30 Mk III) features a .3 x .7 elliptical tip and 2.25g tracking. Specs, pricing, and fitment warnings.
QLM34mkIII — The ADC QLM34MKIII phono cartridge delivers solid analog performance with an elliptical stylus (0.3 x 0.7mil) and 1.5–3.0g tracking. Specs, pricing, and collectibility.
QLM36 — The ADC QLM36 MKIII uses a special elliptical diamond stylus for superb groove tracking and detailed sound. Specs, compatibility, and current market prices.
QLM36 MKIII — The ADC QLM36 MKIII features a special elliptical diamond stylus for superior groove tracking and detailed sound. Pricing, specs, and collector insights.
QLM36mkII — The ADC QLM36mkII is a moving iron phono cartridge with no official specs—just used listings, replacement styli, and quiet persistence. What we know (and don't know).
QLM36mkIII — The ADC QLM36mkIII is a rare replacement stylus for vintage ADC cartridges — owners report good fit and sound, but prices range from $30 to $60. Full specs, compatibility, and market data.
QLN-38 — The ADC QLN-38 is a phantom in the archive — a moving magnet cartridge with only a $36.95 stylus price confirmed. What else remains unknown.
QLN-II — The ADC QLN-II phono cartridge delivers 5.5 mV output and a bright, detailed sound. Specs, compatibility notes, and current pricing for collectors.
QLX-3 — The ADC QLX-3 phono cartridge delivers precise groove tracing with a special elliptical diamond stylus, though little else is documented about its history or specs.
R-660 — The ADC R-660 is a vintage stylus with no specs, no history—just a $33.95 replacement part keeping it alive. What we know (and don't know).
R-770 — The ADC R-770 replacement stylus features a 0.7 mil conical tip and yellow body—still available for vintage turntables. Specs, history, and pricing.
R660 — The ADC R660 stylus (1.8g tracking) keeps vintage ADC cartridges playing safely. Specs, compatibility, and current pricing for this essential replacement needle.
RK-8 — The ADC RK-8 replacement stylus features a highly polished elliptical diamond tip for crisp, harmonically rich vinyl playback. Specs, sound quality, and current pricing.
RK3E — The ADC RK3E stylus features a highly polished elliptical diamond tip for fine groove tracing and detailed sound. Specs, equivalents, and market price.
RK5E — The ADC RK5E stylus ($29.95) is a nude elliptical diamond replacement for the ADC K5E cartridge—and a guardian of your vinyl. Specs, compatibility, and buying tips.
RK6E — The ADC RK6E replacement stylus (0.3 x 0.7 mil elliptical) served K-series cartridges—tiny, vital, and risky to buy NOS. Specs, warnings, and value.
RK7E — The ADC RK7E is a 0.3 x 0.7 mil elliptical stylus for vintage ADC cartridges—still available for $33. Specs, compatibility, and market price.
RK8 — The ADC RK8 is a replacement stylus for vintage phono cartridges—still available, surprisingly musical, and a key part of ADC's underrated analog legacy. Specs, pricing, and compatibility.
RK8E — The ADC RK8E stylus (1970s?) delivers 5.8 mV output and elliptical tracking for vintage cartridges. Specs, compatibility, and current pricing.
RLMA-1 — The ADC RLMA-1 elliptical nude diamond stylus brought high-fidelity tracking to mid-tier turntables—but today, it's a rare and critical find for vintage analog restoration.
RLMA-3 — The ADC RLMA-3 elliptical nude diamond stylus delivered high compliance and low tracking force for the LMA-3 cartridge—detail-rich but unforgiving.
RLX-II — The ADC RLX-II stylus ($73) is a special elliptical diamond replacement for the ADC LX-II cartridge. Specs, compatibility, and market details.
RLX-III — The ADC RLX-III stylus ($73) features a special elliptical diamond tip for the rare ADC LX-III cartridge. Specs, compatibility, and real-world performance.
RP 32 — The ADC RP 32 (SD) stylus by Jico keeps the ADC P 32 cartridge alive—diamond-tipped, elliptical, and essential. Specs, price, and availability.
RP30 — The ADC RP30 is a genuine OEM replacement stylus for the P30 cartridge—critical, scarce, and still delivering ruler-flat response. Specs, compatibility, and real pricing.
RP32 — The ADC RP32 is a Jico-made elliptical diamond stylus for vintage MI cartridges. Compatible with RK8, RP30, RQ36, and more. Specs, pricing, and buyer notes.
RQ-3 — The ADC RQ-3 replacement stylus (conical diamond, 7 mil) keeps vintage ADC Q-3/Q-4 cartridges playing true. Specs, value, and where to find NOS.
RQ-4 — The ADC RQ-4 stylus (–) features a conical diamond tip built for longevity and solid sound. Specs, value, and where to find replacements.
RQ-40 — The ADC RQ-40 is a vintage stylus with a polished diamond tip, sold today as replacement part ADC178 for $28.95. What cartridge did it belong to?
RQ30 — The ADC RQ30 elliptical stylus (£44.99) replaces the Q30 cartridge tip with bonded diamond precision. Track hidden groove details—before spares vanish.
RQ36 — The ADC RQ36 Stylus (for Q36 cartridge) features an elliptical bonded diamond tip for precise vinyl tracking. Price, specs, and why spares are essential.
RQLM-32 — The ADC RQLM-32 is a replacement stylus for the QLM-32/Ⅱ cartridge, featuring a Duen needle and 1.0–2.0g tracking force. Specs, compatibility, and market search.
RQLM30 — The ADC RQLM30 stylus (–) features a conical diamond tip for reliable vinyl playback. Specs, compatibility, and current pricing for this vintage replacement needle.
RQLM36 — The ADC RQLM36 stylus features a special elliptical diamond (.0003 x .0007-inch) and aluminum cantilever. Specs, compatibility, and current pricing.
RS/3 (RS III) — The ADC RS/3 (RS III) is a diamond-tipped replacement stylus for the ADC DIGITAL Series III cartridge, compatible with mono and stereo records at 33 or 45rpm.
RSQ-30 — The ADC RSQ-30 replacement stylus delivers elliptical diamond tracking at 2.0g for vintage ADC and NAD cartridges. Specs, compatibility, and current pricing.
RSQ-31 — The ADC RSQ-31 turntable is a forgotten model—only its stylus (RSQ-34, $32.97 CAD) remains. A ghost in the ADC catalog.
RSQ-32 — The ADC RSQ-32 replacement stylus ($69.35) features a highly polished elliptical diamond tip for superior groove tracking and improved sound fidelity. Specs, history, and value.
RSQ-33 — The ADC RSQ-33 replacement stylus features a 0.3 x 0.7 mil elliptical diamond tip and 1.8–2.2g tracking force. Specs, history, and market price.
RSQ-34 — The ADC RSQ-34 replacement stylus delivers finer detail and harmonically complete sound with an elliptical diamond tip. Specs, pricing, and compatibility.
RSQ-36 — The ADC RSQ-36 stylus (discontinued) features a special elliptical diamond tip (.0003 x .0007-inch) and titanium-bonded cantilever. Specs, history, and value.
RSQ30 — The ADC RSQ30 stylus features a titanium-bonded diamond tip and elliptical profile for precise 33/45 RPM playback. Specs, compatibility, and current pricing.
RSQ31 — The ADC RSQ31 cartridge delivers reliable 33/45 RPM playback with a 7 MIL diamond stylus and 2–4 gram tracking. Specs, history, and parts pricing.
RSQ32 — The ADC RSQ32 is a replacement stylus for the QLM-32 MK-III cartridge, featuring a special elliptical diamond tip and aluminum cantilever.
RSQ33 — The ADC RSQ33 stylus (elliptical bonded diamond) tracks 16, 33, 45rpm LPs with 2.5g force. Specs, compatibility, and replacement pricing.
RSQ33 MKII — The ADC RSQ33 MKII replacement stylus (£49.99) fits multiple ADC cartridges and protects records from damage. Specs, compatibility, and buying advice.
RSQ34 — The ADC RSQ34 is a precision elliptical diamond replacement stylus for the QLM 34 MkIII, known for accurate tracking and protecting vintage records.
RSQ36 — The ADC RSQ36 stylus features a .0003 x .0007-inch special elliptical diamond and titanium-bonded cantilever. Made in Japan, priced at $69.95 as new production.
RSV — The ADC RSV stylus (c. ????) claims to mirror the original cutting lathe for ruler-flat response. Genuine OEM tip for VLM MK III. Specs, pricing, compatibility.
RSX — The ADC RSX is a precision elliptical replacement stylus for the XLM-MKIII cartridge, known for accurate tracking and long life.
RSX-5 — The ADC RSX-5 stylus (conical diamond, 0.7 mil) keeps the SX-5 cartridge playing with precision and polish. Specs, compatibility, and current pricing.
RSZ — The ADC RSZ stylus (for ZLM cartridge) features a rare Aliptic semi-Shibata diamond tip. Specs, replacement options, and collector pricing.
RVL — The ADC RVL stylus features a special elliptical diamond tip (.0003 x .0007-inch) for the VLM cartridge—detailed, clear, and harmonically rich. Specs, compatibility, and pricing.
RXL — The ADC RXL is a replacement elliptical diamond stylus for the ADC XLM MK II phono cartridge, known for clarity and precision in vintage vinyl playback.
RXM-II — The ADC RXM-II stylus features a nude special elliptical diamond for exceptional groove tracing and rich analog detail. Specs, sound quality, and current pricing.
RXM-III — The ADC RXM-III stylus features a nude special elliptical diamond tip (.0003 x .0007-inch) for precise groove tracing. Current replacement price: $73.
RZL — The ADC RZL stylus (OBSOLETE) features a Vivid Line Contact tip with 6/75 µm radii for high-resolution vinyl playback. Specs, compatibility, and current pricing.
SA-1 — The ADC SA-1 is a 1980s real-time spectrum analyzer with 120 LEDs, built-in pink noise, and a matched mic — a rare tool for tuning vintage audio systems.
SA-1 Real Time Analyzer — The ADC SA-1 Real Time Analyzer turns sound into a hypnotic LED display, offering vintage room tuning with serious caveats about mic quality and calibration.
series — The ADC XLM series (1970s?) is a legendary MM phono cartridge that rivaled the Shure V15. Specs, sound, and collector pricing for the MK III and variants.
Series IV — The ADC Series IV cartridge delivers precision audio with a Nude Micro Ellipse stylus, Omni-Pivot design, and exceptional channel balance.
SLM-100 — The ADC SLM-100 Audio Dynamics Sound Level Meter helps tune your hi-fi system and room. Specs, repair options, and current market prices.
Sound Shaper — The ADC Sound Shaper series brought pro-level EQ control to living rooms in the 70s and 80s—inductor-based models are still prized for their clarity and build.
Sound Shaper 100SL — The ADC Sound Shaper 100SL combines a 31-band stereo EQ with a hypnotic FL spectrum display—precision audio shaping with vintage flair.
Sound Shaper 110 mk2 — The ADC Sound Shaper SS-110 MKII is a vintage stereo graphic equalizer with illuminated sliders and basic monitoring controls.
Sound Shaper 110 MKII — The ADC Sound Shaper 110 MKII is a 2x12-band stereo graphic equalizer with LED meters; collectible but poorly documented.
Sound Shaper 303 — The ADC Sound Shaper 303 brought real-time room correction to living rooms with its glowing fluorescent display and built-in pink noise—quirky, fragile, but deeply satisfying when it works.
Sound Shaper 315 — The ADC Sound Shaper 315 brought pro-grade room correction to living rooms in the '80s — with real-time analysis, built-in mic, and a dedicated cult following.
Sound Shaper III Paragraphic — A late 1970s paragraphic equalizer offering 12 selectable frequency bands per channel with inductor or IC circuitry options for precise room correction.
Sound Shaper One — The ADC Sound Shaper One is a vintage 5-band inductor-based graphic equalizer known for its warm, musical tone shaping and rugged build.
Sound Shaper One Ten — The ADC Sound Shaper One Ten packs inductors and discrete transistors into a budget 10-band EQ—raw, tweakable, and surprisingly cult-favorite among vintage audio tinkerers.
Sound Shaper One-IC — The ADC Sound Shaper One-IC is a no-frills 10-band graphic EQ from the 1980s that delivers clean tone shaping without noise or coloration.
Sound Shaper SA-1 — The ADC Sound Shaper SA-1 turns sound into light with 120 LEDs, offering vintage audiophiles a rare real-time window into room acoustics and system response.
Sound Shaper SS-1 — The ADC Sound Shaper SS-1 is a no-frills 10-band graphic EQ from the 1970s that delivers surgical tone control with pro-grade build and zero digital fuss.
Sound Shaper SS-10 — The ADC Sound Shaper SS-10 brought real-time spectrum analysis to the living room, letting audiophiles see—and shape—their sound with neon-lit precision.
Sound Shaper SS-100SL — The ADC Sound Shaper SS-100SL pairs a 10+10 band graphic EQ with a responsive fluorescent RTA display—rare vintage gear that’s both useful and hypnotic.
Sound Shaper SS-110 — The ADC Sound Shaper SS-110 is a rugged, discrete-circuit 10-band graphic EQ from the 1970s that delivers honest tone shaping with surprising clarity.
Sound Shaper SS-110 Mark II — The ADC Sound Shaper SS-110 Mark II (1980–1983) is a 10-band stereo graphic equalizer with real-time spectrum analyzer—rare analog precision for room correction.
Sound Shaper SS-115 — The ADC Sound Shaper SS-115 is a 1980s analog graphic equalizer with ±15dB of cut/boost per band, known for its warm signal path and iconic illuminated sliders.
Sound Shaper SS-115X — The ADC Sound Shaper SS-115X is a 10-band analog graphic equalizer from the 1980s, prized for its ±15dB range, illuminated sliders, and discrete circuitry.
Sound Shaper SS-2 — The ADC Sound Shaper SS-2 is a 12-band stereo graphic EQ known for its clean signal path, inductor-based filters, and professional build quality.
Sound Shaper SS-2-IC — The ADC Sound Shaper SS-2-IC (1982–1988) delivers surgical 12-band EQ with exceptional transparency—beloved for accuracy, but watch for aging sliders.
Sound Shaper SS-215 — The ADC Sound Shaper SS-215 is a no-nonsense, transparent 12-band graphic EQ prized for its clean signal path and reliable performance in vintage audio systems.
Sound Shaper SS-215X — The ADC Sound Shaper SS-215X (1980–1989) blends 12-band analog EQ precision with striking 80s industrial design and class-A warmth.
Sound Shaper SS-3 — The ADC Sound Shaper SS-3 is a 12-band analog graphic equalizer from the late '70s that delivers surgical tone control with surprising transparency.
Sound Shaper SS-3-IC — The ADC Sound Shaper SS-3-IC (1983) is a 12-band analog EQ with IC-based circuitry and fluorescent display—precise, rare, and unforgiving if neglected.
Sound Shaper SS-30 — The ADC Sound Shaper SS-30 is a 1980s 10-band graphic EQ with a glowing fluorescent spectrum display—beloved for its tactile control and analog warmth.
Sound Shaper SS-300SL — The ADC Sound Shaper SS-300SL pairs a 10-band passive EQ with a hypnotic LED spectrum display, blending precision and retro charm in a 1980s classic.
Sound Shaper SS-315 — The ADC Sound Shaper SS-315 pairs a 10-band analog EQ with a real-time spectrum analyzer, making it a tactile, visual tool for shaping sound in 1980s high-fidelity systems.
Sound Shaper SS-315X — The ADC Sound Shaper SS-315X pairs a 10-band EQ with a 110-segment fluorescent spectrum analyzer, turning room acoustics into visible light.
Sound Shaper SS-325 — The ADC Sound Shaper SS-325 combines a 12-band EQ, real-time analyzer, and pink noise generator in one vintage unit for precise room tuning.
Sound Shaper SS-325X — The ADC Sound Shaper SS-325X combines a 12-band EQ, real-time analyzer, and calibrated mic for precise room tuning — a rare analog command center from the 1980s.
Sound Shaper SS-33 — The ADC Sound Shaper SS-33 is a 10-band analog EQ from the 1980s with a glowing fluorescent meter and surgical tone control—beloved by tweakers, haunted by failing transformers.
Sound Shaper SS-412X — The ADC Sound Shaper SS-412X pairs a 10-band EQ with a hypnotic 12-band fluorescent spectrum analyzer — a rare, precise tool for taming room acoustics.
Sound Shaper SS-415X — The ADC Sound Shaper SS-415X is a 1980s 12-band analog EQ with real-time spectrum display and memory preset—prized for its hands-on tuning and retro-futuristic glow.
Sound Shaper SS-425X — The ADC Sound Shaper SS-425X (1980–1989) blends analog EQ with mesmerizing LED spectrum displays—a vintage audio icon prized as much for its looks as its sound.
Sound Shaper SS-520 — The ADC Sound Shaper SS-520 combines a 12-band analog EQ with a microprocessor-controlled analyzer and pink noise generator — a bold 1980s attempt at automated room correction.
Sound Shaper SS-525X — The ADC Sound Shaper SS-525X (1986–1991) combined a 12-band EQ, real-time analyzer, and auto-correction with a calibrated mic—rare tech for its time.
Sound Shaper Ten SS-10 — The ADC Sound Shaper Ten SS-10 is a no-nonsense 10-band analog EQ from the 1980s that delivers surgical tone control without sacrificing clarity or dynamics.
Sound Shaper Thirty — The ADC Sound Shaper Thirty (SS-30) pairs a 10-band graphic EQ with a mesmerizing fluorescent spectrum analyzer, making it a diagnostic tool as much as a tone shaper.
Sound Shaper Thirty Three — The ADC Sound Shaper Thirty Three combines a 10-band graphic EQ with a real-time fluorescent spectrum analyzer and built-in pink noise—making room correction tactile and visual.
Sound Shaper Three — The ADC Sound Shaper Three is a 12-band paragraphic equalizer with real-time analyzer, fluorescent display, and pink noise generator—built for sonic precision in the 1980s.
Sound Shaper Twenty — The ADC Sound Shaper Twenty (1979–1985) is a 12-band stereo graphic equalizer prized for its clean signal path, broadcast-grade build, and precise room correction.
Sound Shaper Two — The ADC Sound Shaper Two is a 12-band stereo graphic equalizer prized for its transparency, build quality, and rare mic input for room correction.
Sound Shaper Two IC — The ADC Sound Shaper Two IC is a 12-band vintage EQ prized for its transparency, build quality, and surgical tone shaping without coloration.
Sound Shaper Two MKII — The ADC Sound Shaper Two MKII is a 12-band graphic equalizer prized for its transparency, build quality, and surgical tonal control in vintage hi-fi systems.
Sound Shaper Two MKIII — The ADC Sound Shaper Two MKIII is a 12-band graphic equalizer from the 1980s prized for its transparency, build quality, and surgical tone control.
SRX — The ADC SRX-I is a replacement stylus with no known specs or production dates—still available, barely documented.
SS-1 — The ADC SS-1 is a no-frills, 10-band analog graphic EQ from the 1970s–80s, built for room correction and bass control with a rugged, repairable design.
SS-1 MkII — The ADC SS-1 MkII is a no-nonsense 5-band graphic equalizer from the late '70s, prized for its transparency, build quality, and surgical tone control.
SS-10 — The ADC SS-10 is a no-nonsense, 10-band passive equalizer from the 1980s—built tough, sounds clean, and perfect for precise tone shaping without gimmicks.
SS-100SL — The ADC SS-100SL pairs a 10-band graphic EQ with a real-time FL spectrum analyzer—see your sound as you shape it.
SS-110 — The ADC SS-110 is a 10-band stereo graphic equalizer from the late '70s with independent channel control and passive EQ design, prized for its tactile precision and system-shaping clarity.
SS-110 Mark I — The ADC SS-110 Mark I (1980–1985) is a 10-band stereo graphic equalizer with a built-in spectrum analyzer, prized for its visual drama and analog warmth—when the sliders still work.
SS-110 Mark II — The ADC SS-110 Mark II is a 1970s 10-band graphic equalizer with a hypnotic analog spectrum analyzer—equal parts audio tool and visual spectacle.
SS-115 — The ADC SS-115 is a no-frills 10-band analog EQ from the 1980s, prized for its surgical tone control and robust build—when recapped and cleaned.
SS-115X — The 1986 ADC SS-115X is a 10-band analog graphic equalizer with ±15dB range, LED meters, and pro-grade build—capable, heavy, and ready for restoration.
SS-215 — The ADC SS-215 is a 12-band stereo graphic equalizer from the 1970s–80s, built in the USA with ±15dB control, subsonic filter, and extensive I/O.
SS-215X — The ADC SS-215X is a 12-band stereo graphic equalizer from Audio Dynamics Corporation, built for precision audio shaping with exceptional specs.
SS-300 — The ADC SS-300 brings lab-grade room correction to vintage audio with a 10-band EQ, RTA display, and built-in pink noise—rare, visual, and still effective.
SS-300SL — The ADC SS-300SL combines a 10-band graphic EQ with a real-time analyzer and pink noise calibration—rare analog room correction from 1988.
SS-315 — A 1970s–90s stereo graphic EQ with built-in spectrum analyzer and pink noise — ambitious, distinctive, and a favorite among vintage audio tinkerers.
SS-315X — The ADC SS-315X pairs a 10-band analog EQ with a fluorescent RTA display, offering vintage room correction with cult appeal—and a finicky microphone.
SS-325 — The ADC SS-325 brought professional-grade room analysis to home audio with its glowing fluorescent EQ and built-in pink noise—rare, useful, and hypnotic to watch.
SS-33 — A 1980 ADC SS-33 10-band graphic equalizer with fluorescent display—simple, effective, and still useful for analog room correction.
SS-412X — The ADC SS-412X blends 10-band EQ with a 156-segment fluorescent spectrum display, making it a rare diagnostic tool for vintage audiophiles.
SS-420 — The ADC SS-420 is a no-nonsense 10-band graphic equalizer from the late 1980s—built tough, sounds clean, and perfect for audiophiles who hate flashing lights.
SS-425 — The ADC SS-425 combines a 10-band analog EQ with a real-time spectrum analyzer and pink noise generator—rare tech for a 1980s consumer unit.
SS-425X — The ADC SS-425X is a 1980s analog EQ with real-time spectrum analysis, parametric control, and a cult following among vintage audio enthusiasts.
SS-450X — The ADC SS-450X is a rare late-1980s flagship EQ with a 30-band spectrum analyzer, built-in reverb, and neon display—equal parts audio tool and visual spectacle.
SS-525X — The ADC SS-525X (1980s) brought automated room correction to audiophiles with a microprocessor, 12 motorized sliders, and a calibrated mic—rare and sought after today.
SS-Two — The ADC SS-Two is a 12-band graphic equalizer from the 1970s–80s prized for its transparency, low distortion, and VU meters—ideal for precise tonal correction in vintage hi-fi systems.
SS-Two IC — The ADC SS-Two IC is a 12-band analog graphic equalizer from the 1980s known for clean sound, reliable build, and functional VU meters—still effective in vintage audio chains today.
SS315 — The ADC SS315 is a vintage stereo graphic equalizer with real-time analyzer, prized for its transparency, RTA display, and room-correction utility.
Super XLM — The ADC Super XLM MKII (1976–1978) was a rare 4-channel phono cartridge built for quadraphonic vinyl. Specs, history, and real collector prices.
Super XLM Mk. II — The ADC Super XLM Mk. II (1976–1978) is a rare 4-channel pickup with 15–50,000 Hz response. A forgotten artifact of quadraphonic vinyl.
SX-5 — The ADC SX-5 phono cartridge (unknown year) uses a 0.7 mil conical diamond stylus for 16, 33, and 45 rpm playback. Specs, value, and replacement info.
SX-5E — The ADC SX-5E is a T4P MM cartridge with 1.8–2.2g tracking force and elliptical stylus option. Specs, replacement costs, and market value.
SX5 — The ADC SX5 phono cartridge (conical 0.7 mil diamond) tracks 16/33/45 rpm records with reliability, not flash. Specs, pricing, and collector notes.
TRX-2 — The ADC TRX-2 is a rare, late-80s moving magnet cartridge with a sapphire cantilever, revered for its neutrality and detail—built just before ADC vanished.
VLM — The ADC VLM is a mid-tier moving magnet cartridge from the 1970s–80s that delivers high-end performance with a replaceable elliptical stylus and enduring analog warmth.
VLM MK II — The ADC VLM MK II is a moving iron phono cartridge with 0.3 x 0.7 mil elliptical stylus, designed as second only to the XLM in ADC's lineup.
VLM MK III — The ADC VLM MK III (1978–1984) is a Swiss-made moving iron phono cartridge with nude elliptical stylus, designed as a high-end ADC model just below the XLM.
VLM mkI — The ADC VLM mkI (1977–1978) is a mid-tier moving magnet phono cartridge known for its warm sound and high compliance—now prized but fragile due to aging elastomers.
VLM mkIII — The ADC VLM mkIII is a vintage MM phono cartridge with ongoing stylus support, valued for its smooth, detailed analog playback.
XL-40 — The ADC XL-40 phono cartridge lives on only through its replacement stylus, offering a faint echo of a forgotten analog era.
XLM — The ADC XLM is a high-compliance moving magnet cartridge from the 1970s that delivers reference-level clarity with ultra-low tracking force.
XLM-II — The ADC XLM-II moving magnet cartridge is a cult favorite for its low-mass tracking and high compliance. Specs, stylus pricing, and collector insights.
XLM-MKIII — The ADC XLM-MKIII cartridge delivers legendary low-mass, high-compliance tracking with a special elliptical diamond stylus. Specs, rarity, and collector pricing.
XLM/III — The ADC XLM/III features a nude elliptical stylus and was a benchmark MM cartridge in its era. Specs, collectibility, and market prices for this golden-era ADC gem.
XLX — The ADC XLX was a high-compliance MM cartridge from the 1970s that excelled on low-mass arms, prized for its delicate tracking and organic midrange.
XML — The ADC XLM was a low-mass, high-compliance moving magnet cartridge that delivered exceptional tracking and value in the 1980s–90s.
Z200S — The ADC Z200S is a replacement cartridge stylus with no surviving specs or history—known today only through aftermarket parts listings.
ZLM — The ADC ZLM is a high-compliance moving magnet cartridge from the late '70s, famed for its aliption stylus, low tracking force, and transparent sound.
ZLM III — The ADC ZLM III was a high-end phono cartridge from the 1970s, prized for its Aliptic stylus and Induced Magnet design.