A Sony TA-N80ES works fine with mine. The pre-amp is the matching Sony TA-E80ES. At 4 ohms, this amp is rated at 270 wpc and has "dynamic" ratings down to 2 ohms. They typically range from $500 to $900 used.
Of course, I'd love to get another N80ES and used them in bridged mode as monoblocks.
The Vintage Knob has a nice writeup:
http://www.thevintageknob.org/SONY/sonyes/TAN80ES/TAN80ES.html
Of course, I'd love to get another N80ES and used them in bridged mode as monoblocks.
The Vintage Knob has a nice writeup:
http://www.thevintageknob.org/SONY/sonyes/TAN80ES/TAN80ES.html