Been a pretty quiet summer. No major changes.
ScottG came and visited in July, and was suitably blown away
I had been meaning to redo the Audyssey measurements just for the heck of it, and as part of that, decided that I'd go ahead and reconfigure the DBX to be a bit more flexible in my crossover setup.
I had configured it using a 3x7 configuration for the three front channels and outputing 2 channels per input (for bi-amping) + 1 sub out.
This was so I could continue to dispense with bass management in the preamp if I wanted to.
But after research and education from the Audyssey CTO on inner workings of their process, decided that I'd be better served letting the AVP do all the bass management for the sub. Audyssey uses 8x higher resolution on their sub channel. Therefore if bass XO occurs prior, it benefits from that additional accuracy.
So, I reconfigured the preamp to have the following XO's:
L/R 60hz - Center, sides and rears 80hz.
In the DBX, reconfigured it as per the pic below.
basically a 2x4 for the L/R and a 1x2 for the center to support bi-amping the fronts. And since I've decoupled the L/R, I can now pick separate crossovers for the Monolith and SL3XC.
Monoliths are now at 250Hz, 24dB/oct LR, and the SL3XC is at 400Hz 24dB/oct LR.
The sub and the tactile transducer each have their own XO and effects queue.
The Sub has no XO set, and that element basically controls polarity. It does have a limiter set so we don't bottom out the IB and fry the drivers (I have about 2x more power than required to toast those suckers).
The various outputs have their delays and phase settings tweaked to two decimal places based on the precise measurements made with R+D.