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#221243 - 09/16/08 01:53 PM Re: Denon 3808CI questions [Re: Da_Gimp_Pimp]
jakewash Offline
shareholder in the making

Registered: 12/26/03
Posts: 10394
Loc: Calgary, Alberta
 Originally Posted By: wheelz999
.

Jason, if I set the receiver subwoofer setting to LFE + Mains won't my front l/r channels will be reproducing LFE as well? I thought it was better to use the subwoofer exclusively because that's its job :-) and it can push more air etc., at least I think I learnt that somewhere on the forum.
It's only better if sounds better to you. LFE+ Mains just means the main speakers are also playing in full range as well as anything below the crossover is sent to the sub. There is no magic setting as we all have different rooms and preferances. I like mine with LFE+Mains sometimes. It does make your amp work harder but it can do it. The M80s play quite low, I have my crossover set to 60, sometimes even 40 and the receiver just keeps working without any problems.

Here is a link to a quick test of all the sub settings and my findings, be sure to read all the way down as I made a mistake in the original post.
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#221247 - 09/16/08 02:16 PM Re: Denon 3808CI questions [Re: Da_Gimp_Pimp]
Murph Offline
axiomite

Registered: 10/05/06
Posts: 6624
Loc: PEI, Canada
Yes Indeed. After taking a real quick glance at your manual, it seems that they have combined both the basic speaker setup (distances and levels) with the EQ and crossover adjustments.

In my older model, it was a two step process. It began with the usual basic test tones, set the distance & levels and then it would stop and ask you if you wanted to continue on and do the auto EQ portion. Your model seems to take an 'all in one approach' from what I read.

If you want to experiment with not using the Aut0-EQ, then I would suggest turning off Audyssey EQ altogether and double checking the speaker distance and redo the level checks with an SPL meter. By turning it off, you still retain all the settings it came up with so you can go back to compare without having to run it again. Turning it Off is described on Page 43 of the manual.
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#221248 - 09/16/08 02:20 PM Re: Denon 3808CI questions [Re: Murph]
jakewash Offline
shareholder in the making

Registered: 12/26/03
Posts: 10394
Loc: Calgary, Alberta
I have found Audyssey to be very accurate for speaker distances and levels except for the subwoofer. The EQ can be manually adjusted to tastes after the auto setup is done.
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Jason
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#221249 - 09/16/08 02:25 PM Re: Denon 3808CI questions [Re: Murph]
Murph Offline
axiomite

Registered: 10/05/06
Posts: 6624
Loc: PEI, Canada
Also, here is another gotcha that had me asking questions here about missing LFE a while ago until I found this lonely little section in the manual.

See Page 42 in your manual. It won't let me cut and paste from the Acrobat file so basically....

Some DTS encoded material has LFE recorded significantly louder than normal or (more accurately) Dolby standards. Denon has a feature to compensate for this where you can adjust the LFE level outside of the normal speaker setup level for the sub.

This once got set to -10 DB for me and I wondered where all the deep bass went. I'm way too lazy to go back and change this setting every time I change material so I set it back to zero but it actually recommends changing it depending on what you are listening to. -10 for DTS music.

I have a few DTS concerts and leaving it at zero hasn't been an issue for me but my ears are pretty forgiving unless the bass is boomy.


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#221250 - 09/16/08 02:27 PM Re: Denon 3808CI questions [Re: jakewash]
Murph Offline
axiomite

Registered: 10/05/06
Posts: 6624
Loc: PEI, Canada
I agree that it is good on distances and levels but since his auto-setup doesn't seem to give him the option to do just distance and levels, I just figured it might save him listening to frequency sweeps if he double checks it manually. Of course, they might already be fine so just shutting Audyssey off might be all he needs to do to compare.
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#221254 - 09/16/08 02:43 PM Re: Denon 3808CI questions [Re: Murph]
jakewash Offline
shareholder in the making

Registered: 12/26/03
Posts: 10394
Loc: Calgary, Alberta
 Originally Posted By: Murph
...just shutting Audyssey off might be all he needs to do to compare.
Agreed. I think I am actually running mine without any setups at all right now, except my own speaker set up and distances done manually. The outside projects are coming to an end so I will be playing more with the 3808 especially the online/web based viewing of the settings etc.
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Jason
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#221292 - 09/16/08 09:50 PM Re: Denon 3808CI questions [Re: jakewash]
fredk Offline
axiomite

Registered: 12/06/07
Posts: 6969
Loc: Canada
Having just measured my room and realizing how 'hot' I had my sub, I wonder how much of the auto-(mis)calibrating is due to in room peaks?

I think I turned my sub way up because I was missing out on a lot of the bass. Unfortunately I have a nasty peak at 52ish Hz. I think that peak really messes up the spl meter readings.
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#221297 - 09/16/08 10:25 PM Re: Denon 3808CI questions [Re: Da_Gimp_Pimp]
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10309
Cam, yes the subwoofer bass assignment should generally be set to LFE, not the "+ Mains" setting. This allows the sub alone to play what it does best, i.e., any LFE that may be present at times during movies, plus the redirected low bass in music from speakers set "small". In playing 2-channel CDs, the sub set LFE will get the redirected bass from the mains or other speakers when they're set "small" and the mode is set "stereo"(or a setting such as DPLII), not "direct", "pure" or any such setting that doesn't allow bass management.

On the use of Audyssey, yes your 3808 sets both the calibration numbers(level, size, distance, crossover)and room equalization. But as Andrew(Murph)pointed out, on p.43 of your manual it explains the choices that you have later in regard to the equalization part. You can either stay with the regular Audyssey curve that it set, choose Audyssey "flat"(most think that it emphasizes the highs too much), choose to set a limited number of frequency points manually(this is instead of the Audyssey setting, not a "tweaking" of it)or choose no equalization. You can experiment to determine which of the four equalization settings that you like best.
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#221864 - 09/21/08 01:18 PM Re: Denon 3808CI questions [Re: JohnK]
Da_Gimp_Pimp Offline
connoisseur

Registered: 06/23/07
Posts: 3975
Loc: Sitting down somewhere
Well the reason why I was losing the bottom end is because the trim what set to remote. I now have it set at full and notice a huge difference, I've also turned Audyssey off until I recalibrate the receiver with the new subwoofer settings. Thanks for the suggestion to check the settings on the back of the subwoofer, I don't know how things got switched around.

Oh yes, one more thing \:\) . Before I run Audyssey should I leave my subwoofer settings where they are now or change them to the suggested settings in the manual that I mentioned in a previous post? Did any of you other 3808 owners change the settings as per the manual directions?

Thanks
Cam
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#221882 - 09/21/08 03:39 PM Re: Denon 3808CI questions [Re: Da_Gimp_Pimp]
terzaghi Offline
connoisseur

Registered: 04/04/07
Posts: 4840
Loc: Tulsa, Oklahoma
I set my ep500 to a hair higher than the 6 oclock position during audyssey calibration with the 3808. I turned the crossover all the way up (bypass) and set the trim to flat. UI have sense reset all of my denon 3808 setting and recalibrated everything by hand and I listen with no audyssey eq applied.
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