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ACOUSTIC TREATMENT MATERIALS
The M106 and M105 feature high-order filters that optimize the
loudspeakers' on-axis and off-axis response, minimizing sonic
degradations that occur in overly "live" rooms (those with surfaces that
are acoustically reflective). Placing minimal acoustic treatment materials
at the room's primary reflection points will reduce these distortions even
further. Ideally, acoustic absorbers should be placed at the first reflection
points on the front and side walls and either acoustic absorbers or
diffusers should be placed at the first reflection points on the rear wall.
Front Wall
Left
M106/M105
Acoustic
Treatment
Materials
Because the listener's eyes and ears are on the same plane, the "mirror
method" is an accurate determinant of critical reflection points. This
method can be used to determine reflection points for side walls, rear
walls, front walls, and even the ceiling. Applying acoustic treatment
materials to the side walls is most important, followed by the ceiling,
front wall and rear wall.
To determine reflection points using the mirror method:
1. Once the loudspeakers have been placed, sit in the primary
listening position and ask another person to slide a mirror along
the listening room walls.
2. Note the locations at which you can see either loudspeaker in the
mirror from the primary listening position. Be sure to look for both
loudspeakers in the reflection on each room boundary. These are
reflection points that require acoustic treatment materials.
If acoustic treatment materials are not available, hanging a rug over
the reflection points will help reduce sonic degradation in overly
"live" rooms. Carpeting the floor area between the loudspeakers and
the primary listening position and placing irregular surfaces such as
bookcases at the first reflection points will also help minimize strong
reflections.
Revel Performa3 M106/M105 Bookshelf Loudspeaker
Owner's Manual
MAKING CONNECTIONS
CAUTION: Never make or break connections unless all
system components are powered off.
OBSERVE PROPER POLARITY
Connect the amplifier's positive (+) terminal to the positive (+) terminal
on the corresponding speaker; connect the amplifier's negative (–)
terminal to the negative (–) terminal on the corresponding speaker. Do
not reverse polarities (that is, do not connect + to –, or – to +) when
making connections. Doing so will cause poor stereo imaging and
diminished bass response.
Right
M106/M105
SPEAKER CABLE
Use high-quality loudspeaker cable with a maximum total loop
resistance of 0.07 ohms or less for each wire run. Refer to the table
below to determine the appropriate wire gauge for your installation.
MINIMUM WIRE GAUGE
Maximum Wire
NOTE: High loop resistances that exceed 0.07 ohms (for each
wire run) will cause the loudspeaker's filter network to be mis-
terminated, resulting in considerable degradation of sound quality.
Maximum Wire
Length (Feet)
Length (Meters)
< 87
< 27
< 69
< 21
< 58
< 18
< 43
< 13
< 34
< 10
< 27
< 8
< 22
< 7
< 17
< 5
< 14
< 4
< 11
< 3.5
< 9
< 3
< 7
< 2
< 5
< 1.5
Minimum Wire
Gauge (AWG)
6
7
8
9
10
11
12
13
14
15
16
17
18
5
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