get the Trinnov...
Hi MOZ,
have you ever heard the Trinnov EQ room equalization?
Having a look at their website
http://www.trinnov-audio.com, they seem to have focused on the professional and studio market so far - which would, of course, perfectly fit into Bryston's profile and history... Additionally, Trinnov EQ is - at least for now - more exclusive, compared to Audyssey, which is available in a number of mainstream brands.
Maybe Audyssey and Trinnov EQ can both be activated on a single or two separate prototype SP-3(s) so that Bryston can do some serious listening tests for which EQ solution sounds best in the SP-3 environment. Another question is, whether one of these EQ solutions can easily be stripped down to the frequency area below 200Hz, as James suggested. The TI DA-710 runs at 300MHz. If it's clock is being reduced to 225MHz, as James noted as an option earlier in this thread, the question is, whether there is still enough processing power for complex room EQ operations.
In the end, the sound quality is most important. If there is an unusual means neccessary for acchieving it (at least for Bryston), it still should be used. A few years back, I would have refused to have any Class-D amplifier or any equalization applied in my system. Since I have experienced the incredible improvements in bass performance that I acchieved with my Class-D driven, servo-controlled and heavily equalized Velodyne DD-15 subwoofer, I am open for digital room correction. The Onkyo PR-SC885P that I am using in my home theater right now has an integrated Audyssey-EQ and I have to admit that it is doing a very good job. I haven't done a direct A/B comparison to my SP-2 PRO yet, but I have the feeling that the Audyssey room equalization works quite well. Now, if Trinnov EQ worked even better, combined with the inherently superior Bryston analog technology - the SP-3 could be a killer product...

Let's see what Bryston is coming up with, regarding the EQ question.
Cheers!
Markus