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Because the listener's eyes and ears are on the same plane, the "mirror
method" is an accurate determinant of first 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.
MAKING CONNECTIONS
CAUTION: Never make or break connections unless all system
components are powered off.
BINDING POSTS
These gold-plated terminals provide connections from the power amplifier(s)
to provide secure connection for speaker cables terminated with banana plugs,
spade lugs, pin connectors or bare wire.
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.
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.
Revel PerformaBe F228Be M126Be Loudspeaker
Owner's Manual
MINIMUM WIRE GAUGE
Maximum Wire
Maximum Wire
Length (Feet)
Length (Meters)
<87
<69
<58
<43
<34
<27
<22
<17
<14
<11
<9
<7
<5
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.
M126Be
The M126Be has one set of binding posts as illustrated here.
Amplifier
(one channel shown)
1. Connect both loudspeakers using the same method, using speaker cables of
the same length for each speaker.
2. Review the owner's manuals for all associated audio components to
determine their correct connection procedures.
Minimum Wire
Gauge (AWG)
<27
6
<21
7
<18
8
<13
9
<10
10
<8
11
<7
12
<5
13
<4
14
<3.5
15
<3
16
<2
17
<1.5
18
7
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