The top 3 models of the Crown Drivecore series are quiet, cheap and sound good with gobs of power. They can drive 2 ohm loads so you won't have problems driving whatever difficult speakers you might be reviewing. Just turn off the limiters and crossovers and don't overdrive your speakers.
I think this is a better way to go, rather than getting something underpowered (not versatile if you keep changing speakers) or old (that will need maintenance)
http://www.crownaudio.com/amp_htm/xls_drivecore.htm
I think this is a better way to go, rather than getting something underpowered (not versatile if you keep changing speakers) or old (that will need maintenance)
http://www.crownaudio.com/amp_htm/xls_drivecore.htm