Ayre KX-R Twenty preamp
Best high-end preamp for audiophiles seeking pure, tube-like sonic refinement.
The Ayre KX-R Twenty preamp redefines sonic purity with its distinguished, zero-feedback circuit design and advanced Double Diamond output stage. This model significantly elevates resolution, dynamics, and rhythmic precision, offering a smooth, refined audio experience often likened to the warmth of tube amplifiers. Featuring fully balanced, discrete circuitry and versatile connectivity, it represents Ayre's dedication to unparalleled sound quality, though it is now a discontinued model.
$40000.00
Owner Satisfaction
4.9
/ 5
Category Rank
1
/ 93
Best Signal Processors
Price vs Category Average
+172%
Above average
Input Impedance
2
/ Mohm balanced
Who it's for
- Audiophiles demanding pristine signal integrity at any volume level
- Listeners seeking an uncolored, hyper-realistic soundstage
- System builders prioritizing long-term reliability and noise-free performance
Who should skip it
- Budget-conscious buyers seeking entry-level high-end audio
- Owners of legacy equipment relying on single-ended RCA connections
- Users with confined equipment racks lacking proper ventilation
Performance breakdown
Sonic Transparency
Zero-feedback design delivers an incredibly pure and uncolored signal path.
Dynamic Range
Effortlessly captures the subtle nuances and explosive peaks of complex recordings.
Build Integrity
Heavy-duty chassis construction reflects a standard of uncompromising industrial design.
Circuit Stability
Equilock gain stage maintains consistent performance regardless of load variations.
Connectivity Versatility
Fully balanced architecture provides robust integration for high-end audio systems.
Rhythmic Precision
Exceptional timing and pace bring a lifelike energy to every performance.
Key Specs
Input Impedance
2 Mohm balanced
Output Impedance
300 ohm balanced
Frequency Response
DC – 250 kHz
Power Consumption
35 watts standby/normal, 65 watts remote active
Dimensions
17.25″ W x 11.5″ D x 3.75″ H
Weight
40 pounds
Features
- Zero-feedback circuit for pure sound
- Double Diamond output stage reduces distortion
- Equilock gain stage ensures stability
- Fully balanced, discrete circuitry
- Exceptional resolution and dynamics
- Impressive rhythmic ability
- Quietest, smoothest, most resolving preamp
- Premium build and finish
What customers say
The Ayre KX-R Twenty is celebrated as an endgame preamplifier, lauded for its exceptional transparency and natural soundstage. It delivers musical texture and emotion without coloration, offering a rare balance of analytical detail and organic musicality. Owners report significant upgrades over previous models, noting greater resolution and bass authority. While a luxury item, its profound musical performance and superb build quality are considered by many to justify the investment. To fully appreciate its capabilities, high caliber associated equipment is recommended.
Know before you buy
Zero-feedback design avoids the corrective loops found in many amplifiers, which can sometimes introduce artificial harshness. In the KX-R Twenty, this results in a more natural, fluid sound that many listeners describe as having the warmth and organic quality of a tube amplifier.
The Double Diamond output stage is engineered to significantly lower distortion levels. By minimizing these artifacts, the preamp is able to deliver greater rhythmic precision and a cleaner, more resolving signal to your power amplifier.
The KX-R Twenty features a fully balanced, discrete circuit design with a 300-ohm output impedance. While it is designed to work exceptionally well with high-end balanced systems, you should ensure your power amplifier is compatible with balanced inputs to fully utilize the preamp's architecture.
The Equilock gain stage is a proprietary technology that keeps the circuit operating in its most stable, linear range. This ensures that the preamp maintains consistent performance and sonic purity regardless of fluctuations in temperature or power supply.
Given that the unit weighs 40 pounds and measures 17.25 inches wide, you will need a sturdy, well-ventilated shelf. It is important to provide enough clearance for the 11.5-inch depth and to ensure the surface is level to support the premium chassis construction.
The unit consumes 35 watts in standby or normal operation and increases to 65 watts when the remote control is active. Because it draws power continuously, it is best placed in a location with adequate airflow to manage heat dissipation.
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