Ayon Orthos XS Mono Amplifiers - Excellent Condition!

We're pleased to present this opportunity to to own a pair of Ayon Orthos XS Amplifiers in outstanding condition with low-hour, fresh tubes, complete in original crates and paperwork. (Tube usage - 200 hours.) This pair of amps are well cared for, "one-owner" examples. They have only ever been used in the dedicated, smoke free room pictured. We will carefully pack and ship these amps in their factory wooden crates. They must be shipped on a pallet via LTL freight unless picked up locally.

The Orthos XS amplifiers are full-featured, true balanced, self biasing vacuum tube mono power amplifiers,  switchable between pentode and triode mode making them ideal for both easy and more difficult loudspeaker loads. They were purchased in 2014/15 and remain in outstanding condition. They are down rated for age only and represent an outstanding value and opportunity.
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Signal Path

Ayon believes that the simplest circuits work best together with the shortest signal path. The shorter the signal path is, the less possibility of sonic degradation from various sources, including the wire itself. Even on the circuit boards, the copper traces are kept to a very minimum length. The completely redesigned circuit board provides a more straightforward and direct approach to the signal paths.

● Logical sequenced soft-start power up for extended tube life
● Power tube and electronic protection circuit system
● 0dB negative feedback (of any kind )
● Ultra short signal path
● Simplest direct circuit path for purest musical sound and high reliability
● No solid state devices in the signal path
● High current and low impedance design that operates tubes in the best areas their curves
● Minimal discrete wiring for optimum signal propagation
● No followers or buffers in the signal path
● High quality parts throughout

Power Supply

The power supplies have been further refined with new components and enhanced AC line noise filtration. Separate power transformers, chokes and filters provide total isolation between the input and output stages which makes this a pure power source. We also use electrolytic capacitors with much larger storage capacity to make up for the loss in filtering when using resistors in lieu of inductors.

● 2 separate low noise –insulated power transformers
● Power transformers are encased, excellent damped and RFI/EMI shielded
● Innovative power supply provides a high speed energy delivery on transients
● Dual choke filtered power supply for power tubes
● Choke for pre and driver stage
● Separate and isolated power supplies over each stage of amplification
● Separate high current filament-regulators for pre and driver tubes
● Regulated DC filament supplies with soft start
● AC power line filter to avoid noise and hash from entering into the unit.
● High capacitance energy storage.
● Current in-rush limiting
● Auto sequencing – Power on cycle completes in 1 minute

Dual Grounding System

The modification of the grounding topology leads to increased rejection of noise from the power supply and other areas. The dual grounding topology used in all of our amplifiers is quite unique to the whole hi-end tube amplification industry. Such extensive topology provides for quieter backdrop for which the music can unfold in its entirety. It further establishes the quick and controlled bass response and the full bodied expression of the high frequency. The ground leg of the signal has not been neglected and given meticulous attention in its implementation. The importance of proper grounding cannot be over emphasized.

● Ground switch
● Central one-point star earth grounding
● Dual grounding system (switchable)

Output Transformer

The super-wide bandwidth output transformer’s major strength is that it can deliver the current in the bass, while at the same time maintaining the speed in the high frequencies, dramatically improving the square wave response of the amplifier. The effect is a much more natural and relaxed sound with much better clarity, resolution and fluidity.

● Super-wide bandwidth high performance output transformer
● High efficiency with low insertion loss for optimal current and voltage transfer
● Multiple tight layering and coupling for extended frequency response
● Output transformers are sealed with an anti-resonance compound material

Components

The type of parts used therefore must have a synergistic relationship to the circuit they are placed in. It is this relationship of which type of part to use where, that ranks our products apart from the mass.

● Selected, premium quality passive components used in all applications
● High speed & high quality audiophile grade coupling capacitors
● Special tube sockets with beryllium – copper spring pins, custom made by Ayon
● WBT NextGen – binding posts
● High quality – RCA input jack
● Neutrik/Swiss – XLR chassis connectors
● Special isolated – internal wiring
● Silver-cupper matrix – internal signal cable
● Gold-plated industrial grade PCB

Mechanical Construction

The high grade aluminum chassis impart a richer, more lustrous tonality with a cleaner background and less hash and grain. All brushed anodized anti-vibration-resonance and non-magnetic chassis’s are fully hand assembled to insure the highest level of craftsmanship.

● Improved heat ventilation chassis
● The aluminium feet are resonance absorbing types
● Backlit “ayon” logo
● All front & rear panel descriptions are engraved
● Ground switch
● Bias analog-instrument with mV scale
● Chassis finish: black / chrome

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Specifications:
 

Amplifier	Ayon Orthos XS
Class of Operation	Triode* or Pentode mode, Class-A*
Tube Complement	KT150 6SJ7 12AU7 12Ax7
Load Impedance	4 & 8 Ohms
Bandwidth	8Hz-70kHz
Output Power /Pentode mode KT150	1 x 300W
Output Power /Triode mode KT150	1 x 200W
Frequency Response	15 Hz – 50 kHz
Input Impedance at 1 kHz	47 KΩ
Input sensitivity ( full power )	1000mV
S/N ratio at full power	98 dB
NFB	0dB
Inputs	RCA & XLR
Dimensions (WxDxH) cm	35x61x25 cm
Weight	50 kg

Product Link: https://www.ayonaudiousadirect.com/product/ayon-orthos-ii-xs/
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Let us know if we can answer questions about these reference grade tube amplifiers. We’re happy to discuss compatibility with your system, your musical tastes as well as your room characteristics. With 20+ years of experience, we’re always happy to provide in depth, honest assistance.

Regarding payment methods, we can accept most major credit cards or Paypal, however a 3.6 percent fee will be applied. Wire transfer or certified bank checks are accepted. Further, certain states may be subject to sales tax. (Ask for details).

Thanks for looking!

The Audio Shoppe, Hingham MA, [email protected], 781-987-3414