Hey guys, I recently bought an STA-2290 that I've been pleasantly surprised by. I was quite surprised by its midrange clarity, tonality, and soundstaging, as well as its midrange presence, yet by doing so without being harsh or fatiguing to listen to. I have to admit, I wasn't sure what to expect from this receiver, but it's aquitted itself very well indeed. It's certainly one of the best receivers I have owned. However, I have not been impressed with its power (or lack thereof), and also with the fact that it tends to run hot. Despite that, the sound of this receiver has made me want to try other 100 watt Realistic receivers from the 1980's, as I have read good things about some of the models from this era. I have been looking at (and comparing) the following models: STA-2290 STA-2500 STA-2600 STA-2700 However, my questions are: 1. Of those four models, which one(s) is known to have the best sound quality. Overall, this is the most important consideration. 2. Are any of them more powerful (and I don't just mean what's on paper) than the STA-2290? 3. And do the other models run cooler than the STA-2290, or do they all run relatively hot? Any experience or sage advice you have to lend would be greatly appreciated. Cheers.