OEM SW-8SPKR Quick Start Manual

SW-8SPKR
Product Overview
The SW-8SPKR
SW-8SPKR
is designed as a
Speaker Selection System
distribution and
switching center to
allow up to 8 pairs of 8 ohm speakers to be connected to a stereo Amplifier or Receiver while providing amplifier protection*.
Buttons 1 through 8 are used to turn the four individual pairs of speakers ON & OFF. To maintain individual volume control over
each pair of speakers, "Autoformer" type impedance matching volume controls should be used (1 for each pair of speakers). These
volume controls are to be located in-line between the SW-8SPKR and each speaker pair.
Speaker wiring should be a minimum of 18-gauge. If wire is to be run through walls it should be "CL" rated. For runs over 100 feet
14-gauge wire should be used.
If you are uncertain as to the proper set-up and installation of this device, refer to a qualified technician.
Improper installation of this device can severely damage it and the equipment connected to it!
Each of the individual pairs of speakers will be designated as 1, 2, 3, 4, 5, 6, 7 & 8.
Connect each set of speakers to the appropriate screw terminals as illustrated in example below.
1L+
Speaker Pair 1
left channel positive (+)
1L-
Speaker Pair 1
left channel negative (-)
Be sure to maintain "Polarity" meaning:
Always connect Positive (+) to (+) Positive and Negative (-) to (-) Negative.
Never cross Positive (+) wire connections to Negative (-) connections.
Specifications
Power Handling – 100W RMS per channel (If impedance matching
volume controls are not installed or properly configured then the
maximum output must be de-rated to 55W RMS/ch.)
Using Volume Controls
If you wish to have the capability to individually control the volume level of each pair of speakers you will need one (1) "Autoformer"
type impedance matching volume control for each pair of speakers. With the addition of volume controls, each speaker pair can be
adjusted or turned off using the volume control. Note: If the speaker's volume control is turned off, it can't be turned back on from
the speaker selector (they are independent of each other). If you don't wish to use volume controls or you choose to use controls
that do not offer impedance matching capability then the power handling of this speaker selector must be de-rated as shown in
the specifications.
For more information regarding volume controls visit our website.
When distributing audio from a single Amplifier/Receiver, the maximum speaker level is set at the amplifier. To do this, set the
speaker's individual control to its maximum position and turn then adjust the amplifier to a level that would be considered the
highest normal listening level. Then turn down the volume at the speaker's individual volume control. If the volume control
vibrates in the wall or sound can be heard coming from the control when it is turned down then the amplifier level is too high and
must be reduced or damage will likely occur to the volume controls and possibly the amplifier.
* Note: The Amplifier Protection switch should be engaged when two or more pair of speakers are selected. The amplifier is protected
by buffering the amplifier output through high power resistors. Should you notice an unusual drop in volume from one speaker or
excessive heat from the speaker selector, the system should be checked for possible problems or system configuration issues.
Impedance Compensating Speaker Selector
1 2 3 4 5 6
1R+
Speaker Pair 1
right channel positive (+)
1R-
Speaker Pair 1
right channel negative (-)
Dimensions: 17" W x 2" H x 5-1/4" deep
Net Weight: 5 lbs.
Amplifier
Protection
7 8
Off
On
Engage When Using
Multiple Speakers
Rev. B