Solow73

Thanks for the suggestions. From a cost perspective, I'm now thinking a stereo receiver may be the way to go if I want to use the subs. I like the specs on the Yamaha R-N803D. A single pair of RF-7s running off the Sony STR DE-995 are plenty sufficient, so now I have to decide if I want to spend money to bring out more of their capability.

Hello, first post here. I've been doing some reading, but am having trouble making a decision. I got some speakers for free, so I am thinking about getting a new integrated amplifier. Here's my scenario... A family member asked me to do them a favor and take the speakers they are no longer using out of their house. I now have two pairs of RF-7s, two KW-120-THX subs, and the KA-1000-THX sub amplifier. I was also given the custom made speaker cables that look like heavy jumper cable wire. They are pretty nice speakers (especially for free), so I figured why not try and use them. This system is for my basement home gym. I only listen to it while on the treadmill, rower, or lifting weights. Sometimes my wife is exercising with me, so there may be two treadmills running at the same time or both a treadmill and the rower. So, I'm not seated in an ideal position looking for ideal hifi sound. We just enjoy loud good sounding music while working out. I have been using an old Sony home theater receiver (100w x 7.1) with a pair of Bose 601's. I used to have a powered sub hooked up to it until it stopped working. I only stream music to it from my phone using a cheap bluetooth adapter. It's been working great for years. I turn the volume on the receiver to about 98% of max and then just control the volume of the music from my phone signal. This system has been more than sufficient (and it was all free too). Since I now have the aforementioned Klipsch speakers, I decided to hook the two pairs of RF-7s to my receiver. The receiver has A/B channels, so I connected both pair of RF-7s. I can run either pair separately or both together. I have read running two pairs of stereo speakers is sacrilege, but it does sound a little bit louder and full (plus it looks cool having all 4 speakers sitting there). They easily play way louder than I need them to even with both treadmills going and the quality of sound is plenty good for gym music. I tried connecting the two subs and it turns out the sub pre-out on the receiver is what no longer works. The base from the RF-7s is fine without the subs, but I have those nice subs sitting there doing nothing, so why not get an amp that will allow me to use them. With all of the above said, that leads me into the "which integrated amp should I consider" question. I wasn't planning on upgrading my gym music system at all, but it would be fun to use all those free speakers. I have read plenty about the RF-7s really liking high power. I can afford a $1500 or $3000 amp to get higher wattage, but that would really be a waste of money considering my use. I was thinking about the Denon PMA-600NE. I would only be able to connect one pair of RF-7s and the two subs. I like that it has integrated bluetooth and the bass and treble control knobs right on the front and it's only $450. Do you think the 70wpc output of the Denon will be comparable to the cheap Sony 100wpc? Or, would you recommend something else (let's say up to $1000 in case I really need to pick something with at least 100wpc). I know that's a wall of text, but I wanted to be clear about how the system will be used. Thanks in advance for any suggestions.