Ayon Audio STRATOS Vacuum Tube Class-A D/A -Converter/Preamplifier...As New.

Ayon STRATOS Vacuum Tube Class-A D/A Converter /preamplifier. Ayon's top of the Line Dac/Pre - Retail Price $10,000USD Like New with all accessories and original packaging. *Remote control has a few small marks on the edges. Approx 12 months old. *Please contact me for accurate postage costing. Thankyou. Ayon Stratos DAC "Haute Fidélité N ° 2" July 2013 France Some review quotes: English Translation "The Stratos DAC / preamp is among Ayon's latest designs. As is now the norm for Ayon The layout brings together tubes and state-of-the-art conversion circuits. It results in one of the most remarkable sound reproductions ever met in a DAC so far. The Ayon graces us with rich and powerful bass ... The percussions in the introduction to Moonlight on Spring River by Zhao Cong explore very low frequencies with formidable articulation. The tonal rendering is examined did you feel as if you were with the artists; on Ha Vinto Amor Sung by Simone Kermes, the soprano is taking shape before your eyes ... you can hear every modulation in her voice and intakes of breath. The Stratos feels at ease on any transient ... like the timpani in Shostakovich's Eleventh Symphony. On It's Alright with Me by Harry Connick, Jr., the singer and musicians have never been so CLEARLY Placed in the soundstage. Ayon's Stratos DAC is amongst the best we have ever tested converter in this magazine At Any Price. The Stratos has allured us by its extremely delightful sumptuously transparent and intensely realistic musical rendering, on investment for MusicLovers. " Ayon Audio is pleased to introduce the new audiophile “Stratos “ reference DAC. The Stratos is also prepared for computer playback and general DSD professional audio use. The quad differential gain stage is composed of 2 high performance tubes per channel. The Stratos DAC features a vastly overrated, high capacity power supply for the analog output stage with tube “bridge” rectification, choke coupling and two oversized power transformers. The sound is powerful with fantastic bass speed, extraordinary dynamic, airy, finely detailed and outstanding 3D holographic. The Stratos offers an uncompromising build and reference sound quality level in every aspect. Features & Design Full-featured Tube D/A converter 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 High quality parts throughout Fully hand assembled to insure the highest level of craftsmanship Separate analog output stage for left and right channel Analog inputs ( single-eded and fully balanced) All digital inputs Internal hardware PCM upsampler for CD sources to 24/192K (can be disabled) Native 192kHz PCM and DSDx128 conversion Ultra-low jitter internal clock generator USB input (24/192 asynchronous and DSD) 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. 2 separate R-Core / Low noise – insulated power transformer for digital & analog Tube rectification Choke – filtered power supply and coupled with special film caps Innovative power supply provides a high speed energy delivery on transients Separate and isolated power supplies over each stage of amplification Regulated DC filament supplies with soft start for tube AC power line filter to avoid noise and hash from entering into the unit. 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 tube sockets with gold pins Superior capacitors ( MKP 1% ) 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. Front panel descriptions are engraved AC phase polarity control indicator The aluminium feet are resonance absorbing types Chassis finish: black / chrome.