Absolute top tier DAC for standard res Redbook CD

What are your thoughts on speakers who integrate powered subs below 100hz so you can dial in the bass after you set the speakers up to sound their best for the mids on up? Personally, I've never heard separate subs integrate fully with monitors and I have always LOVED monitors. I personally have liked some of the speakers that integrate them and voice the amps to take on the sound of the main amps someone is using in their system.

Cstooner, did you ever try TBI subs?

No. If I were to do subs, I'd do the matching Vandy subs as they are set up to work properly with the Treo's. I hate to say it, but I've never heard a sub integrate properly. I know so many swear by their usage and I'm sure that there are plenty of you who have them set up perfectly. I've just yet to hear it. I also feel that the majority of dealers really don't know HOW to set up a room. I know that even the top dealers will often have problems setting up their rooms because folks come in all the time and touch stuff and actually move things. I've seen customers in a very high end boutique start to tip speakers to see their spikes or something. They don't realize that will throw off everything. Winson, please share more about the subs.

Very fast woofers

Jan Plummer knows his stuff.

http://tbisound.com/dsp_products_subwoofers.asp

http://tbisound.com/dsp_sound.asp

Now with TBI™ Bass Extension Modules you can match the speed of your mains precisely, with the room having a positive - supportive effect on the results. The driver is acoustically shielded from reflections allowing the room to support the bass in a positive way. Low frequency room treatments are typically unnecessary for a properly set-up TBI bass extension system.
The very low mass driver requires little diaphragm travel to produce long wavelength signals in this patent pending design. This combination of attributes provides a platform for fast launching of the low frequency waves. The hybrid alignment combines the best attributes of reflex and transmission line models and is the result of extensive research and development. The resulting products are setting a new precedent in objective bass quality and uniformity for high quality audio systems.
You will find a product compatibility chart at the bottom of each product page that will give you some guidance in choosing the right bass extension setup for your high quality audio system.
TBI and Vinyl

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?