Originally Posted by spongebob
Also, what confused me on Bob's reply was "where did you have the volume set?" Because you have no control over the volume when running test tones.
My misunderstanding. I thought you were using a calibration track from a test disc.
OK, first of all the built-in test tones in the Anthem don't go through ARC. So you are hearing the boost produced by the positive valued speaker trims ARC Uploaded into your Level Calibration, but you are NOT hearing the attenuation ARC's Room Correction parameters may have included to deal with particular problems in your room.
If you want to double-check ARC is doing the right thing you need to play real content, through an Input you've set up with ARC Room Correction enabled. I.e., an audio calibration test track.
I suggest you use the LPCM 5.1 or 7.1 Channel ID tracks from AIX Audio Calibration, Blu-ray. I've linked to that disc in my Blog post here:
For the correct way to use an SPL Meter when checking this stuff, see my Blog post here:
Balancing Speaker Volume Trims with an SPL Meter
Home Theater setups are typically calibrated to produce 75dB SPL when Reference Level test tones are played. (As noted above, many people find this uncomfortably loud, but it is still the target for setting things up. Note also that PEAK audio output from movies, etc, can be well above that 75dB calibration level.)
But Commercial Movie Theater setups are calibrated at a higher level -- 85dB -- partly to better overwhelm audience noise.
Some folks want to calibrate their Home Theater to the louder, Movie Theater levels, and years ago, Anthem decided to accommodate them as follows:
An ARC solution reported as 75dB in the ARC charts will actually produce 75dB if you play Reference Level test tones through ARC while the Anthem's Volume is set to -10dB.
If, you would rather use your Home Theater at 85dB, you can use that SAME ARC solution. Simply set the Volume to 0dB instead -- i.e., +10dB hotter.
So if your ARC solution is reporting it has achieved 75dB in the charts, and if you play those LPCM Channel ID tracks from the AIX Audio Calibration disc through an ARC-enabled Input in your Anthem, you should get 75dB SPL from your Main Speakers when you have the Anthem Volume set to -10dB.
The Subwoofer will be a little hotter than 75dB SPL in this test -- by an amount equal to the Room Gain built into your ARC solution.