 Re: Calibrating Speakers
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Quote:
My Denon doesn't care what the master volume is set to during calibration.
If you are doing it manually, it HAS to care...because what if your speakers are in a 15000 cu.ft. room, and your M80s are 20 feet away from the listening position...The trim only goes so far (my trim only goes from -10 to +10). So you have to have a decent master volume up first because you can only add so much trim to each speaker. At least thats how it is for my Yammy 
Edit:
Quack, thats very strange indeed...I do not understand that...how much trim can you add on your denon? If it is limitless than I understand how it would have a "set" master volume.
Last edited by Hutzal; 08/15/07 08:35 PM.
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Re: Calibrating Speakers
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Now that I've thought about it a minute I realize I'm still confused or missing something. 2 receivers exactly the same. Set one receiver at -20 on the volume / 75dB and a second receiver at -10 on the volume / 75dB. Move them both to 0 so 20 bumps up on the first and 10 bumps up on the second. How can they both now be at the same level?
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Re: Calibrating Speakers
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Hutz is right. My main point, though, was that your amps will be using a specific number of watts to drive your speakers to 75dB (using test signals) -- regardless of the master volume or trim settings. So there will always be a set amount of headroom above that. Remember that volume adjustment is not linear (e.g. the scale does not map linearly to the number of watts being used).
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Re: Calibrating Speakers
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Last question of confusion then. Is it possible to run out of volume before running out of headroom? If you had calibrated at 75dB very high up the volume knob...
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Re: Calibrating Speakers
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To do that, you'd probably have to put in -12dB settings on all the speakers. If the volume knob actually is in dB, you couldn't get all that high on it--you're limited by the fact you can only go to -12dB.
I am the Doctor, and THIS... is my SPOON!
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Re: Calibrating Speakers
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I think I'm beginning to understand all of this. I'll find out tonight when I get home. Of course the other factor that hasn't even been mentioned are the distance settings that could also impact and affect the calibration if not correct.
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Re: Calibrating Speakers
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Distance settings would not effect db output, it only effects the delay of output. May I add that this thread is giving me a headache? 
Last edited by Hutzal; 08/15/07 08:53 PM.
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Re: Calibrating Speakers
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Re: Calibrating Speakers
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Well, I tried it and my Denon does not appear to care about the master volume.
1. I set the master volume to -70dB. I manually engaged the test tone out of my left speaker and the SPL meter read 74 dB.
2. I then came out of "setup", I set the master volume to 0dB, went back into "setup", manually engaged the test tone out of my left speaker and the SPL meter read 74dB.
The way I look at it, the channel trim sets the relative level between the speakers. So it doesn't have to care about the master volume. The master volume simply raises the level on all speakers equally.
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Re: Calibrating Speakers
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Mojo,
how high can your trim go for each speaker? My yamaha cuts off at +10 max
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