Pick up a pair of used Adcom GFA 555II's and run them bridged as monoblocks. They last forever and you can have them bench checked and replaced the 4 main capacitors for about $30 each if necessary. A lot of people modify them to perform as well as a Bryston and other way more expensive amps.
The ADCOM GFA-555 II is among the world's greatest audio power amplifiers of all time. It was designed by the legendary Nelson Pass, whose Pass Labs amplifiers today sell new for five figure price tags. Considering that you can get a used GFA-555 II on craigslist for about $250 - $350, it would be hard to find a better bargain for high-end amplification.
200w x 2 @ 8 ohms .04% THD
325w x 2 @ 4 ohms .04% THD
600w x 1 @ 8 ohms .09% THD (bridged)
850w x 1 @ 4 ohms .09% THD (bridged)
Stable to 2 ohm loads
While only rated for 200 watts per channel into 8 Ω, it easily put out 260 watts from each channel simultaneously at only 0.007% THD into 8 Ω. Measured with tone bursts, it easily put out an undistorted 370 watts per channel into 8 Ω.
That's about $700+ total for two mono block legendary amplifiers putting out 600w to 850w per channel
BTW, I ised to have Bose 901's with a Phase Linear Amp and PreAmp back in the day. People on AVS like to bash the Bose 901's but I liked the big wide sound field they created. Plus frankly, I was young and hadn't heard anything better. That being said, I have to agree that they really do sound distorted and you can have the same effect AND accurate sound.
I sold my 901's once I discovered Magnaplanars and electrostats and other dipolar speakers. They easily create the same wide sound stage but without all the distortion inherent to the Bose 901 design. When you bounce sound off a wall you roll off and muddle the sound because you're basically listening to 1st and 2nd order room reflections without the direct waveform from the speakers. Yes, the Bose EQ unit tries to put back what was lost and get rid of the aberrations that were created, but it's not the same as just reproducing the original signal.
Used Magnapan speakers can be picked up on audiogon for very reasonable prices. There's a pair of MG III's listed right now for $900. Give them a listen and you's never go back to Bose ever again.