Originally Posted by ph3ng
Hei Kbarnes. Thanks for helping out. I could but very unlikely. Given that this setup is out in the open living room and with two young boys running around and space being a luxury the likelihood is zero.
In terms of speaker purchases this is it for this place. Not to mention I'd need to convince the wife to have a cube sticking out in the living room somewhere
Totally agree. But I am alright with what I have heard so far. I suppose ignorance is bliss at this stage seeing as I can compare what I am missing out on :P.
At this stage I am trying to confirm if I've understood and am using the setup correctly. I am more afraid that I am wrecking something because of incorrect application.
Thanks again Kbarnes.
OK, all understood. Your setup is unusual for this thread but I will try to give you my thoughts, based on Audyssey best practice.
AIUI, the subs in your main speakers have their own inputs, which appear to be speaker level inputs. They are fed by a separate amplifier. You are connecting the line level subwoofer outputs of your AVR to the line level subwoofer inputs on the SA amp. You are then connecting the speaker subwoofer inputs to the speaker level outputs on the amp. Do I have this right?
If so, then this isn't all that much different to a regular setup using an external sub. In that setup, the subwoofer outputs of the AVR would go at line level to the inputs on the sub's own plate amp, and from there (internally) to the speaker level connections on the sub drivers themselves.
The normal procedure then is to initially set the SPL to read 75dB in Audyssey, which is accomplished by telling Audyssey to play the test tone while you adjust the gain on the subwoofer amp. So the next question I have for you is, does your SA amp permit you to adjust the gain? If it does, then you need to adjust the gain in one direction or another until Audyssey reads 75dB from the mic. This is where I understand you are hitting the problem you described earlier.
First, please confirm that my setup assumptions above are correct. If they are, and you are connected the way I describe, it is puzzling that you cannot achieve 75dB from the SA amp even with the gain wound all the way up. I am assuming you have the Audyssey mic at the MLP, pointing to the ceiling etc, as described in the FAQ and/or 101 (linked in my sig)?
I can’t see the gain control on the SA amp - I assume it is on the front? Can you provide a bigger image of the back of the SA amp so that I can see the labeling better? Or point me somewhere on the net where I can see this? I just want to satisfy myself on how you are hooked up.
If we can get all these assumptions of mine clarified, then hopefully we can go on to do more investigating. It does seem odd, at first sight, that your SA amp lacks sufficient gain to achieve 75dB, so I am suspecting some form of user error or a faulty amp at this time. Hopefully it is the former.
If everything is setup correctly and you are certain the amp is not faulty, then we can look at the implications of this later. Also, we'll leave the XO issues until we've gone as far as we can with the sub issue.