audyssey multeq xt32 Flat vs Reference

[BFL]

Question...if i am using the App and close the curtain down to 500hz, is there a difference between the 2? From what i understand, Reference rolls off the highs, but since im bringing the slider down to 500, is there any other difference. I also turned off Mid range compensation for all speakers.

I also ran REW for the 1st time trying to find my Mains/Subs Crossover pt. If i did it right it, it came down between 80hz and 90hz, so i set if for 90hz. Originally i had it set at 60hz. Until i can run REW again for my other speakers, i upped my center to 100hz and my surround speakers to 110hz.

 

[ReverendSlim]

If you have a curtain at 500Hz, the only difference I can think of between Reference and Flat might be in the way Audyssey handles averaging. But with MRC off, it should reference the averaging against 1kHz, so I don't know that the rolloff of Reference would be close enough to affect it even IF it were being applied (which the curtain would effectively prevent). I would say there would be little, if any, difference in that scenario.

 

[BFL]

If you have a curtain at 500Hz, the only difference I can think of between Reference and Flat might be in the way Audyssey handles averaging. But with MRC off, it should reference the averaging against 1kHz, so I don't know that the rolloff of Reference would be close enough to affect it even IF it were being applied (which the curtain would effectively prevent). I would say there would be little, if any, difference in that scenario.

thanks for the reply...i think i just left it on Flat for now.

 

[lovinthehd]

I do wonder if you limit eq to 500hz but still use the reference curve, you'd still get the roll-off of the highest frequencies or by using the app does that get overridden since it is beyond the range of the eq limit applied? Do you also lose the MRC/BBC dip if so? Tuning in to see if there's any detail....but I haven't looked that much into it, only recently got use of the app in a newer avr.

 

[ReverendSlim]

I do wonder if you limit eq to 500hz but still use the reference curve, you'd still get the roll-off of the highest frequencies or by using the app does that get overridden since it is beyond the range of the eq limit applied? Do you also lose the MRC/BBC dip if so? Tuning in to see if there's any detail....but I haven't looked that much into it, only recently got use of the app in a newer avr.

It effectively overrides anything above the curtain because it removes any filtering above that point. You can see it in action in MultEQ-X. The reference rolloff and the MRC still show up as a target, but when you look at the actual filters applied, the curtain has negated anything above that point.

It bears mentioning that if you ARE using a curtain that way, I would say that you need to do a post-cal check of level matching using external tones. Audyssey bases its level-matching (and averaging on the speaker channels) pretty specifically on the response at 1kHz... so if there's some variance at that particular point in each speaker's natural response, you may end up with a bit of level mismatch.

 

[BFL]

Good info.. I will recheck it