Redefining the way
you experience sound.
PLEASE NOTE:
Installation should be performed by qualified service personnel, and must meet all local building codes.
STEP 1: DETERMINE & SET IMPEDANCE MULTIPLICATION SETTINGS
1.) Count the total number of pairs of 4 Ohm and 8 Ohm speakers you are connecting. Count pairs of 6 Ohm speakers as 4 Ohm
speakers.
2.) Determine if the amplifier can support a 4 Ohm or 8 Ohm speaker load. You can typically find this information in the amplifier
owner's manual.
3.) Determine the correct impedance match jumper position from the charts shown below. See Figure 2 if your amplifier can handle
a 4 Ohm speaker load. See Figure 3 if your amplifier can handle an 8 Ohm speaker load.
4.) Set the impedance match jumpers on all of the volume controls in the system to the same position (1X, 2X, 4X, 8X or 16X). See
Figure 1 below.
NOTICE!
Make sure to set both impedance
match jumpers on the volume
control to the same position.
AMPLIFIER IS STABLE TO 4 OHMS
Number of pairs of 8 Ohm speakers
Figure 2
RBH does not recommend installing more than 8 volume controls in parallel. RBH also does not recommend installing more
than two (2) 8 Ohm speakers per channel on each volume control without additional impedance protection.
PLEASE NOTE: High impedance match setting's affect on volume
Setting the impedance match jumpers higher than 1X will yield less power per pair of speakers. For example: An amplifier rated at 100
Watts per channel RMS into 8 Ohms is to be used for 8 pairs of speakers. In order to accommodate 8 pairs of 8 Ohm speakers, an 8X
impedance match setting must be used. Therefore, this will limit the 100 Watts of power to 12.5 Watts for each speaker pair, or
one-eighth of the amplifier's power.
For assistance, please call 800-543-2205 or visit http://www.rbhsound.com.
STEREO VOLUME CONTROL
™
Installation Instructions
VLC-100W
jumper set to 2X
Figure 1
AMPLIFIER IS STABLE TO 8 OHMS
Number of pairs of 8 Ohm speakers
WARNING!
Make sure to set the impedance
match jumpers on all of the volume
controls in the system to the same
position, otherwise serious amplifier
damage may occur.
Figure 3
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