So I thought I'd post the good news that you can now upgrade your Duet - at least in the UK 1st4audio will mod your duet - I quote from the description of the work they will perform on your duet (see their ebay.co.uk site for more info)
"The Digital Upgrade Starting with the DC input we install a Bybee Slipstream Quantum Purifier to reduce noise on the incoming power supply rail. The DC input rail is bypassed with a general purpose capacitor, this is upgraded to a Sanyo OS-CON SP type. OS-CON capacitors are characterised by lower ESR and ability to handle higher ripple current than their wet electrolytic counterparts. Low ESR is so important in electronics because the lower the ESR the faster the capacitor can discharge. This is a great benefit because it means the capacitors can respond faster to current transitions. The digital upgrades continue with improvements to the local decoupling for the clock & DSP circuitry, the stock unit uses only surface mount capacitor to decouple the data processing and logic chips so we add OS-CON decoupling to lower noise and improve transient response. For the digital output itself it is back to the Bybee filters where we add a Slipstream Quantum purifier at the digital output to improve the quality of the digital signal. The finishing brush strokes are made by installing Sontech SFRT-AL resonance control. This is a specially designed visco-elastic material which removes vibrations across a wide bandwidth ensuring the sensitive components inside the Duet are free from noise. Price = £119.62" This will apparently result in: "Switch to the digital output in to an external DAC and the improvements in sound are clearly manifest. Similarly to the analogue outputs, here we find a marked reduction is noise in favour of a more open, cleaner and sweeter sound. Detailing is also better, you are able to hear sounds that were previously buried in the mix, the music being more relaxed, less grainy, less strident. Improved detail." Anyone had it done and care to comment... gandt -- gandt ------------------------------------------------------------------------ gandt's Profile: http://forums.slimdevices.com/member.php?userid=586 View this thread: http://forums.slimdevices.com/showthread.php?t=52478
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