Originally Posted by jsil
There is no cut off point like the Yamaha with EQ the sub.
The 7550HD uses 100Hz as the X-Over point for the subwoofer, but its real intelligence is based upon the designated sub size. The Harman R&D team programmed many subwoofer specs considering size, enclosure type...
When (2) subs are selected, the DSP measures power response within the room of each and then merges
the data considering the listener's position.
If different sitting positions are used for music & HT then save each individually as a preset.
The strength of EZSet/EQ II was developed after multiple testing done by Dr.Toole's team, and it try to flatten the low frequencies (<200Hz) nodes/resonances by pulling down the peaks rather than boosting each side of the hole. Its end response is very subtle, smooth & solid but not boomy..
Another neat thing is its LFE level in addition
to just the subwoofer level.
I don't like to make comparisons to other EQ schemes but we have installed many AVRs with Audyssey, plus we have the Audyssey the Pro Kit but we still prefer EZSet/EQ II. But here again we recommend that each user try each for themselves..
Just my $0.02...