It seems everything in audio is a compromise.
I guess a pretty common compromise (in normal living rooms, not dedicated listening spaces) is that the main listening position can end up being too close to the rear wall (and can't be moved for whatever reason).
Various Audyssey setup guides call for measurements to be made with the microphone behind the MLP, but also say that the microphone should not be positioned closer than X cm from the rear wall (eg. X is sometimes quoted as 30 or 50). (They also suggest at least 30cm spacing between measurements).
If the MLP is say about 50cm or less from the rear wall it becomes impossible to comply with the mic positioning recommendations - so we can expect Audyssey to perform sub-optimally.
What advice can be offered to those whose listening position is unavoidably close to the rear wall?
Remember, we are talking about living room type spaces, and so room treatments such as huge thick accoustic panels are probably unacceptable. I'm thinking more of things like maybe a notch filter in the bass frequency that corresponds to the distance from the back wall.
I guess a pretty common compromise (in normal living rooms, not dedicated listening spaces) is that the main listening position can end up being too close to the rear wall (and can't be moved for whatever reason).
Various Audyssey setup guides call for measurements to be made with the microphone behind the MLP, but also say that the microphone should not be positioned closer than X cm from the rear wall (eg. X is sometimes quoted as 30 or 50). (They also suggest at least 30cm spacing between measurements).
If the MLP is say about 50cm or less from the rear wall it becomes impossible to comply with the mic positioning recommendations - so we can expect Audyssey to perform sub-optimally.
What advice can be offered to those whose listening position is unavoidably close to the rear wall?
Remember, we are talking about living room type spaces, and so room treatments such as huge thick accoustic panels are probably unacceptable. I'm thinking more of things like maybe a notch filter in the bass frequency that corresponds to the distance from the back wall.