Niles Audio Speaker MSA 10A User Manual

I N S T A L L A T I O N G U I D E  
FOR CONNECTING UP TO 10 PAIRS OF SPEAKERS  
S P E A K E R S E L E C T I O N S Y S T E M  
MSA-10A  
 
INTRODUCTION  
The MSA-10A allows you to connect up to ten pairs of speakers to your stereo receiver or amplifier  
and play any or all pairs simultaneously. You don’t have to worry about overloading your amplifier.  
The MSA-10A uses a special autoformer matching system that keeps your amplifier running safely  
– even if you have all ten pairs of speakers playing at the same time. The autoformers maintain a  
nominal 8 ohm load on the amplifier, making it safe for use with most quality amplifiers. Each of the  
ten speaker pairs can have a nominal impedance of anywhere between 4 and 16 ohms. Isolated left  
and right channel ground returns make the MSA-10A compatible with all types of amplifiers including  
those with “isolated” or “floating” output grounds. The removable rear panel connector blocks accept  
speaker wire up to 14 gauge in size.  
NOTE: THE MSA-10A IS DESIGNED FOR USE WITH A RECEIVER OR AMPLIFIER HAVING A MAXIMUM  
POWER OUTPUT OF 200 WATTS PER CHANNEL (RMS). DAMAGE CAUSED BY THE USE OF A HIGHER  
POWER RECEIVER OR AMPLIFIER WILL VOID THE WARRANTY.  
FEATURES  
• Power handling: 200 watts per channel RMS  
• Accommodates 10 pairs of speakers  
• Premium autoformers ensure efficient impedance matching, low power loss,  
and no heat generation  
• Automatic Impedance Protection  
• Removable Speaker output terminals accommodate up to 14-gauge wire  
• Removable Amplifier input terminals accommodate up to 14-gauge wire  
• 72 adhesive-backed room identification labels  
• Includes 16Volt AC Power Supply  
• Two-year limited warranty  
1
NILES AUDIO CORPORATION – 1-800-BUY-HIFI  
 
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:  
Overall Dimensions:  
Weight:  
120-volt to 16-volt AC transformer (supplied)  
17-3/8" wide x 3-7/8" high x 7-5/8" deep  
15 lbs.  
2
 
Figure 1  
Example of using the MSA-10A to connect 10 pairs  
of speakers to a receiver or amplifier.  
Speaker Pair 10  
Speaker Pair 1  
Amplifier  
Speaker “A” Out  
1
2
3
4
1
2
3
4
1
+
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L
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+
L
+
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R
1
L
L- R-  
R
L- R-  
R
L
L- R-  
R
L
L- R-  
SPEAKER  
R
L- R-  
SPEAKER  
R
L- R-  
SPEAKER  
R
L
L- R-  
SPEAKER  
R
L- R-  
SPEAKER  
R
L
L- R-  
SPEAKER  
R
L
L- R-  
SPEAKER  
R
L
L- R-  
SPEAKER  
AMPLIFIER  
SPEAKER 10 SPEAKER  
9
8
7
6
5
4
3
2
Unswitched AC Outlet  
16V AC Adapter  
(Included with MSA-10A)  
Figure 2  
Example of using the MSA-10A  
with a tube-type amplifier.  
150  
150  
1
2
3
4
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L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ L+ L- R- R+ L+ L- R- R+  
AMPLIFIER SPEAKER 10 SPEAKER SPEAKER SPEAKER SPEAKER SPEAKER SPEAKER SPEAKER SPEAKER SPEAKER  
9
8
7
6
5
4
3
2
1
NILES AUDIO CORPORATION – 1-800-BUY-HIFI  
3
 
LIMITED WARRANTY  
NILES AUDIO CORPORATION (“NILES”) WARRANTS ITS ACTIVE PRODUCTS (THOSE REQUIRING AC OR BATTERY  
POWER) TO THE ORIGINAL PURCHASER TO BE FREE OF MANUFACTURING DEFECTS IN MATERIAL AND  
WORKMANSHIP FOR A PERIOD OF TWO YEARS FROM DATE OF PURCHASE.  
THIS WARRANTY IS SUBJECT TO THE FOLLOWING ADDITIONAL CONDITIONS AND LIMITATIONS. THE WARRANTY  
IS VOID AND INAPPLICABLE IF NILES DEEMS THAT THE PRODUCT HAS BEEN USED OR HANDLED OTHER THAN IN  
ACCORDANCE WITH THE INSTRUCTIONS PROVIDED BY THE MANUFACTURER, INCLUDING BUT NOT LIMITED TO  
DAMAGE CAUSED BY ACCIDENT, MISHANDLING, IMPROPER INSTALLATION, ABUSE, NEGLIGENCE, OR NORMAL  
WEAR AND TEAR, OR ANY DEFECT CAUSED BY REPAIR TO THE PRODUCT BY ANYONE OTHER THAN NILES OR AN  
AUTHORIZED NILES DEALER.  
TO OBTAIN WARRANTY SERVICE, TAKE THE UNIT TO THE NEAREST AUTHORIZED NILES DEALER, WHO WILL TEST  
THE PRODUCT AND IF NECESSARY, FORWARD IT TO NILES FOR SERVICE. IF THERE ARE NO AUTHORIZED NILES  
DEALERS IN YOUR AREA, YOU MUST WRITE TO NILES AND INCLUDE YOUR NAME, MODEL AND SERIAL NUMBER  
OF YOUR UNIT, ALONG WITH A BRIEF DESCRIPTION OF THE PROBLEM. A FACTORY RETURN AUTHORIZATION  
NUMBER WILL BE SENT TO YOU. DO NOT RETURN ANY UNIT WITHOUT FIRST RECEIVING WRITTEN AUTHORIZATION  
AND SHIPPING INSTRUCTIONS FROM NILES.  
IF THE ABOVE CONDITIONS ARE MET, THE PURCHASER’S SOLE REMEDY SHALL BE TO RETURN THE PRODUCT TO  
NILES, IN WHICH CASE NILES WILL REPAIR OR REPLACE, AT ITS SOLE OPTION, THE DEFECTIVE PRODUCT WITHOUT  
CHARGE FOR PARTS OR LABOR. NILES WILL RETURN A UNIT REPAIRED OR REPLACED UNDER WARRANTY BY  
SHIPPING SAME BY ITS USUAL SHIPPING METHOD FROM THE FACTORY (ONLY) AT ITS EXPENSE WITHIN THE  
UNITED STATES OF AMERICA. THERE ARE NO OTHER WARRANTIES, INCLUDING WITHOUT LIMITATION, EITHER  
EXPRESS OR IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, WITH  
RESPECT TO THE PRODUCT.  
REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE CONSUMER/  
PURCHASER. NILES SHALL NOT BE RESPONSIBLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES EXCEPT  
TO THE EXTENT PROVIDED (OR PROHIBITED) BY APPLICABLE LAW.  
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES,  
SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND  
YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE.  
FOR THE NAME OF YOUR NEAREST AUTHORIZED NILES DEALER CONTACT:  
NILES AUDIO CORPORATION, P.O. BOX 160818, MIAMI, FLORIDA 33116-0818.  
Please fill in your product information and retain for your records.  
Model______________________ Serial No.___________________ Purchase Date________  
4
 
WARRANTY REGISTRATION CARD  
Model Purchased_________________________________________________________  
Serial Number ___________________________________________________________  
Date Purchased (month/day/year)_____________________________________________  
Dealer Name and Location __________________________________________________  
______________________________________________________________________  
Dr.  
Miss  
Mr.  
Mrs.  
Ms.  
Name__________________________________________________________________  
Address________________________________________________________________  
______________________________________________________________________  
City_______________________________________State________________Zip______  
Telephone (  
) _________________________________________________  
Please take a moment to fill out our warranty registration card. The information helps us to get to  
know you better and develop the products you want  
Age:  
Musical tastes:  
(Please check all  
that apply)  
What magazines  
Do you . . . ?  
Under 25  
do you read?  
Own a House. If yes,  
25-34  
1. ________________  
how many square feet?  
35-44  
Alternative  
2. ________________  
3. ________________  
45-54  
55 & over  
Classical  
Country  
Own a Town House/  
Jazz  
Condominium/Co-op  
Income:  
New Age  
Rent an Apartment  
Rent a House  
Who will install  
the product?  
Under $24,999  
Popular  
$25,000-$44,999  
$45,000-$74,999  
$75,000-$99,999  
$99,999-$129,999  
Over $130,000  
R&B  
Custom Installer  
Rock  
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receiving literature on  
other Niles products?  
Electrician  
Other _____________  
Friend  
Myself  
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about Niles?  
Yes  
No  
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Occupation:  
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capabilities that you would  
like to see introduced?  
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the purchase of your Niles  
product? (Please check  
all that apply)  
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®
BL E N D I N G HI G H FI D E L I T Y AN D AR C H I T E C T U R E  
N i l e s A u d i o C o r p o r a t i o n  
1 2 3 3 1 S . W . 1 3 0 S t r e e t M i a m i , F l o r i d a 3 3 1 8 6  
©2005 Niles Audio Corporation. All rights reserved. Niles, the Niles logos and  
Blending High Fidelity and Architecture are registered trademarks of Niles Audio Corporation.  
All other trademarks are the property of their respective owners. 12/05 DS00012ACN  
 

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