Originally Posted by mojomike
Wow. There are a few surprises there.
By far, the flattest are the MFW pair.
The Cap S pair is so very un-flat.
The Cap Pro's actually out-SPL'd the Orbit Shifters.
Remember the curve you see is what Audyssey did to the response for the 5 mic locations used, and the graph shown is an AVERAGE of all listening seats. This means some seats were stronger at some frequencies and some seats were lower at other frequencies.
That said, to my ears these response curves were not terribly surprising. The only response curve I saw before now was the Captivator Pros and the SubMersive HP which I saw after the SubMersive's demo. It was amusing that I went back to Archea and told him it sounded pretty good, but if I was dialing this in myself I'd probably tilt the response up 4-6dB on the bottom. He then showed me the response:
The MFW-15s did sound very smooth and balanced, but not as intense, and the Orbit Shifter sounded a bit more aggressive/thumpy on the kick drums than I'd prefer. Interestingly, the MFW-15s were operated as only a single channel as they only used one amp to drive the 4 drivers/2 boxes.
Audyssey did do a good job of minimizing the most obvious sonic signatures of the different subs and sub types, and the same exact process was used for each sub. As Archea noted in his first post, the comparison was what it was, and a valid attempt within the limits of using Audyssey as the calibration tool, just as many enthusiasts might.
In order to do something like this with even higher precision matching, you would need a full day of setup to EQ every sub and save the settings before hand, and someone performing the EQ that was comfortable being under the microscope on the exact process by which they applied EQ.
Of course such a comparison would be less informative to those who don't measure and make certain that every sub in their system has the identical response...
While I know most enthusiasts haven't beat on enough subs of various design types in the same room to know what different qualities become audible, even apart from the frequency response at the listening position. It was very easy for me to hear the sonic fingerprint, especially when pushed a little, of the SubMersive HP & MFW-15 subs which I designed and knew very well, as well as the Orbit Shifter as Jeff & I tamed more than a few beastly bass horns in home theaters back in our ServoDrive days.