Quote Originally Posted by Stereomaniac
Are you sure you are talking about the right Polks? The RTi8 is rated at 20-250 watts per channel at 8 ohms and 90db sensitivity. I was previously driving Phase Technology 845s which were a 4 ohm, 93 db speaker with no problems. I don't think they should be too hard to drive.
Yup. On paper they seem pretty easy to drive, but last year I got a chance to hook up different amps with the sales reps at Tweeter (local mid-fi shop). The RTi8's sounded noticeably better driven by a dedicated 200W B&K amp, than with any of the multi-channel receivers which put out someowhere between 80-120W. Maybe the power rating is not so much the determining factor as the quality of the amp, but is was quite noticeable.

I've also read online that a common complaint about these speakers not measuring up, is a result of poor amplification. Those Polks will want all 250W they are rated for and sound much fuller and powerful with a good solid amp.