"Hopefully all your speakers are set to small, 80 hz and all calibrated properly."

Absolutely yes, all speakers are set to small, subwoofer crossed over properly and calibrated correctly.


"My denon goes from + numbers to - numbers so 00 is my reference. Set your onkyo so 50 or 60 or even 70 as long as whatever number you choose, they all read 75db on your spl at your listening position. Now crank up T3 at reference level with NO SUB ON, (I now you like this tracks sound). Hopefully all your speakers are sounding loud and clear, if not either your speakers or your receiver is crapping out and you will have to decide which one. Lets assume the speakers and receiver are keeping up. With no sub on you might be thinking is this it, is this as good as my receiver will ever sound. Now add your sub to the mix at about 4 -7 db higher then the rest. Is it keeping up or is it mudding up the loud clear sound you had with your 5 speakers and receiver. I'm thinking that it may not be keeping up but lets just assume that it is, but barely. On all the low parts everything sounds good, but the loud demanding parts things may sound strained. When one thing in your system sounds strained, everything sounds strained. People always describe that you need lots of power to get the headroom (in your sound) you need so no parts in your system sound strained. The hardest most demanding piece in anyones system to achieve the headroom one needs is the subwoofer. It doesn't matter if you have a denon 1804 like I have or a denon 3805 or 4806, the sub will make or break your system. You add a quality more powerfull sub, you will get a more powerfull overall sound from your existing receiver and speakers as long as your receiver and speakers passed the first test, that they can play T3 loud and clear at reference level with no sub on. I'm rambling but I hope this helps. I sure hope you invest in a HSU or SVS or maybe even a Paradigm PW-2200 like I have, you will not regret it."

We'll I'll consider an SVS.......