Luxman R-107 (1975)
A high-performance analog FM/AM tuner from Luxman’s golden era, built for sonic purity and precision tuning.
Overview
The Luxman R-107 is an analog FM/AM tuner released in 1975 by Luxman Co., Ltd. of Japan. Designed during the transition from tube to solid-state audio, it combines advanced circuitry with a musical, warm character that defines Luxman’s engineering philosophy. The unit covers FM (87.5–108 MHz), medium wave (530–1600 kHz), and shortwave (2.3–22 MHz), making it versatile for international and domestic broadcasts. It features continuous analog tuning via a dual-gang variable capacitor, delivering smooth, precise station selection through a large, easy-to-read analog dial with an illuminated pointer. Housed in a heavy-duty chassis weighing 10.5 kg, the R-107 minimizes microphonic effects and vibration, while its black or silver faceplate with brushed aluminum trim reflects a design ethos that values both function and elegance.
Design
The R-107 uses a dual conversion superheterodyne circuit topology with first and second IF frequencies of 10.7 MHz and 450 kHz, improving image rejection and selectivity—especially valuable in crowded urban RF environments. Its audio path avoids integrated circuits, relying instead on discrete transistors and carefully selected passive components to preserve signal purity. The tuning system centers on a high-quality dual-gang variable capacitor, ensuring accurate and stable reception. The front panel includes a meter-style tuning indicator, contributing to a tactile, engaging user experience that emphasizes analog craftsmanship.
Reception and Use
The R-107 delivers a rich, warm, and detailed sound signature, with excellent stereo imaging and channel separation on FM. It renders vocals and acoustic instruments with lifelike presence, capturing the spatial depth of live broadcasts. Stereophile (December 1976, p.58) noted that "Luxman tuners of this generation reveal a tonal completeness and low-level resolution that make FM listening not just informative, but musically satisfying." On AM, the well-designed IF stages and filtering reduce noise, offering a listenable experience even for voice programming. The inclusion of shortwave reception broadens its utility for international broadcasters and hobbyists.
Market
In good working condition, the R-107 typically sells for $400–$700 USD, with fully serviced units and original accessories commanding higher prices. Silver-finish models are slightly rarer and may carry a small premium. Common issues include deteriorated electrolytic capacitors (which can cause hum or channel imbalance), oxidation on the tuning capacitor (leading to scratchiness), and worn potentiometers—many of which are addressable with recapping, contact cleaner, or NOS replacements. Its all-analog, through-hole construction makes it relatively serviceable compared to later digital models.
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