Used Great condition
Ayre MX-R Twenty Mono Amps
Status & Appearance:
$14,000.00
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Description
The Ayre MX-R Twenty monoblock amplifiers represent the pinnacle of Ayre Acoustics’ engineering, designed as reference-level components for the most demanding high-end audio systems. Building on the original MX-R platform, the “Twenty” version introduces a comprehensive redesign of the audio circuitry, pushing performance into the realm of state-of-the-art amplification with an obsessive attention to detail.
At their core, the MX-R Twenty amplifiers embody Ayre’s long-standing philosophy: zero-feedback, fully balanced, discrete circuitry. Rather than relying on corrective feedback loops, Ayre engineers focus on intrinsic linearity, allowing the amplifier to reproduce music with exceptional purity and naturalness. The result is a presentation that feels effortless, transparent, and strikingly lifelike.
One of the most notable advancements in the MX-R Twenty is the incorporation of EquiLock gain circuitry and the Double Diamond output stage, both designed to enhance linearity and reduce distortion without sacrificing dynamics. These amplifiers also feature a dual-transformer linear power supply, which ensures stable current delivery and allows them to drive even the most demanding loudspeakers with ease.
The construction is equally uncompromising. Each chassis is machined from a solid billet of aluminum, minimizing vibration and eliminating mechanical resonance. Internally, components are carefully arranged to shorten signal paths and reduce interference, while proprietary materials—such as ultra-low-loss circuit boards and custom capacitors—further preserve signal integrity.
Sound Performance
Sonically, the MX-R Twenty is widely regarded as delivering a rare combination of power and finesse. With immense current capability and high output, it can control large speakers effortlessly, yet it remains delicate and nuanced when reproducing subtle musical details.
Listeners often describe the sound as both authoritative and relaxed, with deep, controlled bass, an open and natural midrange, and extended, grain-free highs. The amplifier’s ability to present music without strain—regardless of volume or complexity—is one of its defining traits.
Review Quotes
- “Effortless… never seems to break a sweat.” – HomeTheaterReview
- “Open, revealing… never harsh or forced.” – HomeTheaterReview
- “Full-bodied, liquid, and three-dimensional.” – Stereophile
These impressions highlight the MX-R Twenty’s ability to combine transparency with musical engagement—an elusive balance in high-power solid-state amplification.
Product Specifications
- Type: Monoblock (single-channel) solid-state power amplifier
- Power Output:
- 300 watts into 8 ohms
- 600 watts into 4 ohms
- Up to 1200 watts into 2 ohms
- Circuit Design: Fully balanced, zero-feedback, discrete topology
- Gain: 26 dB
- Input Impedance: 2 MΩ balanced (1 MΩ per phase)
- Frequency Response: DC – 250 kHz
- Inputs: 1 × balanced XLR input only
- Output Stage: Ayre Double Diamond configuration
- Power Supply: Dual-transformer linear supply with AyreLock circuitry
- Power Consumption:
- ~120W (operating, no signal)
- ~45W (standby)
- Dimensions: 11″ W × 18.75″ D × 3.75″ H
- Weight: ~52 lbs (23 kg) per amplifier
Conclusion
The Ayre MX-R Twenty monoblocks are uncompromising amplifiers built for listeners who demand the highest level of performance. Their combination of massive power, zero-feedback design, and meticulous construction results in a sound that is both authoritative and deeply natural. Whether driving complex orchestral works or intimate acoustic recordings, they deliver a sense of realism and ease that places them firmly among the elite in high-end audio amplification.


