COS EngineeringD1 V2 DAC/PREusedCOS Engineering D1 V2 DAC/PRE - mint customer trade-inBuy with confidence at www.perrottaconsulting.com selling high-end audio for 20 years. Top brands, great advice, new and used equipment available, we take trade-ins. Auditions available by app...4000.00

COS Engineering D1 V2 DAC/PRE - mint customer trade-in

Listing ID: lisa80e2 Classified 
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percon 

member since November 2009

Perrotta Consulting  Verified Dealer

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Condition
8/10
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Ships fromBethel, CT, 06801
Ships toUnited States
Package dimensions20.0" × 25.0" × 25.0" (40.0 lbs.)
Shipping carriersUPS or FedEx
Shipping cost
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Original accessoriesRemote Control, Box, Manual
AverageResearch Pricing

  
Buy with confidence at www.perrottaconsulting.com selling high-end audio for 20 years.  Top brands, great advice, new and used equipment available, we take trade-ins.  Auditions available by appointment, feel free to call anytime (877-289-2014) or (914-714-9213) with questions about any of our great products.

Mint customer trade-in
COS Engineering D1 V2 DAC/preamp
Great condition, original packaging and accessories

STYLISH DESIGN The exterior of D1, composed of aerospace grade aluminum alloy which seals off electric and magnetic interference from outside, is crafted finely to embody a structure of straight lines and a single circle.

ALGORITHM AND DSP COS's proprietary algorithm with a linear-phase delay FIR filter can up-sample original data to 176.4K or 192K, and this massive computation is handled by a powerful 3648 MMAC/sec DSP.

BUFFER and RE-CLOCKING D1 stores digital data in a one-second buffer before converting to analog signals, under the coordination of a crystal oscillator with a jitter precision less than 1ps and a dedicated re-clocking circuitry.

DUAL POWER SUPPLY Two torroid transformers power the digital circuit and the analog circuit separately, thereby eliminating possible interferences.

PARALLEL STRUCTURE WITH TUNING AND MATCHING The analog circuit bifurcates into two boards to eliminate cross-talk, and the high-performance DAC chips, one on each board running as mono, are manually tuned and matched to attain a lower distortion.

FULLY BALANCED DESIGN D1’s balanced design ensures that even harmonics match and are gracefully cancelled out. Distortions are low to the extent possible.

VOLUME CONTROL D1’s volume control is composed of a ladder of high precision resistors and an array of analog switches which are low in resistance, noise, and distortion.

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