We have been working on this for the past two and a half years and it is finally finished. My tech wiz, Rhys Davies, built the whole unit himself and wired it. We had lot of changes along the way but it works GREAT and we got exactly what we wanted. S/N -95.5 dBM, Distortion .0005%, Frequency Response 20 t0 20 KHz +/- .5 dB.