Bose

The most argued-about audio company in history

History

Bose Corporation was founded in 1964 in Framingham, Massachusetts by Dr. Amar Gopal Bose (1929-2013), a professor of electrical engineering at MIT. The company's genesis came from Dr. Bose's personal frustration—after purchasing a high-end audio system in 1956, he was disappointed with its performance and began researching psychoacoustics and speaker design. With angel investor funding including support from his MIT thesis advisor Y. W. Lee, Dr. Bose established the company with a unique philosophy: conduct fundamental research into how humans perceive sound, then build products based on scientific findings rather than conventional wisdom. Bose's first consumer product, the 2201, was introduced in 1966. This unconventional speaker featured 22 transducers arranged in a sphere. While technically impressive, it was the following product that would define the company. In 1968, Bose introduced the 901 Direct/Reflecting speaker system—a revolutionary design that used nine identical drivers (eight rear-facing, one front-facing) to recreate the spatial characteristics of live music. The 901s became one of the best-selling speakers in history and remained in production for over 50 years. Throughout its history, Bose has conducted research for NASA, the U.S. military, and automotive partners. The company's commitment to research—funneling profits back into R&D rather than paying dividends—has resulted in numerous innovations including active noise cancellation, waveguide speaker technology, and advanced automotive audio systems.

Key Facts

Fact	Detail
Founded	1964, Framingham, Massachusetts
Founder	Dr. Amar G. Bose (1929-2013)
Founding Principle	Research-based audio design
First Product	2201 (1966)
Breakthrough	901 Direct/Reflecting (1968)
Current Status	Private company, research-focused

Legendary Products

Bose 901 Direct/Reflecting (1968-2016)

One of the most successful speakers in audio history. The 901 used nine identical drivers firing in different directions to recreate the spatial balance of live music. Required active equalization and specific placement but delivered a unique, enveloping sound.

Bose 301/501 Series (1970s-80s)

More conventional bookshelf and floor-standing speakers that brought Bose's research to a wider audience. The 301s in particular became popular for their wide dispersion and room-filling sound.

Bose Acoustic Wave Music System (1984)

A tabletop system using a patented waveguide to produce full-range sound from a compact enclosure. The Wave radio became one of Bose's most enduring products.

Bose QuietComfort (2000s)

Pioneering active noise-canceling headphones that set the standard for travel and professional use. Bose's research into noise cancellation began with military and aviation applications.

Sound Signature

No speaker brand generates more passionate debate than Bose, and the 901 is ground zero for the argument. Set up properly — on stands, away from the back wall at the prescribed distance, with the active equalizer engaged — the 901 produces a spatial experience unlike any conventional speaker. Eight of the nine drivers fire rearward, bouncing sound off the wall behind them, while only one fires forward at the listener. The result is an enveloping, three-dimensional soundfield that fills the room from edge to edge. Instruments seem to exist in space around you rather than projecting from two boxes.

The tonal character is warm and full-bodied, with a midrange presence that makes vocals and acoustic instruments sound larger than life. Bass response, enhanced by the active equalizer, is surprisingly substantial for the size of the individual drivers. The 901 does sacrifice some of the pinpoint imaging and razor-sharp transient attack that conventional direct-radiating speakers achieve — this is a design that prioritizes the overall experience of being immersed in music over analytical dissection of individual elements. For orchestral music, live recordings, and anything where you want to feel enveloped rather than informed, the 901 is genuinely magical.

The 301 and 501 speakers apply a milder version of this philosophy, using angled drivers and reflective surfaces to widen dispersion while retaining more conventional placement flexibility. These are speakers designed for people who want to enjoy music without obsessing over the perfect listening position.

Collecting Bose

The 901 is the essential Bose collectible, and its long production run (1968-2016) means there are many variants to consider. The early Series I and II models with cloth grilles and the original active equalizer are the most sought-after, typically trading between $400 and $800 for a complete, working set (speakers plus equalizer). Later series (III through VI) refined the driver design and equalization but lack the vintage cachet — they are available for $200 to $500 and represent excellent value for someone who wants the 901 experience without paying collector premiums.

A critical point: a 901 without its matching active equalizer is essentially unusable. The speakers were designed to work exclusively with equalization, and the raw response without it is severely rolled off. Always verify that the equalizer is included, functional, and matched to the correct series. The 2201 — Bose's first product with its 22-driver spherical design — is a genuine rarity that appeals to collectors of audio curiosities, with prices varying wildly based on condition. The 301 series is the approachable entry point, readily available for $75 to $200 and a great way to experience Bose's spatial design philosophy on a budget.

Competitors & Comparisons

Bose vs JBL: Different philosophies; Bose research-based, JBL professional/studio heritage Bose vs Acoustic Research: AR pioneered acoustic suspension; Bose direct/reflecting Bose vs Klipsch: Opposite approaches; Klipsch horn-loaded efficiency, Bose dispersion

Models

Speakers, Audio Research

Bose - Audio Research Pioneer — Founded by MIT professor Amar Bose in 1964. Revolutionary research-based approach to audio, creator of the 901 Direct/Reflecting speaker system.

Amplifiers

1600 (1978) — A high-powered solid-state amplifier from Bose's early professional audio line, known for reliability and clean output in commercial installations.

Speakers

10.2-SERIES-I (1988) — A pioneering active loudspeaker system with integrated electronics and proprietary Acoustimass technology.
10.2-SERIES-II (1988) — A unique active speaker system from Bose, combining powered bass and passive satellite design for balanced, room-filling sound.
101-MUSIC-MONITOR (1970) — A unique, vertically oriented loudspeaker system designed for background music and architectural integration in the early 1970s.
1800-SERIES-II (1979) — A unique active sound system from Bose, combining compact design with proprietary acoustic technology for its era.
201-SERIES III (1981) — A passive in-wall/indoor speaker system from Bose known for spacious sound and unique direct/reflecting design.
201-SERIES IV (1980) — A compact, direct/reflecting bookshelf speaker designed for immersive stereo imaging in small to medium rooms.
201-SERIES-I (1974) — Bose 201-SERIES-I (1974) — Early Direct/Reflecting speaker with 6.5-inch woofer; details scarce but design influential.
201-SERIES-II (1979) — A compact, direct/reflecting speaker system designed for small to mid-sized rooms, known for spacious sound and unique Bose acoustic philosophy.
2201 (1966) — A pioneering but controversial speaker system from Bose's early years, designed for omnidirectional sound using floor and ceiling reflections.
301 Series III (1980) — A classic passive bookshelf speaker known for its unique wall-mount design and spacious soundstage.
301 Series IV (1985) — A classic passive bookshelf speaker from Bose, known for its wall-mounting design and spacious soundstage.
301-SERIES-I (1970) — One of the first mass-market bookshelf speakers from Bose, the 301-SERIES-I introduced consumers to balanced sound and the company's unique acoustic design philosophy.
301-SERIES-II (1977) — Bose 301-SERIES-II (1977) passive bookshelf speaker with Direct/Reflecting® tech, 89dB sensitivity, 8-ohm impedance — a vintage favorite for room-filling sound
4.2-SERIES-I (1984) — Bose 4.2 Series I (1984) satellite speaker system: 2.5-inch full-range drivers, 100Hz-18kHz with bass module, wall-mountable. Full specs and collector info.
401-SERIES-I (1971) — An early Bose speaker system designed for high-fidelity sound using direct/reflecting technology.
401-SERIES-II (1978) — A compact passive bookshelf speaker from Bose's early high-fidelity line, designed for integration with the Bose 901 system as satellite speakers.
501 Series III (1977) — A pioneering passive loudspeaker system from Bose, known for its unique direct/reflecting design and spacious soundstage.
501 Series IV (1987) — A high-efficiency passive loudspeaker system designed for wide, diffuse sound dispersion and ambient listening environments.
501-SERIES-II (1975) — A pioneering passive loudspeaker system from Bose, known for its unique diffuse sound field and early use of psychoacoustics in home audio.
601 (1977) — A floor-standing direct/reflecting loudspeaker system designed to deliver 901-like sound at a lower cost
601 Series III (1985) — A high-efficiency speaker system designed for spacious sound with minimal amplification, part of Bose's acclaimed 601 line.
601 Series IV (1995) — A high-efficiency speaker system designed for spacious sound with minimal amplification, featuring Bose's Direct/Reflecting technology.
601-SERIES-I (1979) — The Bose 601-SERIES-I, introduced in 1979, was a groundbreaking bookshelf speaker designed for stereo imaging and spacious sound in small to medium rooms.
601-SERIES-II (1982) — Bose 601-SERIES-II: A landmark bipolar speaker system designed for spacious, immersive sound in home audio environments'.
701-SERIES-II (1977) — A pioneering passive direct/reflecting speaker system designed for natural, spacious sound reproduction in domestic environments.
8.2 (1978) — Bose 8.2 (1978) — A rare Stereo Everywhere speaker with a 10-inch woofer and dual 3-inch tweeters. Designed for wide dispersion, not audiophile precision.
901 Active Equalizer — An active equalizer required for the Bose 901 Direct/Reflecting speaker system to achieve its intended frequency response.
901 EQ — Bose 901 EQ — active equalizer for the iconic 901 Direct/Reflecting speaker system, featuring 24 dB boost/cut and ten response contours.
901 Series I (1968) — The groundbreaking Bose 901 Series I, introduced in 1968, redefined loudspeaker design with its unique direct/reflecting technology and reliance on equalization for balanced sound.
901 Series III (1975) — The Bose 901 Series III is a revolutionary direct/reflecting speaker system known for its spacious soundstage and unique design philosophy.
901 Series IV (1980) — The Bose 901 Series IV passive loudspeaker system, known for its unique direct/reflecting design and included active equalizer.
901 Series V (1980) — The Bose 901 Series V is a legendary direct/reflecting speaker system known for its unique sound diffusion and room-filling audio performance.
901 Series VI (1993) — The Bose 901 Series VI, a direct-radiator loudspeaker system with active equalization, represents the final evolution of Bose's iconic speaker design for home audio.
AM-5 Acoustimass 5 Series I (1985) — The Bose AM-5 Acoustimass 5 Series I, a pioneering compact speaker system from the mid-1980s, combining small satellite speakers with a bass module for balanced, spacious sound.
VS100-VIDEO-MONITOR (1985) — A compact video monitor system from Bose designed for early home video applications, blending audio and visual presentation in a minimalist enclosure.

Other Models

Bose - Audio Research Pioneer — Founded by MIT professor Amar Bose in 1964. Revolutionary research-based approach to audio, creator of the 901 Direct/Reflecting speaker system.
10.2-SERIES-I (1988) — A pioneering active loudspeaker system with integrated electronics and proprietary Acoustimass technology.
10.2-SERIES-II (1988) — A unique active speaker system from Bose, combining powered bass and passive satellite design for balanced, room-filling sound.
101-MUSIC-MONITOR (1970) — A unique, vertically oriented loudspeaker system designed for background music and architectural integration in the early 1970s.
1600 (1978) — A high-powered solid-state amplifier from Bose's early professional audio line, known for reliability and clean output in commercial installations.
1800 — Bose Model 1800-V Professional Stereo Power Amplifier (1979): 600W into 4Ω, integrated crossover, 28 lbs. A rare, powerful system built for commercial sound.
1800-SERIES-II (1979) — A unique active sound system from Bose, combining compact design with proprietary acoustic technology for its era.
201-SERIES III (1981) — A passive in-wall/indoor speaker system from Bose known for spacious sound and unique direct/reflecting design.
201-SERIES IV (1980) — A compact, direct/reflecting bookshelf speaker designed for immersive stereo imaging in small to medium rooms.
201-SERIES-I (1974) — Bose 201-SERIES-I (1974) — Early Direct/Reflecting speaker with 6.5-inch woofer; details scarce but design influential.
201-SERIES-II (1979) — A compact, direct/reflecting speaker system designed for small to mid-sized rooms, known for spacious sound and unique Bose acoustic philosophy.
2201 (1966) — A pioneering but controversial speaker system from Bose's early years, designed for omnidirectional sound using floor and ceiling reflections.
301 Series III (1980) — A classic passive bookshelf speaker known for its unique wall-mount design and spacious soundstage.
301 Series IV (1985) — A classic passive bookshelf speaker from Bose, known for its wall-mounting design and spacious soundstage.
301-SERIES-I (1970) — One of the first mass-market bookshelf speakers from Bose, the 301-SERIES-I introduced consumers to balanced sound and the company's unique acoustic design philosophy.
301-SERIES-II (1977) — Bose 301-SERIES-II (1977) passive bookshelf speaker with Direct/Reflecting® tech, 89dB sensitivity, 8-ohm impedance — a vintage favorite for room-filling sound
4.2 — Bose 4.2 Series II (1989–1994) bookshelf speakers feature Direct/Reflecting design, 8Ω impedance, 75W power handling, and dual 3'' tweeters — a diffuse-field classic.
4.2-SERIES-I (1984) — Bose 4.2 Series I (1984) satellite speaker system: 2.5-inch full-range drivers, 100Hz-18kHz with bass module, wall-mountable. Full specs and collector info.
401 — Floorstanding speakers using Bose’s Direct/Reflecting technology to create a wide, immersive soundstage through controlled sound reflection.
401-SERIES-I (1971) — An early Bose speaker system designed for high-fidelity sound using direct/reflecting technology.
401-SERIES-II (1978) — A compact passive bookshelf speaker from Bose's early high-fidelity line, designed for integration with the Bose 901 system as satellite speakers.
501 — Bose 501 Series IV (1977–82?) – 4Ω direct/reflecting floor speaker with 25cm woofer & dual 7.5cm drivers. Spatial sound, 115W IEC, 19kg.
501 SERIES I — Bose 501 Series I (1971–1977) — a foundational Direct/Reflecting® floor speaker with 10-inch woofer, valued for its room-filling sound and historical role in Bose's rise.
501 Series III (1977) — A pioneering passive loudspeaker system from Bose, known for its unique direct/reflecting design and spacious soundstage.
501 Series IV (1987) — A high-efficiency passive loudspeaker system designed for wide, diffuse sound dispersion and ambient listening environments.
501-SERIES-II (1975) — A pioneering passive loudspeaker system from Bose, known for its unique diffuse sound field and early use of psychoacoustics in home audio.
550 AM FM — A solid-state stereo receiver with built-in 901 equalizer for Bose speaker systems
601 (1977) — A floor-standing direct/reflecting loudspeaker system designed to deliver 901-like sound at a lower cost
601 Series III (1985) — A high-efficiency speaker system designed for spacious sound with minimal amplification, part of Bose's acclaimed 601 line.
601 Series IV (1995) — A high-efficiency speaker system designed for spacious sound with minimal amplification, featuring Bose's Direct/Reflecting technology.
601-SERIES-I (1979) — The Bose 601-SERIES-I, introduced in 1979, was a groundbreaking bookshelf speaker designed for stereo imaging and spacious sound in small to medium rooms.
601-SERIES-II (1982) — Bose 601-SERIES-II: A landmark bipolar speaker system designed for spacious, immersive sound in home audio environments'.
701-SERIES-II (1977) — A pioneering passive direct/reflecting speaker system designed for natural, spacious sound reproduction in domestic environments.
8.2 (1978) — Bose 8.2 (1978) — A rare Stereo Everywhere speaker with a 10-inch woofer and dual 3-inch tweeters. Designed for wide dispersion, not audiophile precision.
802 — Bose 802 Series II Loudspeaker (1973–1976) — 8x 4½ drivers, 91dB-SPL, requires 802-E EQ. Lightweight PA system with cult following.
901 — Bose 901 (1968–2017) — nine-driver direct/reflecting speakers with active EQ. A polarizing icon that redefined room-filling sound.
901 5 — Bose 901 Series V (c.1982–91) loudspeaker system: 9x 4.5-inch drivers, 89% reflected sound, requires active EQ. A divisive classic.
901 Active Equalizer — An active equalizer required for the Bose 901 Direct/Reflecting speaker system to achieve its intended frequency response.
901 EQ — Bose 901 EQ — active equalizer for the iconic 901 Direct/Reflecting speaker system, featuring 24 dB boost/cut and ten response contours.
901 Series I (1968) — The groundbreaking Bose 901 Series I, introduced in 1968, redefined loudspeaker design with its unique direct/reflecting technology and reliance on equalization for balanced sound.
901 SERIES II — Bose 901 Series II (1975–1976) — 9-driver Direct/Reflecting speakers with 8Ω impedance and active EQ. A polarizing classic with immersive soundfield.
901 Series III (1975) — The Bose 901 Series III is a revolutionary direct/reflecting speaker system known for its spacious soundstage and unique design philosophy.
901 Series IV (1980) — The Bose 901 Series IV passive loudspeaker system, known for its unique direct/reflecting design and included active equalizer.
901 Series V (1980) — The Bose 901 Series V is a legendary direct/reflecting speaker system known for its unique sound diffusion and room-filling audio performance.
901 Series VI (1993) — The Bose 901 Series VI, a direct-radiator loudspeaker system with active equalization, represents the final evolution of Bose's iconic speaker design for home audio.
AM-5 Acoustimass 5 Series I (1985) — The Bose AM-5 Acoustimass 5 Series I, a pioneering compact speaker system from the mid-1980s, combining small satellite speakers with a bass module for balanced, spacious sound.
VS100-VIDEO-MONITOR (1985) — A compact video monitor system from Bose designed for early home video applications, blending audio and visual presentation in a minimalist enclosure.