I have a denon X2800H. I have had some mind boggling experiences with subwoofers. I will try and keep it quick and simple. I bought a klipsch r-120swi with my brand new home theater system just to have quick cheap reliable subwoofer and quite honestly it was great but with the power I got from this cheap junk subwoofer it made me want something obnoxious. So I bought a RSL speedwoofer 12s and it came in I was hyped plugged it in and it had nothing on the cheap klipsch. Myself and everyone within RSL worked vigorously to solve this problem and we were never able to do so. We did everything we could to get the raw power it was supposed to deliver and I just wasn’t able to ever get any power from the subwoofer. It was returned. Ordered a Tonewinner d4000 same size sub just bigger amp. It was indeed louder apon plug and play but it was still week and I still preferred the cheap klipsch. The owner of Tonewinner is amazing with customer support he has also done everything he could to help. The last thing we tried was the svs wireless triband. That brought the subwoofer to life. Completely night and day difference my home is rattling just like I had hoped. But it really bothers me I can’t get that same power when I connect things with the cable. Does anyone have any idea why the hell a wireless connection is kicking the wired connections ass. It’s so frustrating because I want to run the cable to avoid WiFi interference but the power is just weak with the wire and I can’t figure it out.