Revox B760 FM Tuner

The Revox B760, introduced in 1981, stands as a landmark in analog FM tuner design. Manufactured by the Swiss audio company Studer under the Revox brand, the B760 was engineered for audiophiles and broadcast professionals who demanded the highest fidelity in FM reception. With its advanced feature set, precision build quality, and forward-looking integration of Radio Data System (RDS) technology, the B760 remains a sought-after component among vintage audio enthusiasts.

Specifications

Feature	Specification
Year of Production	1981–1986
Type	FM Tuner (Tuner Only – No Amplification)
Tuning System	Quartz PLL Synthesized Tuning with Microprocessor Control
Presets	16 Station Presets
FM Sensitivity	1.7 μV (Mono, 30 dB S/N), 2.8 μV (Stereo, 46 dB S/N)
Output Impedance	600 ohms (Balanced XLR), 50 ohms (Unbalanced RCA)
Front End	Dual-Gate MOSFET RF Amplifier
Demodulation	Phase-Locked Loop (PLL) FM Demodulator
Outputs	Balanced XLR, Unbalanced RCA
RDS Compatibility	Yes (Radio Data System)
Power Requirements	220–240 VAC (Europe), 110–120 VAC (via transformer)
Dimensions (W×H×D)	482 × 132 × 360 mm (19" rack width)
Weight	12.5 kg (approx.)

Historical Context

The Revox B760 was released during a golden era of high-fidelity analog audio, a time when manufacturers competed to deliver the most accurate and transparent signal path from broadcast to listener. As one of the first high-end tuners to feature RDS compatibility, the B760 allowed users to receive station identification, program information, and traffic alerts—features that were revolutionary in the early 1980s.

Built with Swiss precision, the B760 utilized a quartz-locked phase-locked loop (PLL) tuning system, ensuring exceptional frequency stability and minimizing drift. Its microprocessor-controlled interface offered 16 fully programmable presets with smooth tuning via an encoder knob, blending user convenience with high-end engineering.

The dual-gate MOSFET front end and PLL demodulator contributed to its legendary reception capabilities, allowing the B760 to extract clear, low-noise audio even from weak or distant FM stations. Its balanced XLR outputs made it a favorite in professional monitoring environments and high-end home systems alike.

At a time when digital audio was still in its infancy, the B760 represented the pinnacle of analog tuner technology. It was succeeded by the B770, but the B760 remains a benchmark for FM tuner performance.

Sound Signature

The Revox B760 delivers a sound that is neutral, transparent, and highly detailed. It exhibits excellent stereo imaging and channel separation, with minimal phase distortion and very low noise floor. Its PLL demodulator ensures tight carrier locking, reducing jitter and improving stereo stability.

Listeners often praise the B760 for its ability to resolve subtle details in broadcasts and its clarity on marginal signals. The absence of coloration makes it an ideal front-end component for critical listening and archival applications.

Maintenance and Tips

While the B760 is known for its robust construction, units over 40 years old may require attention to maintain optimal performance:

Capacitor Replacement: The electrolytic capacitors, especially in the power supply and audio output stage, should be inspected and replaced if necessary. Aging capacitors can lead to hum, reduced performance, or failure.
Display Backlight: The VFD (Vacuum Fluorescent Display) backlight may dim or fail over time. Replacement tubes or LED retrofit kits are available from specialist vendors.
Tuning Encoder: The rotary encoder used for tuning can wear out, causing erratic behavior or loss of control. Cleaning or replacement may be needed.
RDS Functionality: RDS only works in regions where broadcasters transmit RDS data. In North America, RDS is widely used, but in some regions, the feature may remain inactive.
Cleaning and Lubrication: Internal cleaning of connectors and light lubrication of mechanical parts (if applicable) can restore smooth operation.
Firmware and Calibration: The microprocessor can be reset if presets or tuning behave erratically. Full calibration requires specialized equipment and is best performed by qualified technicians.

Collectibility and Market Value

The Revox B760 is highly collectible, earning an 8/10 on the vintage audio collectibility scale. Its combination of advanced features, build quality, and historical significance makes it a prized addition to any analog audio system.

As of 2024, working units in good condition typically sell for $300–$600, with prices varying by region, cosmetic condition, and completeness (e.g., original packaging, manuals). Fully serviced units with replaced capacitors and restored displays command the higher end of the market.

Enthusiasts value the B760 not only for its performance but also as a symbol of Swiss engineering excellence in the analog domain. It remains a favorite among FM radio purists and those building high-end vintage signal chains.