"Official" Audyssey thread (FAQ in post #51779) - Page 2528 - AVS | Home Theater Discussions And Reviews
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post #75811 of 75813 Old Today, 01:13 PM
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Blind Faith....
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post #75812 of 75813 Old Today, 01:28 PM
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Just purchased 2 Paradigm Monitor SUB 12's. I have the PBK kit as well but was waiting to break the subs in before performing the calibration
Paradigm Monitor subs have the previously mentioned SUB IN/LFE IN (L) jack. Try to use that input with your initial setup and then run MultEQ without the PBK kit and see how it sounds to your ears. Report back, please.
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post #75813 of 75813 Old Today, 01:32 PM
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Chris K. in post # 22593:


"The analog phase control knob on the back of the sub is basically, well... useless. It only operates on one frequency and often will cause more harm than good by introducing group delay. I highly recommend leaving it at 0.

The problem of summing two subs is a complex one. What we found is that it is best to first time align them either by digital delay or by placing them at the same distance from the listening position. Then, you need to level align them. After that, the best results are obtained by summing the two subs and creating a single room correction filter for the time- and level-aligned combination.


If it's not possible to place the subs at the same distance, then just feed them with a y-cord from the AVR subwoofer output and let MultEQ try to correct the anomalies due to phase (time) and the room."

Alan ain't gonna like this!

I actually completely agree with Chris K's quote with the exception of what I bolded.

However, in real-world situations, placing multiple subs equidistant to the MLP is just not possible and not everyone has time correction ability, soooo.....we must resort to using the phase control.


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Originally Posted by Dbruce13 View Post
So what is the general recommendation for the phase setting with running 2 subs? Still set to zero or is there some other method for tweeking?
What AVR do you have? Does it have the ability to set distance for two subs (i.e. Audyssey XT32 w/SubEQ HT)?

If not, have you considered acquiring an outboard box to properly time-align the subwoofers (i.e. MiniDSP)?

If none of the above and your subwoofers are going to be differing distances from the MLP - while playing your AVRs pink noise sub cal tone, adjust the phase control on one of the subs until you get the highest SPL at the MLP. This is the best you can do without proper time-alignment (IMO).


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Blind Faith....

Love me some Blind Faith.


AVR: Denon 4520ci, FL/R: Klipschorn, CC: Klipsch RC-64ii, SUR: Polk LS/FX x4, FH: Klipsch RB-51ii x2, SUB: PSA T-18 x2, DISP: Mitsubishi WD-73740, BluRay: PS3 & BDP-S5100, Remote: URC MX-700
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