I owned the exact system you describe OCM 500 with Alon IV. I then changed the speakers to Dunlavy Aletha. I have since changed quite a bit. The OCM I had for over 5 years. The amp is good, the AC polarity should be inverted in order for it to sound better. Now a days there are probably better amps, but this is a pretty good one. To take the next step you have to get much better. I now own a Rowland model 10. It is more musical and has a litle more detail. But it took a new front end to realize its potential. In order to apreaciate a better amp I would recomend analog, or a realy nice digital rig. I do not necessarely mean expensive, but good. Hope this helps.
