Tannoy 2528-(10") – Vintage Studio Monitor
The Tannoy 2528-(10") is a professional studio monitor from the 1970s. It uses Tannoy's dual concentric driver. Tannoy designed it for broadcast and studio work, and it is a 10-inch speaker with time-aligned, phase-coherent sound. Engineers liked it for its accurate midrange and wide dispersion, and for its high sensitivity.
Specifications
| Feature | Specification |
| Model | 2528-(10") |
| Brand | Tannoy |
| Year of Production | 1970s |
| Driver Configuration | 10-inch dual concentric (woofer + tweeter) |
| Woofer | 10" paper cone |
| Tweeter | Phenolic ring dome, coaxial |
| Impedance | 8 ohms |
| Sensitivity | 91 dB (1W/1m) |
| Frequency Response | Approx. 50 Hz – 18 kHz (typical) |
| Power Handling | Unknown (passive, requires external amp) |
| Crossover | Passive internal crossover |
| Enclosure Type | Bass-reflex or sealed (varies by cabinet) |
| Dimensions | Varies by cabinet design |
| Weight | Approx. 25–30 lbs per speaker |
Historical Context
The Tannoy 2528-(10") was part of Tannoy's professional monitor lineup from the 1970s, built for radio stations, recording studios, and public address systems. It used Tannoy's dual concentric driver technology, with the tweeter mounted at the center of the woofer so the sound comes from a single point source. That layout minimized phase distortion and kept the wavefronts coherent across frequencies. The result was good imaging and off-axis response.
This model was widely used in BBC studios and other broadcast facilities across Europe, contributing to its reputation for accuracy and reliability. The 2528-(10") exemplifies the era when passive, high-efficiency speakers were the standard in professional audio, and Tannoy stood at the forefront of loudspeaker innovation.
Sound Signature
The 2528-(10") sounds warm, smooth, and detailed, with a pronounced clarity in the midrange that suits vocal and instrumental monitoring. The dual concentric design gives excellent stereo imaging and a broad sweet spot. That makes it forgiving in less-than-ideal listening rooms.
- Bass: Punchy and tight for a 10-inch driver, with decent extension down to 50 Hz
- Mids: Transparent and natural, with characteristic Tannoy richness
- Highs: Controlled and non-fatiguing, thanks to the phenolic ring tweeter and ferrofluid damping
Its sensitivity is high at 91 dB, so it performs well even with lower-powered amplifiers. Vintage audio enthusiasts like it for that.
Maintenance and Restoration Tips
Like all vintage speakers, the Tannoy 2528-(10") may need maintenance after decades of use. Common issues include:
- Aging Surrounds: The foam or fabric surrounds on the woofer may degrade, leading to distortion or rattling. Refoaming is a common and effective restoration step.
- Tweeter Ferrofluid: The tweeter may contain dried ferrofluid, which can cause harshness or failure. Cleaning or refilling may be necessary.
- Crossover Components: Electrolytic capacitors in the crossover can dry out over time. Replacing them with modern equivalents improves reliability and sound quality.
- Cabinet Condition: Check for loose joints, veneer damage, or port blockages. Refinishing or structural repairs may enhance both appearance and acoustic performance.
Regular inspection and preventive maintenance can extend the life of these speakers significantly. When restored properly, the 2528-(10") remains a competitive monitor even by modern standards.
Collectibility and Market Value
The Tannoy 2528-(10") has a collectibility rating of 7/10. It appeals to vintage audio collectors, studio memorabilia enthusiasts, and DIY speaker restorers. Its professional background and its driver technology keep interest in it going.
- Market Value: $300–$600 per pair, depending on condition and restoration quality
- Restored Units: Often command higher prices, especially when upgraded with modern components while retaining original aesthetics
- Originality Premium: Fully original, working pairs in good condition are increasingly rare and sought after
Conclusion
As a representative of Tannoy's dual concentric line, the 2528-(10") is known for coherence, clarity, and musicality. It can be used in a retro studio setup or a classic hi-fi system.
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