I just picked up a few goodies last night.

HK - AVR130
pair of Polk RTi70's

I already had a 10" KLH Sub.

I've heard lots of people say not to use the subout on receivers, so I didn't.....but when I wire everything up to run wire from the amp to the sub then to the RTi's. Everything loses bass it seems., SUBSTANTIAL BASS.

I usually keep my sub on about 25% but I had to turn it up all the way to get probably half the same output.

The Polks can handle 50-250 watts

The HK puts out 50 watts X 2 and 40 X 5.
Am I under powering them? Should I just use the Sub preout? AND does anybody know if the HK-AVR130's subout is a TRUE preout? or is it filtered?

THank you so much, anyone who answers

Chris