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#328306 - 11/12/10 10:41 PM Audyssey crossover settings
icehawk21 Offline
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Registered: 04/23/06
Posts: 118
I've just run Audyssey XT32 for the first time in my new Denon 4311 receiver. I've never run Audyssey before so this was a new experience. I haven't had much time to listen so I can't offer a review but I do have some questions regarding the crossovers and speaker settings Audyssey and my receiver chose.

My M60s were set to large (which implies a measured -3db point below 40 Hz). My M2 heights were set to small at 80 Hz crossover. My VP150 center was set to small at 110 Hz. My QS8 surrounds were set to small at 120 Hz.

Do these sound right? What have others experienced when running Audyssey?

I ended up setting my M60s to small and bumped the crossover to 60 Hz - although I might play around with setting them at 40 Hz.

I was a bit surprised by the QS8 surrounds. Does 120 Hz sound right? My concern is whether my EP500 can fill in the full range below 120 Hz. Will the EP500 fill in the upper end of the bass below 120 Hz - say from 80 Hz to 120 Hz? This also applies to the VP150 which is set for 110 Hz.

Thoughts?

Bryan

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#328307 - 11/12/10 10:55 PM Re: Audyssey crossover settings [Re: icehawk21]
JohnK Offline
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Registered: 05/11/02
Posts: 10629
Bryan, the surround crossover measurement is a notch higher than typical, but apparently in your mounting location that's their bass capability. Although the M60 measurement, as you say, apparently showed good enough response at 40Hz for the "large" setting, that doesn't mean that it's the best overall result. As Dr. Kyriakakis suggests, the mains should manually be set "small", with perhaps an 80Hz crossover, so that the sub can handle more of what it does best.
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#328308 - 11/12/10 11:04 PM Re: Audyssey crossover settings [Re: icehawk21]
SirQuack Offline
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Assuming you took your measurement locations correctly from each location, in a dead quiet room, with nothing in the way of the mic to provide reflections, and none of the measurments were taken "outside" the boundaries of the speaker, I would say they don't seem unreasonable.

You were correct in changing the m60's to small, and bumping up the crossover, you might try 80hz even. I have used 60 and 80hz for my m80's and there is not a huge difference.

I think the first time I ran Audyssey, my Qs8's were set to 120hz by Denon (not Audyssey smile ) which is ok and has a lot to do with your room and how you measured. However, after rerunning the sweeps from more refined locations to create a "bubble" around the seating area, they are now set to 90hz, which is fine.

110hz does not sound out of line for the 150, but again I am not familiar with your room, and your measurement locations, so that may change as you become more familiar with the best practices of using Audyssey.

Whatever you do, don't lower a crossover below that which was set by your receiver. It is ok to bump it up, but if you go down you will be losing the room calibration from Audyssey above that point.
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#328314 - 11/12/10 11:36 PM Re: Audyssey crossover settings [Re: SirQuack]
grunt Offline
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Registered: 12/04/06
Posts: 3569
Loc: Nirvana
Originally Posted By: icehawk21

I was a bit surprised by the QS8 surrounds. Does 120 Hz sound right? My concern is whether my EP500 can fill in the full range below 120 Hz. Will the EP500 fill in the upper end of the bass below 120 Hz - say from 80 Hz to 120 Hz? This also applies to the VP150 which is set for 110 Hz


I would try repositioning your speakers trying to take advantage of boundary reinforcement from walls corners with your QS8s and the front wall or cabinet walls for your VP150. This might help your Denon detect them as going lower. Also trying different microphone locations as suggested might also help.

If that doesn’t get you lower numbers I would at least try lowering the crossover from 120 to 110 or even 100 for your QS8s and to 100 for your VP150. At least that way the speaker will try to play a little more of what would otherwise be a large dip in SPL above 100Hz where the EP500 drops off like a rock. The tradeoff is that there is no Audessey curve calculated below where the Denon set the speaker. Given a choice of no Audessey curve or a deep drop in SPL I would do without Audessey over that small frequency range.
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#328315 - 11/12/10 11:41 PM Re: Audyssey crossover settings [Re: grunt]
Wid Offline
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Registered: 06/22/03
Posts: 6789
Loc: The Peoples Republic of Il.

Or go without Audessey entirely. I tried it and did not like the results. I went and did all the settings manually.
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#328316 - 11/12/10 11:42 PM Re: Audyssey crossover settings [Re: Wid]
grunt Offline
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Registered: 12/04/06
Posts: 3569
Loc: Nirvana
Originally Posted By: wid

Or go without Audessey entirely. I tried it and did not like the results. I went and did all the settings manually.


I thought about saying that but didn’t want to open that can of worms here again. wink
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#328318 - 11/13/10 12:00 AM Re: Audyssey crossover settings [Re: icehawk21]
JohnK Offline
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Registered: 05/11/02
Posts: 10629
Bryan, yes you might try rearranging the mounting positions for greater bass support, if feasible. If not, your EP500, with the low pass filter set to the 150Hz max(my earlier model has a 100Hz brick wall filter)can cover those frequencies up to 120Hz, as required by the receiver crossover.
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#328321 - 11/13/10 12:20 AM Re: Audyssey crossover settings [Re: JohnK]
grunt Offline
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Registered: 12/04/06
Posts: 3569
Loc: Nirvana
Thanks for mentioning that John. I forgot the redesigned it. I wonder why they still only show a graph up to 100Hz?
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#328331 - 11/13/10 01:15 AM Re: Audyssey crossover settings [Re: grunt]
jakewash Offline
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Registered: 12/26/03
Posts: 10415
Loc: Calgary, Alberta
Bryan, I know your room and that QS8 setting is not unreasonable. I am a little surprised at the VP150 but again it is not unreasonable for your large open room. I suspect a little aiming of the VP150 might be in order, higher or lower and you might be able to get the frequency to drop a little not that you should be concerened, the VP180 will be the one taking it's place shortly.
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#328345 - 11/13/10 08:34 AM Re: Audyssey crossover settings [Re: jakewash]
Adrian Offline
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Registered: 12/27/08
Posts: 6888
Loc: It's all about the location.
Audyssey set my QS8's at 150hz!
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