Absolute top tier DAC for standard res Redbook CD

I was speaking with the guy at Von Schweikert who sets up their rooms at most of the shows about my concerns/issues. He said that he hears it all the time and it has to do with unbalanced pressurization of the room when it's a smaller room. The large rooms at shows don't have this issue.

I have not tried it yet, but he suggested I add a sub to the room connected in series from the amps to speakers (high output terminals). He specifically said not to pull the signal low level from the pre-amp. He said to put the sub behind the listening position in the back of the room to balance the pressure in the room, adjusting the output so its not even audible but enough to offset the main speakers output pressurization.

I'm away for a few days but when I get back, I'm definitely going to try it.

Thoughts?

I have also been advised by a room design guy to consider this:

http://www.bagend.com/products-category/active-bass-trap/

It's a Bagend active Base Trap.

"it looks like a small subwoofer without input termi- nals. Fore and aft are two small micro- phones; either one can supply the input to, effectively, two single-band paramet- ric filters (range 20–65Hz) that add tar- geted resonance peaks to the feedback circuitry that powers the driver. As a result, the input signal at those peaks is amplified and output via the 10” driver but, cleverly, opposite in phase to that of the input. Place the E-Trap in a high- pressure zone, such as the junction of two or three room boundaries, and its output will oppose and cancel the nodal energy in the room"

If the room is over pressurized, how does adding more pressure solve the problem? I'd look at taking the room out of the equation, as well as the crossovers. I have not ever heard box speakers sound good in a small room. Matt, try external crossovers - that will really open up your world of choices for time & phase coherent accuracy as you'd be doing it yourself. You need to take control, brother. This will consume you.

Not over-pressurized. Just pressure imbalance.

Don't know. But it's worth a try....

I don't have the fund of knowledge to start tuning my own external crossovers. But thanks for the complement and the idea.

Don't get me wrong guys. My room is awesome. But I have a few issues that, once under control, will really make that last little bit shine. Isn't that what we are all after, the last 1/10 of 1%?

Hmmm, "Fixing" acoustic anomalies by applying subwoofers out of phase to perform destructive low band-pass interference... Fascinating... Sounds like fighting a fire with... Well, fire.

Might work to a point. Yet, I am skeptical about the long term appeal of the end product... Seems a one-way route down an endless audiophrenic rabbit-hole.

G.