Re: Avia Disc & Sub-Woofer Calibration...
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Joined: Dec 2003
Posts: 10,420
shareholder in the making
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shareholder in the making
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I think the 75 db might be the standard to allow for headroom of various speaker sensitivities in a system and still achieve the 85db movie standard.
I guess you could clibrate to 70 while using the disc and then to 75 when using the pink noise from the receiver, as the receivers output is set at 75db. The biggest thing is maintain the same speaker levels all around.
Jason M80 v2 VP160 v3 QS8 v2 PB13 Ultra Denon 3808 Samsung 85" Q70
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Re: Avia Disc & Sub-Woofer Calibration...
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Joined: Dec 2006
Posts: 3,569
connoisseur
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connoisseur
Joined: Dec 2006
Posts: 3,569 |
I could be wrong and without going back to the disc I thought it stated the calibration process was for a single sub system. Like you Grunt, it seems to me like that particular calibration process could be designed for a multi-sub system.
Just to be clear I was thinking it would be good for speaker + subwoofer pairs where each pair is hooked up to it’s own channel L/main, R/main etc… otherwise I can’t see any use for them in a single or multi-sub system running off the subwoofer line out. Clearly how they tell you to use those other test tones is very confusing.
3M80 2M22 6QS8 2M2 1EP500 Sony BDP-S590 Panny-7000 Onkyo-3007 Carada-134 Xbox Buttkicker AS-EQ1
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Re: Avia Disc & Sub-Woofer Calibration...
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Joined: Jan 2004
Posts: 13,848 Likes: 14
shareholder in the making
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shareholder in the making
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Posts: 13,848 Likes: 14 |
Good question Rick, and sorry I could not answer your question last night. I may try my new AviaII disc but I admit, I was confused by the calibration for each speaker.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350 AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Avia Disc & Sub-Woofer Calibration...
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Joined: Jul 2004
Posts: 4,444 Likes: 16
connoisseur
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connoisseur
Joined: Jul 2004
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Rick,
That alternating test between sub and channel is for setting your crossover point. Or, at least that's what I use it for. Play with it some and you'll changing your crossover (at the channel level) will change the spl db reading on the meter.
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Re: Avia Disc & Sub-Woofer Calibration...
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Joined: Feb 2005
Posts: 5,211
axiomite
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OP
axiomite
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Posts: 5,211 |
Thanks Mike, Randy and I were talking on the phone last night and actually touched upon whether it was for setting the crossover or not, I assumed that normally the crossover would be set by the freq. response of each speaker in the manufacturer's specs? My center and surround crossovers were both set to 100 whenever I did the quick calibration with the 10+db difference between the mains, centers and surrounds. What do you have your centers and surrounds crossovers set on? Just to be clear I was thinking it would be good for speaker + subwoofer pairs where each pair is hooked up to it’s own channel L/main, R/main etc… otherwise I can’t see any use for them in a single or multi-sub system running off the subwoofer line out Grunt thanks for the explanation, I'm getting old ... you'll have to bear with me.
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Re: Avia Disc & Sub-Woofer Calibration...
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
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Tom, it really isn't very crucial and the more important point is to get all the speakers equal in level, regardless of what SPL level is used for the calibration. Be that as it may, most(all?)receiver test tones are set 30dB below the maximum level of 105dB that movies are supposed to be recorded at, so if you adjust the levels to 75dB, then the movie sound(not applicable to music discs, which have no established standard level)would be played at the designated "reference level" when the receiver volume control was at 0 or whatever number was used during calibration. Of course, few listeners find that using the "reference level" for movies is acceptable for long-term listening in the home and use a a level 10dB or more lower.
-----------------------------------
Enjoy the music, not the equipment.
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Re: Avia Disc & Sub-Woofer Calibration...
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Joined: Jul 2004
Posts: 4,444 Likes: 16
connoisseur
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connoisseur
Joined: Jul 2004
Posts: 4,444 Likes: 16 |
Thanks Mike, What do you have your centers and surrounds crossovers set on?
Rick, My twin M22 centers is set to 60, the QS8 surrounds are set to 100 and the M3 S-Backs are set to 90. Mains are set large. I played with this function quite a bit. It really does make a difference in LFE / Low bass DB levels by changing crossover points. This is largly ignored because most receivers restrict you to a global crossover point for all channels.
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Re: Avia Disc & Sub-Woofer Calibration...
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Joined: Jan 2004
Posts: 13,848 Likes: 14
shareholder in the making
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shareholder in the making
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Tell me about it Mike, my 2805 is a global setting, sucks.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350 AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Avia Disc & Sub-Woofer Calibration...
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Joined: Feb 2005
Posts: 5,211
axiomite
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axiomite
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That's one of the issues I have with the H/K Mike, although it does allow separate crossover adjustments for all speakers it only does this in increments of 20hz ... 40, 60, 80 and etc., that is why I had the surrounds and center crossover at 100. I did change the crossover for the center and surrounds to 80 last evening but I haven't really noticed much of a difference in my minimal amount of time with the system since then.
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Re: Avia Disc & Sub-Woofer Calibration...
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Joined: Feb 2005
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axiomite
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axiomite
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Mike just curious, why did you go with the 'large' setting for your mains?
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