Thanks, Jerry. Hahaha - yes, BFD has a new meaning!
As far as their PEQ sections go, I believe so. But I’d expect the MiniDSP to be more flexible in that it is software controlled. Both can be controlled by REW and REW can create filters for both in the EQ section.
I have read that the idea is to use as few filters as you can get away with, so having just two in operation seems OK to me. Given that I am only using such a small number of filters, I'd imagine that both units are functionally similar for the purpose I am using them for. One thing I like about the BFD is that I have 24 channels of PEQ to play with (12 for each sub) so I can experiment a lot and always come back to the regular setting just by turning a dial. I assume the MiniDSP is the same. Great flexibility and it allows one to try different things knowing one can always revert to the 'tried and tested' setting. The BFD also has a bypass (IN/OUT) button so it is very easy to compare the PEQd response with the straight Audyssey response - just press the button and listen. Again, I imagine the MiniDSP can do the same.
The MiniDSP HD units have six PEQ channels per output (sub) to tweak, not 12. But in practice that should be enough if you're using filters judiciously, especially post Audyssey or the equivalent. That can be expanded if you use the six PEQ slots at the 'input' sub level, and also use the individual six PEQ slots each of the sub outputs. Whether you should do that is a different question, depending on your room and measured results.
The outputs - which can dynamically be grouped to clone settings, such as for equidistant subs - also allow high and low pass filters, which can also be utilized to create low or high shelf adjustments to tailor a target curve.
On my 10x10 there's four presets, which you can change via the onboard control 'pot' - which I've found kind of sluggish - or the PC software, once you connect a USB cable and sync the app to the unit. I keep one of my presets free of PEQ or other filters for testing, but you can do the same thing by manually bypassing, or loading a 'clean' filter file.
Edited by sdrucker - 1/28/14 at 12:34pm