Most any recent vintage, decent, jitter resistant vintage transport, CD or DVD player, or other digital source with digital output feeding an mhdt Constantine DAC could meet your requirements. I use a 4-5 year old Denon player/recorder that cost $600 originally with mine and have also used a 6 year old Marantz DVD (see my system listings). A used mhdt Constantine can be had for well under $500 used.
An mhdt Paradisea tube DAC might do it also but might be a tad warm for your requirements with the stock GE tube on many systems. Other model inexpensive replacement tubes can remedy that if needed.
An mhdt Paradisea tube DAC might do it also but might be a tad warm for your requirements with the stock GE tube on many systems. Other model inexpensive replacement tubes can remedy that if needed.