Niles Audio MSA-10A - Manual (Page 4)

2
INSTALLATION
CONNECTIONS
NOTE: WHEN CONNECTING THE MSA-10A TO RECEIVERS OR AMPLIFIERS WITH “A” AND “B” SPEAKER
SELECTION, CONNECT THE MSA-10A TO SPEAKER POSITION “A”.
DO NOT CONNECT ANYTHING
TO SPEAKER POSITION “B” TO PREVENT THE AMPLIFIER FROM DRIVING AN UNUSUALLY LOW
IMPEDANCE LOAD.
NOTE TO OWNERS OF TUBE AMPLIFIERS: VIRTUALLY ALL TUBE AMPLIFIERS MUST HAVE A LOAD
CONNECTED AT ALL TIMES. IF THE AMPLIFIER TO BE CONNECTED TO THE MSA-10A IS A TUBE
AMPLIFIER, BE SURE TO ALWAYS HAVE AT LEAST ONE PAIR OF SPEAKERS SWITCHED ON AT ALL TIMES.
AN ALTERNATIVE IS TO PERMANENTLY CONNECT A 150 OHM, 5 WATT RESISTOR ACROSS THE TUBE
AMPLIFIER’S OUTPUT IN PARALLEL WITH THE MSA-10A. SEE
FIGURE 2 FOR THE HOOKUP DIAGRAM.
Refer to Figure 1 on the following page for hookup diagram. Use #20 through #14 gauge speaker
wire for all connections.
The insulation on each wire should be stripped 1/4" – no more – the ends twisted tightly together,
then inserted into the appropriate hole on each rear panel terminal block. Secure each wire by
tightening the small set screws on the top of the terminal blocks. Be certain that proper “phasing”
is observed: connect the positive (+) terminals on the MSA-10A to the positive terminals on the
amplifier and speakers and negative (-) terminals on the MSA-10A to the negative terminals on the
amplifier and speakers.
OPERATION
Operation is straightforward. Simply depress the button(s) corresponding to the speaker pair(s) you
wish to play. To turn a pair off, simply press the button again.
SPECIFICATIONS
Audio Power Handling: 200 Watts per channel (RMS)
350 Watts per channel (peak music power)
AC Power Requirements: 120-volt to 16-volt AC transformer (supplied)
Overall Dimensions: 17-3/8" wide x 3-7/8" high x 7-5/8" deep
Weight: 15 lbs.
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