I finally got a set of speakers that really show this amplifier up.
That's it and here is a link to the specs:
Anyway, I was at George's house last night auditioning speakers from his abundant stash. I was fearing not being able to find anything decent that this amplifier could power well enough. Boy was I wrong! This amplifier handled every set of speakers we threw on there with aplomb. I still have not been able to push its limits. The transformers for the speaker channels have never even heated up with 8 ohm loads and being driven at literally 100% volume levels. Yes, 100% volume levels. I was powering my dad's Electrro-Voice speakers with this amplifier and my brother and I were listening to the cleanest and clearest sound I have ever heard from any amplifier running balls-to-the-wall, all out like that.
I am going to create enclosures for a pair or Pioneer 4 ohm speakers and see if I can push the amp with a 4 ohm load.
I also mentioned previously that the potentiometer for the volume control might be bad. While I still think it is, I do believe that a good portion of the noise is due to the signal source. I have been using a Sony Car-Discman and the signal seems to be dirty. I hooked the amp up to a CD Changer George had last night. I think it was a JVC, I can't remember. However, there was considerably less noise than with the Discman and it leads me to believe that the Discman is a dirty source. I will have to find a CD player for this system. Maybe a cheap pre-amp and tuner too?
As for the amplifier itself, I have seen iffy reviews concerning this amps quality levels. I have to wonder if those who are disappointed with the amplifier have assembled it well or even correctly. It is a very efficient design and it is very clean. Much cleaner than I thought it ever could be. Especially since I put it together myself. I have to say that this amplifier, for $140 and a couple hours worth of your time is one hell of a steal. Defintly a diamond in the rough. If anyone is looking for a cheap amp for any reason, this is certainly one to consider. I am becoming more and more pleased with it as I play with it. I can't wait to get home from work and play with it some more with the speakers I grabbed from George last night.