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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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Digital Drive Upsamplers, DACs, jitter, shakes and analogue withdrawals, this is it. |
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In Reply to: RE: used Bryston or Wadia DAC posted by wood1 on June 5, 2015 at 17:53:36:
My W25came about directly as development of the PowerDAC and much of it was to be applied to the W27ix. It never came about. It was basically just an 11 year old chassis when I got it in 2006. The internal electronics are from the W861 CD player including the main D/A circuit board. The power supply is not modified and is original W25.
The W27 had an analog output level that went up to 9.0 Vrms, which is huge. My W25 goes up to 4.2 Vrms, which is about half that. The 4.2 Vrms will drive almost any system. It accepts 24 bit 96kHz data rates.
The W27 got ridiculously hot, so it's the oddity, not the W25. The W27 dissipated more energy as heat than some small amps. It had 9 layers of cascaded power regulation. The W25 doesn't do that. It has local regulation for each sub-section of circuitry on the main board. The W15 would be the same and runs cool as a result.
My W25 has better high frequency response than any of the W27s, as well as a number of high performance parts that could never be used in a production piece due to irregular deliveries or expense such as Black Gate caps and Vishay resistors. The DAC chips are matched.
As the unit was a project that was never released, no data sheets were ever printed. Measurements were taken during development while work was being done, however nothing was ever published.
The original Model 25 was a larger, more elaborate and costly version of the Model 15 and released approximately the same time. The 15 has much of the advanced technology contained in the 25 and has many of the 25 performance benefits as a result. My unit is 20 years old and has never required service which says something significant about Wadia build quality. This description of performance endurance then can be equally applied to any Model 15 and a purchase would be strongly encouraged.
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Follow Ups
- RE: used Bryston or Wadia DAC - House13 07:50:34 06/06/15 (0)
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