Originally Posted by Sittler27
Ok, been running many REW measures and have attached below three comparison measures between what Audyssey XT32 came up with and with what I managed to tweak with Audyssey off and REW.
In summary, I essentially did the following:
1. lowered my two subs' volumes by -2db each
2. changed LFP for LFE setting from 120Hz (Audyssey set) to 80Hz
3. dropped individual speaker crossovers as follows:
Front 60Hz (Aud had this at 150Hz)
Center 60Hz (Aud had this at 80Hz)
4. Added two PEQ settings on each sub. 1st setting lowers 56Hz centered wide range by -12db; second setting lowers 56Hz slightly less wide range by -12db (so two PEQs basically doing the same thing)
Let me know what you think in regards to an improvement.
As AustinJerry said, I have a tough room.
Originally Posted by AustinJerry
What is your understanding of what lowering the LPF for LFE does? This setting only affects the LFE channel, which on a typical movie recording will contain information up to 120Hz. Lowering the LPF for LFE simply "throws away" any content above 80Hz--it isn't re-directed anywhere. And it certainly has no effect on the measurements that you provided. So, leqve this setting at 120Hz where it belongs.
HST, the non-Audyssey measurements do look slightly better, although both sets of measurements leave room for improvement.
So, what happens when you leave the PEQ settings in place, and run Audyssey on top? Surely it doesn't make things worse, does it?
Ok, finally got around to taking the measurements you were wondering about.
First of all, I put LPF for LFE back to 120Hz.
Next, I re-ran REW measures for L/C/R channels using the initial Audyssey run I had done with the comparison measures I had posted previously. This was with no PEQ set.
These you see in red above, with one caveat: I lowered my sub's volume (directly on the each sub) from what Audyssey needed me to have to register the sub (-2db) to what I felt was less boomy (-8db). More on that below.
Then I did a bunch of re-measures with REW to set my two PEQ settings on each sub (PEQ 1 and PEQ2)
I also found leaving subs at -8db (again, sub volume not AVR volume) was best.
Then, I re-ran Audyssey XT32 again (8 measures) with the provided mic with my Marantz SR7010.
The resulting measures with REW was worse than what I had adjusted with PEQ before, and the required -2db for Audyssey to work was too high again.
So I lowered the subs volume to -8db again on each sub, and played with the PEQs to get the best curve (slight adjustments from step above) to finally arrive at PEQ settings as follows:
PEQ1: 40Hz, -8db, Q:5.7
PEQ2: 56Hz, -10db, Q:7.2
So in summary:
Red = initial Audyssey measure with subs at -8db
Green = post PEQ adjustments Audyssey measure with subs still at -8db
Feedback is appreciated, but I'm not sure what else I can do here.
So, as an aside:
When I run Audyssey it asks for me to boost my subwoofer dials' (two subs) to -2db in order to even register them to take part in the Audyssey measure.
Then REW measures prove this is just way too high (so do my ears, as bass is too boomy).
So with watching REW measures, I set it at -8db as mentioned above...but, is this ok? Why doesn't Audyssey recognize this? Am I throwing off things lowering the sub volume (on the subs themselves)?
Almost forgot, so upon making the PEQ adjustments, Audyssey lowered my crossovers to what I feel begins to approach accurate for my speakers.
Initially, it set it as follows (left) and (right) is what it now set it to after the two PEQ adjustments on each sub.
Fronts: before 150Hz, now 120Hz
Centre: before 80Hz, now 40Hz
Surrounds: before 120Hz, now 110Hz
Rear Surrounds: before 200Hz, now 150Hz
Top Middles: before 150Hz, now 120Hz
Now, I measured my fronts on their own with a Sine sweep measure and confirmed the ~-3db drop on the measure (LF, RF alone) is around 60Hz, so even the 120Hz by Audyssey still seems too high for them, but better than the pre-PEQ Audyssey setting of 150Hz.