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Forum: Receivers, Amps, and Processors   08-29-2014, 03:54 PM
Replies: 72,254
Views: 6,074,089
Posted By Alan P
If you're going to use REW, it's better to run FR...

If you're going to use REW, it's better to run FR sweeps to set your sub distance.

This is over-simplified but - run some sweeps with just your sub and center channel playing and adjust the sub...
Forum: Subwoofers, Bass, and Transducers   08-29-2014, 03:34 PM
Replies: 17
Views: 309
Posted By Alan P
Well, if you're not willing to make sacrifices in...

Well, if you're not willing to make sacrifices in aesthetics, you're going to have to make some sonic sacrifices. You can't have your cake and eat it to. :)
Forum: Subwoofers, Bass, and Transducers   08-29-2014, 03:21 PM
Replies: 17
Views: 309
Posted By Alan P
I will never understand people who design these...

I will never understand people who design these big-buck home theaters without flexible sub placement in the plans. :confused:

They just assume that wherever they decide to place them (for...
Forum: Subwoofers, Bass, and Transducers   08-29-2014, 02:08 PM
Replies: 4
Views: 176
Posted By Alan P
Yup, phase issue for sure.

Yup, phase issue for sure.
Forum: Subwoofers, Bass, and Transducers   08-29-2014, 02:02 PM
Replies: 5
Views: 164
Posted By Alan P
I gather you already have placement for the...

I gather you already have placement for the second sub decided then? Working with multiple subs without at least a few placement options will get you nowhere in terms of the mode-smoothing benefits.
Forum: Subwoofers, Bass, and Transducers   08-29-2014, 01:59 PM
Replies: 17
Views: 309
Posted By Alan P
:eek: Fingers-crossed that it works out and...

:eek:

Fingers-crossed that it works out and your not sitting in a huge null....but don't be surprised if you are.

You got a diagram of your room (with sub placement), or at least some...
Forum: Receivers, Amps, and Processors   08-29-2014, 01:55 PM
Replies: 72,254
Views: 6,074,089
Posted By Alan P
Cubby, +1 to using REW to measure your...

Cubby,

+1 to using REW to measure your response.

If you have only one sub and reversing the phase produces higher SPL at the MLP and smoothes out the bass, then it is obvious to me that...
Forum: Audio theory, Setup and Chat   08-29-2014, 11:29 AM
Replies: 11,325
Views: 288,496
Posted By Alan P
I use a UMM-6 and I've never tried to measure any...

I use a UMM-6 and I've never tried to measure any noise floor except the one in my living room which is about 50-55db regardless if I use the mic or the SPL meter.
Forum: Audio theory, Setup and Chat   08-29-2014, 07:30 AM
Replies: 7
Views: 232
Posted By Alan P
Again, if you set the media player to output...

Again, if you set the media player to output SPIDF LPCM it should work.
Forum: Receivers, Amps, and Processors   08-29-2014, 07:26 AM
Replies: 72,254
Views: 6,074,089
Posted By Alan P
In addition to the great, informative FAQ answer,...

In addition to the great, informative FAQ answer, here's my short version. :)

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

Set the gain on both subs to the same level - around 12:00-2:00 on the...
Forum: Receivers, Amps, and Processors   08-28-2014, 03:43 PM
Replies: 72,254
Views: 6,074,089
Posted By Alan P
Thanks guys, that's good to know!

Thanks guys, that's good to know!
Forum: Receivers, Amps, and Processors   08-28-2014, 10:25 AM
Replies: 72,254
Views: 6,074,089
Posted By Alan P
batpig - is that true for all XT32 AVRs/Pre-pros?...

batpig - is that true for all XT32 AVRs/Pre-pros? I thought only a few actually set distance for 2 subs separately. I do not have XT32 so I don't know for sure though.
Forum: Audio theory, Setup and Chat   08-28-2014, 07:28 AM
Replies: 7
Views: 232
Posted By Alan P
Did you look at the owners manual?? You need to...

Did you look at the owners manual?? You need to try SPDIF LPCM, you are most likely set to SPDIF RAW now.

It's not clear from the OM, but you may lose the ability to playback multichannel...
Forum: Audio theory, Setup and Chat   08-27-2014, 03:11 PM
Replies: 21
Views: 473
Posted By Alan P
I would guess then that the CC and presence...

I would guess then that the CC and presence speakers should be identical.....? Probably would be best I'm thinking.
Forum: Audio theory, Setup and Chat   08-27-2014, 02:46 PM
Replies: 21
Views: 473
Posted By Alan P
Can Yamaha's Dialogue Lift work in reverse (if...

Can Yamaha's Dialogue Lift work in reverse (if your CC is mounted above the TV/screen)?
Forum: Subwoofers, Bass, and Transducers   08-27-2014, 02:38 PM
Replies: 15
Views: 314
Posted By Alan P
And if the sub(s) work better back there, you...

And if the sub(s) work better back there, you could get a wireless kit for the permanent installation. ;)
Forum: Subwoofers, Bass, and Transducers   08-27-2014, 09:14 AM
Replies: 4
Views: 209
Posted By Alan P
Just wanted to point out that with mis-matched...

Just wanted to point out that with mis-matched subs, it's not gonna look symmetrical. :)
Forum: Subwoofers, Bass, and Transducers   08-27-2014, 09:09 AM
Replies: 15
Views: 314
Posted By Alan P
basshead gives good advice, but I wanted to...

basshead gives good advice, but I wanted to address your placement issues.



#1 (http://www.avsforum.com/forum/usertag.php?do=list&action=hash&hash=1) RULE OF SUBWOOFERS: The most aesthetically...
Forum: Receivers, Amps, and Processors   08-27-2014, 08:49 AM
Replies: 72,254
Views: 6,074,089
Posted By Alan P
Nope, you pretty much got it. Below is my...

Nope, you pretty much got it. Below is my standard procedure for dual subs with Audyssey.

As far as EQ with the MiniDSP, are you aware that REW will generate filters for your MiniDSP based on your...
Forum: Receivers, Amps, and Processors   08-27-2014, 07:57 AM
Replies: 10,700
Views: 881,201
Posted By Alan P
What sub(s) do you have now? IMO, a quality sub...

What sub(s) do you have now? IMO, a quality sub is the #1 (http://www.avsforum.com/forum/usertag.php?do=list&action=hash&hash=1) best upgrade you can do as long as you have a "capable" AVR (which...
Forum: Audio theory, Setup and Chat   08-26-2014, 08:58 PM
Replies: 11,325
Views: 288,496
Posted By Alan P
Great post Jerry! I hope that puts HDs mind at...

Great post Jerry! I hope that puts HDs mind at ease....and maybe set him on the right track. :)
Forum: Subwoofers, Bass, and Transducers   08-26-2014, 08:52 PM
Replies: 13,542
Views: 515,954
Posted By Alan P
Calm....calm.......and for the record, I am NOT...

Calm....calm.......and for the record, I am NOT an "acoustical engineer" nor do I claim to be one.....nor do I appreciate the sarcasm. :rolleyes:

Sorry if I rubbed you the wrong way, but the...
Forum: Audio theory, Setup and Chat   08-26-2014, 04:03 PM
Replies: 11,325
Views: 288,496
Posted By Alan P
Have you verified (with an SPL meter) that the...

Have you verified (with an SPL meter) that the sensitivity factor in your cal file is correct?
Forum: Audio theory, Setup and Chat   08-26-2014, 04:02 PM
Replies: 11,325
Views: 288,496
Posted By Alan P
Hmmm....I think if you have the sensitivity...

Hmmm....I think if you have the sensitivity factor in your cal file you don't need to set levels (if by "set levels" you mean "calibrate SPL"). In fact, it might not even be the right thing to do if...
Forum: Audio theory, Setup and Chat   08-26-2014, 03:55 PM
Replies: 11,325
Views: 288,496
Posted By Alan P
Hey HD - do you calibrate the SPL in REW every...

Hey HD - do you calibrate the SPL in REW every session or do you have a mic cal file with a sensitivity factor? Which mic again?

If the former, maybe your SPL meter is whack. If the latter, maybe...
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