Question about Audyssey level adjustments

[Nugu]

After running Audyssey since I moved around some stuff I got to wondering about why Audyssey was setting speakers at negative db's the way it did.

Don't get me wrong, I understand it's adjusting speaker levels based off room acoustics. The thing that's bothering me is this.

It set it as so:
Left -6 (odd furniture placement causes sound reinforcement from that corner of the room.)
Center -6
Right -5
SurL -6
SurR -6
Sub -15 (Small room, sub set at only 50% on dial)


Here's my question, why -5/6 db? Wouldn't
L/C/SR/SL -1
Sub -10

have the same result? This maybe common knowledge but I just can't figure this out and haven't been able to find a answer using search.

Sorry about this, but sometimes I focus on something and it starts bugging me to no end.



Edit: My first assumption was it was basing overall sound reduction from the current volume level, but after zeroing the volume gain it still came out the same.

 

[sptrout]

First, and most important, you must turn your sub level down. Around 25% is about typical. The most Audyssey (or the AVR actually) can decrease the level of any channel is usually 15dB, therefore, since the current setting is -15dB the AVR is at its limit (the actual sub level may still be to high).

I do not see anything wrong with the other level settings. Remember Audyssey/AVR is just setting each channel to 75dB SPL at the first microphone placement (prime sitting spot). The actual numbers are purely relative.

BTW - - As to your last comment - - -When running Audyssey it totally ignores all other settings including the AVR's volume control setting.

 

[sholling]

Here's my question, why -5/6 db? Wouldn't
L/C/SR/SL -1
Sub -10

I tend to agree with you. I usually use a meter double check or tweek the settings a bit once Audyssey finishes. I'd turn the sub down a wee bit and rerun Audyssey. If everything is still down that far I'd bump them up a bit to bring the highest to 0.

 

[AVRat]

It’s setting the speakers’ balance to a reference sound pressure level (SPL) when the receiver’s master volume is at 0dB. Your power unit has more power than necessary for the size of the room. When done, you could readjust the levels, then your new reference level would be offset by that amount. Add 5dB and the new reference level on the master volume is -5dB. I suggest you lower the gain on the sub to ¼ or less.

 

[Nugu]

Thanks all, I figured it might be trying to target a base spl but hadn't ever heard anything about that in Audyssey. I'll probably bump them all up by 5 then, because on some sources (especially my weak phono pre-amp) it's so silent I end up having to near-max the volume.

As far as the sub goes I know it's set a little 'hot' but well I've been listening to "D is for Dubby, the Lustmord Dub Mixes" lately.
Check out "Vagina (Version)" if you ever want to rattle the house.

 

[BoredSysAdmin]

Re-read the master guide

http://www.avsforum.com/avs-vb/showthread.php?p=14456895