I was torn between a new rcvr, or a sub, and I think people have helped me decide my newer Denon is just fine with the other options I was looking at. So, here is a question about subs, as well as my room layout. In the below image, the distance from my seated position to the wall behind the display is about 11ft, so it's a rectangular living room. Width is about 22 feet. The Sub-12 has served me well (see my sig for all my audio gear), but it's a budget based boomer, downfiring with rear port (I keep it from the wall pretty well), that I had to put on a pc of MDF to get better sound. Here are it's specs, and my options (these may not be all out there, but are my only current options for certain reasons), please let me know what you think: Klipsch Sub-12 [COLOR=FF00AA][COLOR=FF00AA](my current sub)[/COLOR][/COLOR] AMPLIFIER: BASH(r) digital hybrid AMPLIFIER POWER: FTC Rated Power: 300 watts continuous @ 1% THD, Dynamic Power: 650 watts DRIVE COMPONENTS: 12" (30.5cm) fiber-composite cone, down-firing woofer ENCLOSURE TYPE: Bass-reflex via rear-firing port FREQUENCY RESPONSE: 24-120Hz +/-3dB MAXIMUM ACOUSTIC OUTPUT: 117dB @ 30Hz 1/8 space, 1m WEIGHT: 40 lbs. (18.2kg) Velodyne DEQ-12R Class D Amp 225w RMS 14.6-240hz 61lbs 3/5yr warranty http://velodyne.com/pdf/deq-r/deq-12r_details.pdf Velodyne DEQ-15R Class D 750w RMS 14-240hz 75lbs http://velodyne.com/pdf/deq-r/deq-15r_details.pdf Definitive Technology SuperCube I (or II) 10" woofer with 10" low bass radiator 13 Hz – 200 Hz 1500 watts (I assume NOT RMS) 5 Years; 3 Years for Amplifiers 70 lbs Klipsch SW-311 AMPLIFIER POWER: BASH® Digital Hybrid DRIVE COMPONENTS: 10" (25.4cm) Active / Dual 10" Passive non-resonant Woven Fiberglass drivers FREQUENCY RESPONSE: 22Hz-120Hz ± 3dB WEIGHT: 37lbs (16.8kg) Thanks again for any input, I'm kinda leaning towards the 15" Velodyne, but Im not sure if it's "overkill" with my setup, or if that is possible? The Supercube I also has my eye.