I have a 9/10 Ayon CD-1SX CD/DAC Preamp for sale. It is in great shape and has been tested and sounds and looks great. In the factory double box with remote control and power cord.

Ayon info:
Ayon is pleased to introduce the CD-1sx, a totally new redesign of
our already very highly regarded CD-1sc model offering. The CD-1sx is
also prepared for computer playback. The CD-1sx is in many respects a
ground-breaking CD-Player design with a new advanced technology like a
new single-ended 6H30 output stage and DAC. This CD-Player is presenting
a new level of musical performance with stunning vitality, clarity,
natural warmth, superb dynamic contrasts and besides all of them a
superb construction quality. The CD-1sx is one of the finest CD-Player
with vacuum-tube output stage in their class.

Features

Full-featured Tube Top Loader CD-Player
Class-A triode vacuum-tube output stage for single-ended & balanced operation

Signal Path
We
believe that the simplest circuits work best together with the shortest
signal path. That is why our pre-amplifiers to date have used
single-ended pure class-A circuitry. 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
• Warm up function
• 0dB negative feedback  (of any kind )
• Ultra short signal path
• Simplest direct circuit path for purest musical sound and high reliability
• Low output impedance for driving long runs interconnect to an amplifier, and any tube or solid state power amp
• No solid state devices in the analog tube output (signal path )
• Minimal discrete wiring for optimum signal propagation
• No followers or buffers in the signal path
• No DC servo that degrades the signal
• High quality parts throughout
• Fully hand assembled to insure the highest level of craftsmanship
• Separate analog output stage for left and right channel
• Internal hardware PCM upsampler for CD sources to 24/192K (can be disabled)
• Digital input - S/PDIF (RCA), & TosLink
• USB input – 24/192 kHz ( asynchronous) and DSD
• Digital output - S/PDIF (RCA)

Power Supply
The
power supplies have been further refined with new components and
enhanced AC line noise filtration. Separate power transformer windings
and filters provide total isolation between the input and output stage
which makes this a pure power source and it is a critical attribute for a
6H30 output stage. 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.

• R-Core / Low noise – insulated power transformer for digital & analog
• Innovative power supply provides a high speed energy delivery on transients
• Separate and isolated power supplies over each stage of amplification
• AC power line filter to avoid noise and hash from entering into the unit.
• Tube rectification for analog output stage
• 10 separate voltage regulators

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
• High quality Special tube sockets with gold pins
• Capacitors ( MKP 2% )
• High quality – RCA & XLR jack
• Gold-plated industrial grade PCB

Mechanical Construction
The
high grade aluminum chassis impart a richer, more lustrous tonality
with a cleaner back-ground 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.

• Backlit function buttons
• Modified suspension system to isolate the CD-transport from mechanical  vibrations
• Anti-vibration magnetic CD-clamp system with dark acrylic CD-LID
• AC phase polarity control indicator
• The aluminium feet are resonance absorbing types
• Metal remote commander
• Chassis finish: black / chrome

Specifications 
CD-Player Ayon CD-1sx 
Conversion rate  192kHz / 32 bit & DSD 
Tube complement  6H30 
Dynamic range  > 116dB 
Output
level @1 kHz / 0,775V -0dB Low 0 – 2.5 V / variable
Output level @1 kHz
/ 0,775V -0dB High 0 – 5V / variable
Output impedance  Single-Ended-RCA ~ 300 Ω 
Output impedance  Balanced-XLR ~ 300 Ω 
Digital output 75 Ω S/PDIF (RCA) 
Digital input 75Ω S/PDIF (RCA) USB – 24/192 kHz & DSD, TosLink S/N ratio > 118 dB
Frequency response 20Hz - 20kHz  +/- 0.3dB 
Total harmonic distortion @ 1kHz < 0.001%
 Remote control Yes 
Output complement  RCA & XLR

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Read our AudiogoN #1 rated feedback & call me at 770-667-5633 with questions or to order.
GA & HI residents add sales tax

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