Pragmatist: I hope you understand the point that i was trying to make as my post was not meant as an attack on you personally or the information that you provided. I thought that the effort that you put forth in responding was very kind and covered the basics quite well. What i was getting at is that math and various formulas can be very helpful in predicting accurate results, but only when you factor all of the variables into the equation.
Busaganashi: I think that most people would find a quality 250 wpc amp with 90 dB speakers to be plenty of power and capable of attaining SPL levels that are more than enough in the size room that you mentioned. On top of being a bit of a nut, i also tend to push things noticeably harder than most folks. As such, i try to figure for worst case scenario, which pretty has one covered under any circumstances.
If you have the opportunity to audition the amps that you were considering in the confines of your system in your listening room, i would by all means do so. Otherwise, i would be relatively confident that a well built 250 wpc SS amp was up to the task at hand for someone that was slightly more sane than myself. You might be able to get away with a slightly smaller tube amp due to the differences in sound quality that they produce under stress. Most SS amps tend to get hard and grainy if pushing them whereas many tube products remain musical, but get a little sloppier. The fact that your speakers are of reasonable impedance and not highly reactive also helps things out a bit : ) Sean
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