Owner`s manual

3-14
Customizing the Nº502 Mark Levinson
The following illustration provides an example of proper
microphone placement during the Check Microphones test. All of
the microphones are positioned as close together as possible in an
unobstructed location that is equidistant from the front left and
front right speakers.
PROPER
Placement of the
Microphones
During the Check Microphones procedure, DO NOT:
χ separate the microphones.
χ scatter the microphones throughout the listening space.
χ obstruct the line-of-sight path between the microphones and the
speakers.
χ position the microphones on the floor, on seat cushions, or in
locations obstructed by furniture and other fixtures where echoes
might obscure calibration noise signals.
χ position the microphones within 2 feet (0.61m) of speakers and
walls or more than 30 feet (9.14m) from any one speaker.
The illustration on the next page provides an example of
improper microphone placement during the Check Microphones
test. The microphones are scattered throughout the listening
space in obstructed locations and out of the line-of-sight with the
speakers, rather than positioned properly as close together as
possible in a location that is equidistant from the front left and
right speakers.
Front
Left
Center
Subwoofer
Front
Right
Microphone
Side
Right
Rear
Right
Rear
Left
Side
Left