Question - Good A/V receiver for my new Klipsch F-3 & C-3

[gangan_2000]

Hi,

I recently purchased two new Klipsch F-3 (for front right & left floor speakers) and one C-3 (for Center). I am wondering which A/V receiver would be the good one for this speaker setup. I've no surround speakers now (not in the new future). My primary purpose is audio only (no video). For video, I directly connected my HDMI OUT to TV IN (for my HD-DVR & upconvert DVD player). And plan to connect the optical out from DVD player & HD-DVR to optical IN to the receiver.

I found the following used receivers that I am interested in my area:

Denon AVR 3600 - $375
Pioneer Elite VSX-36TX THX Ultra Surround Receiver 7.1 - $300

Any suggestion please?

Thanks in advance.

Gan