Revox Symbol B MkII (1979)

The Revox Symbol B MkII is a high-fidelity floor-standing loudspeaker introduced in 1979 as part of Revox's premium audio lineup. Built during the golden era of analog audio, this speaker exemplifies Swiss engineering with meticulous attention to detail, robust construction, and a neutral sonic character favored by audiophiles. Produced until 1982, the Symbol B MkII remains a respected classic among vintage speaker enthusiasts for its accurate sound reproduction and elegant walnut veneer finish.

Specifications

Feature	Specification
Production Years	1979–1982
Type	3-way, bass reflex floor-standing speaker
Drivers	12-inch woofer, midrange driver, dome tweeter
Crossover	High-quality passive crossover network
Frequency Response	Not officially documented (estimated 40Hz–20kHz)
Sensitivity	90 dB
Nominal Impedance	4–8 ohms
Power Handling	50–100W RMS per channel
Enclosure	Bass reflex with acoustic lens for tweeter
Dispersion	Wide and controlled via acoustic lens design
Cabinet Finish	Walnut veneer
Dimensions (H×W×D)	Approx. 105 × 35 × 40 cm (varies by source)
Weight	Approx. 28 kg per speaker

Historical Context

The Revox Symbol B MkII was developed during a period when Swiss manufacturer Studer (the parent company of Revox) was expanding its consumer audio offerings to compete with high-end European and Japanese brands. Known primarily for professional tape recorders, Studer leveraged its reputation for precision engineering to create Revox-branded home audio equipment that emphasized reliability, build quality, and sonic neutrality.

The Symbol B MkII was positioned as a flagship speaker system, designed to complement Revox's high-performance amplifiers and source components. Its 3-way configuration, large 12-inch woofer, and advanced cabinet design reflected the era's push toward full-range, low-distortion loudspeakers capable of accurate studio-monitor-like performance in domestic environments.

With its hand-finished walnut veneer and robust internal construction, the Symbol B MkII stood out for its premium aesthetics and long-term durability. It remains a symbol of Revox's commitment to audiophile-grade engineering during the late 1970s and early 1980s.

Sound Signature

The Symbol B MkII delivers a neutral, transparent, and highly detailed sound profile. It avoids coloration, aiming instead for faithful reproduction of the source material. The 12-inch woofer provides deep and well-controlled bass, while the dedicated midrange driver ensures clarity and presence in vocal and instrumental ranges. The dome tweeter, mounted behind an acoustic lens, offers smooth high-frequency extension with excellent dispersion characteristics, reducing hot spots and improving stereo imaging.

These speakers perform best in medium to large rooms and pair well with high-quality tube or solid-state amplifiers that can take advantage of their 4–8 ohm impedance range and 90 dB sensitivity.

Maintenance and Restoration Tips

Due to their age, Revox Symbol B MkII speakers often require some restoration to perform at their best:

Refoaming: The most common issue is deteriorated foam surrounds on the woofers. Replacing these with modern butyl rubber surrounds is highly recommended to restore bass response and prevent further damage.
Crossover Components: Capacitors and inductors in the crossover network may degrade over time. Checking for drift in component values or signs of overheating ensures optimal driver protection and tonal balance.
Grille Fabric: Original grilles may be torn or discolored. Replacement fabric in matching acoustically transparent material can improve appearance without affecting sound.
Cabinet Care: The walnut veneer may benefit from cleaning and light refinishing. Avoid harsh chemicals; use a quality wood polish designed for vintage furniture.
Binding Posts: Check speaker terminals for corrosion or looseness. Upgrading to modern high-conductivity terminals can improve connectivity.

Collectibility and Market Value

The Revox Symbol B MkII scores a 7/10 on the collectibility scale. While not as widely known as some British or American classics, they are prized by European audiophiles and Revox collectors for their engineering pedigree and sonic performance.

As of recent market trends, a pair in good working condition typically sells for $300–$600, with higher prices commanded by fully restored units with upgraded components and pristine cabinets. Originality, especially in drivers and crossover parts, adds value for purists.

Conclusion

The Revox Symbol B MkII is a testament to Swiss precision in audio engineering. With its balanced sound, robust build, and elegant design, it remains a compelling choice for vintage audio enthusiasts seeking accurate, uncolored sound reproduction. While maintenance is often required due to age, proper restoration unlocks the full potential of these classic speakers, making them a rewarding addition to any high-fidelity setup.