I have a pair of D-4 era's hooked up to an ARCAM AVR350 using silver alloy wire. They have a large, clear sound stage. The highs are smooth and the midrange has a quick, easy fluidity- like liquid. They took 150 hours to break in. The only drawback is that the lower range is not fully present- as with most small monitors. These are speakers that you can listen to for hours and hours.