FYI, a lot more than speaker sensitivity. This is where the calibration gets to take
all variables in the signal chain into account by setting up the trims such that a digital input signal of known amplitude (-30dBFS) measures a target SPL at the MLP (75dBC), for each channel. This includes the nett of pre-amp and amp gain, speaker sensitivity, attenuation with distance and room reinforcement etc.... basically everything between the DAC and measuring mic.
Also, it looks like the Denon has pegged the SL trim (I think -12dB is the lower limit), due to the close distance. Just check with the internal pink noise that the surrounds are about the same volume.
Yes, it's based on #1 position. It could have fluffed the SR distance, but at 1130ft/sec it's of no consequence.
Cool beans. Yes I noticed the SL maxed at -12db again this keeps in line with the #1 position.
I'm digging the Martin Logans for surrounds, and know I made the right call, auditioning the bookshelfs prior
because by the numbers alone, I would've purchased the Motion 15 bookshelfs. I could not believe the mid range
tonal mismatch between the two. The Motion 40's colour some piano, but not all, plus I'm just beginning to begin
the break in period, (72 hrs). I come home from work and play some DTV radio with just the surrounds via the AVR.
If you recall, I started a poll thread, and the 1st of the only 2 votes out of 4 choices that were cast for rear/surrounds,
was the Sunfire Cinema wall mounted surrounds, though no reason to back up the vote was stated.
They would have had to have been mounted on the back wall with only lateral shifting in placement + elevation.
This would have been rears, without surrounds, or as surrounds (same difference). So…hopefully, some can understand my quandary
and misunderstanding of rears without surrounds, or more like rears as surrounds.
Also, it is very evident, that the Denon is more than capable at driving the ML speakers despite the 4 ohm rating
due to a nice 92 db sensitivity which makes me wonder if my mains might hoover around 83-84db sensitivity.
Doesn't really matter, Audyssey has performed up to my hopes and expectations in blending the two.
Looking forward to following their instructions from the link you provided. Right now I just ran the "bubble"
you suggested, but couldn't help but wonder if there was one misprint in the "bubble" I overrode for even balance, or chi.
#5 & #6 @ 18" forward of the midpoints between #3 & #1 and #1 & #2;
The #6, shouldn't that be between #2 and #4 rather than 1 & 2?
Between 1 & 2, would be in the middle of the couch and account for the only single central measurement
and offset the trending balance in previous measurements.
Or is this the attempt to...
In this case with the measurement positions slightly skewed towards the critical listener (you).
I will look in the attic tomorrow for my db meter and check the pink noise if I removed the batteries.
I ran PN yesterday, and it was "ok". The FL speaker emitted the noise at what was perceived to be
maybe 10" to 1' lower in elevation than the FR, no doubt room flaws. FR is in a corner where the FL is not.