Anyone know how to set up Rythmik subwoofers on an ARCAM AVE550 receiver?

So have Brian Ding send you one Rythmik, and see if it's boomy. But here's something you need to be told: if you hear boomy sound from a sub in your room, the boom is more likely to be a result of the interaction of the room and the bass frequencies you're pumping into it, not the sub itself. How are you going to know what is the cause of the boom?

I think you need to buy a sub from a dealer who can help you with placement and other integration issues. Subs are tricky, and it sounds like you don't have the experience to do it yourself, whether the sub is a REL, a Rythmik, an HSU, an SVS, or any other make. No offense, Larry!

I'm trying to help you Larry, but you're not making it easy ;-) .If Rythmik didn’t sell direct-to-consumer, the price of their subs would be at least twice what they are now. It is not the only hi-fi company doing that, ya know. So does HSU, and most of SVS’ sales are direct.

Larry, you say you heard the REL and wasn’t that impressed, right? So buy a Rythmik already! You’ll never know what it sounds like until you listen to one. If you like it, keep it. If you don’t, send it back. Damn, you’re making this WAAAY too hard. It’s only a sub, not a fatal disease ;-) .

A week or two back all you could talk about was Brian Ding’s PHD, how brilliant he is, and how Jim Salk told you a Rythmik was the way to go. What happened to that Larry? It sounded like you were ready to put in an order for a Rythmik or two. Has something changed your mind? If you heard a REL and wasn’t impressed, why are you still considering one?

Since RELs are so highly regarded amongst audiophiles, try and find a used one you can get into your system. If you don’t like it, it should be easy to resell with no loss of $. I don’t know what it is you’re looking for, but lots of pretty-picky audiophiles are very happy with their RELs. And so are Rythmik owners. The ultimate solution is to get one of each in your listening room, and compare them for yourself. No one can tell you which one you will prefer---you have to do that for yourself, just like everyone else. Grow a pair, fer cryin’ out loud!

Wait, what? Larry, you consider the Rythmik a "conventional" subwoofer and the REL not? You really don’t understand, do you?!

How many times are you going to come on here and ask everyone whether you should get a Rythmik or a REL? If you’re having this much trouble deciding, and still don’t understand the Rythmik design, I would just forget about the whole thing and be happy with your sub-less speakers. You’re over-thinking this, and still not understanding. I’ll bet whichever you got, you would be consumed with the nagging fear of having chosen wrong.