Pass labs if you can find one that’s not over 5 yes old in your price range.
2nd would be Parasound Halo A21 - simply Superb! Got 3 of them!
3rd would be "ClassDAudio" SDS 470C - AMAZING SS + TUBE sound for $700 (1st if you consider the value) - it can drive anything well. Use it the most.
http://www.classdaudio.com/sds-series-amplifiers/sds-470c-class-d-audio-power-amplifier/
2nd would be Parasound Halo A21 - simply Superb! Got 3 of them!
3rd would be "ClassDAudio" SDS 470C - AMAZING SS + TUBE sound for $700 (1st if you consider the value) - it can drive anything well. Use it the most.
http://www.classdaudio.com/sds-series-amplifiers/sds-470c-class-d-audio-power-amplifier/