User manual

Page 38
SR-8100: User Manual
If you rearrange your furniture, move your speakers, or add or remove reective or sound
absorbing wall hangings (like big pictures or tapestries), you should re-run the Sherbourn
Advanced Room Correction System for best results.
If you purchase new speakers, or change adjustments on your speakers or other equipment
(like the level controls on your tweeters or amps), you should run the Sherbourn Advanced
Room Correction System again.
The Sherbourn Advanced Room Correction System is powerful, but you will still get the best
results if you start out with a good room layout and good speakers. At a minimum, try to position
speakers as symmetrically as possible from left to right relative to the listening position. (Left
and right speakers of each set should be about the same distance to the sides of the listening
position; the center should be as near the center as possible. Perfect symmetry may not be
possible in your listening room, but the closer you get, the better your results will be.)
In general, highly reective rooms are not optimum in terms of sound quality, and even the
Sherbourn Advanced Room Correction System may not be able to completely correct for the
acoustic properties of an overly “live” room.
Third, run the Sherbourn Advanced Room Correction System.
To run the Sherbourn Advanced Room Correction System, press the Menu button (to get into the
menu system), select Setup, move down to Auto Room EQ, move right to Auto Room EQ, and press
Enter. Press Enter again when asked, and again when asked after passing ambient level check. (If
you “fail ambient” it means that the Sherbourn Advanced Room Correction System thinks your room
is too noisy, so look for appliances or other things making noise and quiet them.)
Note: If the Sherbourn Advanced Room Correction System fails to run, ensure that your
microphone is plugged in to the correct input (the Cal jack on the front of the SR-8100).
The Sherbourn Advanced Room Correction System will now play a series of test tones through each
of your speakers in turn. This will take several minutes; do not interrupt the sequence. If you don’t
have a full seven speakers plus a subwoofer, the Sherbourn Advanced Room Correction System will
still take several seconds to “test” each of the ones that aren’t there (to verify that they really aren’t
there); don’t worry, the Sherbourn Advanced Room Correction System won’t get stuck. After the rst
series of test tones are done, the Sherbourn Advanced Room Correction System will present you
with a screen summarizing what it has found out so far (the presence, distance, and phase of each
of your speakers) and wait for you to press Enter (it will eventually continue by itself if you do not).
Note: The Sherbourn Advanced Room Correction System is very sophisticated, but no
automated system is totally foolproof. Unusual room acoustics, reections, or unusual
speakers can cause it to get incorrect results. If the Sherbourn Advanced Room Correction
System says that the phase of a particular speaker is reversed, it is a good idea to double
check your wiring, and the phase of your power amp and speaker. If, however, you nd that
the Sherbourn Advanced Room Correction System is mistaken, you can safely ignore its
ndings. If the Sherbourn Advanced Room Correction System says your subwoofer is out
of phase, look for a phase reversal switch on your sub (many have one) and try it the other
way. If your sub has a variable phase control, setting it to “180” is the same as reversing the
phase. Moving a subwoofer to a different position in the room may also result in a reversed
acoustic phase. If your sub is denitely phased correctly, or you have no way to reverse
it, then just ignore that as well. If you change any wiring or speaker positions at this point,
please cancel out of the Sherbourn Advanced Room Correction System and restart it from
the beginning.