Originally Posted by jrhooper1963
5370 Posts? And most seem to have to do with setting up ARC room correction? Way too complicated! This hobby is supposed to be enjoyable! Audyssey is the only way to go.
Who said complicated isn't enjoyable, actually I now enjoy ARC more than my previous Aydyssey because it got me to learn, use my brain and correct better for my room using all tools at my disposal (ARC, sub, furnishings,...)
Originally Posted by Bob Pariseau
^ Gosh! You've actually counted?
on the topic, and that is accurate
Originally Posted by Roger Dressler
..., but does ARC correct the trough any better when the 40 Hz peak is reduced?
No, and that is why I thought peak correction affects the sub corrected response and that both events were correlated! So I set out to prove my theory, see below.
I did few experiments to characterize my sub freq response, ARC behavior as it all relates to my massive room mode (peak at 40hz).
: I placed the sub in the center of my room, and placed the ARC mic 1ft away, which is a quick dirty method to measure its frequency response in a location that doesn't suffer from a resonant frequency, and it is almost flat from 30-200Hz.
Compare that to its anechoic chamber response (Thanks SVS)
: After exchanging few emails with SVS, where they advised me NOT to use the PEQ on the SVS, it turned out that the PEQ on the SVS was intended to reduce peaks and not boost.
So I set out to do some Q math, and didnt succeed in having good results, it turned out SVS Q, LEVEL knobs on the single PEQ were a bit non linear, as well their center frequency and Q math is un-orthodox.
Again (thanks SVS), they provided the pdf manual for this 10 year old sub, that showed how they calculate center frequency and Q and I got working. Here's the result of the SVS sub PEQ correction (blue waveform)
: Used ARC calibration, and true to my theory, because the peak was such a high peak, and now that it has been reduced by the SVS PEQ, ARC provides a nice sub correction with cutoff freq at 225Hz !!! which essentially reduced much of that dead zone aka "trough".
So yeah, complicated, but in the end, I have a better calibrated system, that I believe sound better and more accurate