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. It was built during the golden era of analog audio, with Swiss engineering, careful attention to detail, solid construction, and a neutral sound that audiophiles favored. Production ran until 1982. It is still respected among vintage speaker enthusiasts for its accurate sound and its walnut veneer finish.
Specifications
| Feature | Specification |
| Production Years | 1979–1982 |
| Type | 3-way, passive radiator 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 | approximately 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 Symbol B MkII came out while the Swiss manufacturer Studer (the parent company of Revox) was expanding its consumer audio offerings to compete with high-end European and Japanese brands. Studer was known mainly for professional tape recorders. It used that reputation for precision engineering to build Revox-branded home audio gear that stressed 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 sounds neutral, transparent, and highly detailed. It avoids coloration and aims for faithful reproduction of the source material. The 12-inch woofer gives deep, well-controlled bass, and the dedicated midrange driver keeps vocals and instruments clear and present. The dome tweeter sits behind an acoustic lens. It offers smooth high-frequency extension with excellent dispersion, which reduces hot spots and improves stereo imaging.
These speakers work best in medium to large rooms. They pair well with high-quality tube or solid-state amplifiers that can use their 4-8 ohm impedance range and 90 dB sensitivity.
Maintenance and Restoration Tips
Because of their age, Symbol B MkII speakers often need 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 Symbol B MkII scores a 7/10 on the collectibility scale. It is not as widely known as some British or American classics, but European audiophiles and Revox collectors prize it for its engineering pedigree and sound.
On recent market trends, a pair in good working condition typically sells for $300 - $600. Fully restored units with upgraded components and pristine cabinets bring higher prices. Originality adds value for purists, especially in the drivers and crossover parts.
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.
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