This is a fantastic vintage DAC, the tried and true Parasound d/ac1100. It has been upgraded with genuine matched PCM63P K Grade Chips (original J grade) and the Audio Tuning Digital Receiver and Filter boards which give it 24/48KHz capability. The original chips and manual are also included.Condition is excellent except for some very minor scratches on the top case which were picked up only recently :( My asking price is $350 shipped CONUS, no original box but I will make sure it is packaged well. Just some side commentary here. The PCM63P K chips were pulled from an EAD DAC so you can be sure of their authenticity unlike what I've seen on eBay. The Audio Tuning boards can be found here and are also not cheap: http://www.ebay.com/itm/Digital-Upgrade-24bit-48khz-Parasound-DAC-1100-DAC-1600-/161737756053?pt=LH_DefaultDomain_0&hash=item25a8524d95
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