Viking M15W Instructions for use

The M15W is designed to add more paging
power to almost any amplified paging product, or
it may be used as a primary paging amplifier.
Audio can be input from a 600 ohm source or
from an 8-ohm amplified source. The 15 watt
output can drive an eight to four ohm load, or two
separate two-ohm loads, which simplifies instal-
lation of up to eight 8-ohm
speakers. A power adapter
and one 25AE Paging Horn
are included.
Note: The M15W is NOT compatible with talkback paging prod-
ucts such as Viking’s HF-2WC and HF-3W.
Add More Power to Your Existing
Paging System
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• Paging volume control
• Tone control
• 600 ohm input
• 8 ohm input
• 15 watts of paging power
Power: 120V AC/13.8 VAC 1.25A, UL listed adapter provided
Dimensions: 133mm x 89mm x 44mm (5.25” x 3.5” x 1.75”)
Shipping Weight: 1.0 kg (2.2 lbs)
Environmental: 0° C to 32° C (32° F to 90° F) with 5% to 95%
non-condensing humidity
Paging Output: 15 watts - powers up to (8) 8-ohm speakers
Frequency Response: 100 - 10K Hz
Sound Pressure: 118 db @ 1 meter
Speakers: (1) 25AE 8-ohm paging horn included, (8) maximum
Maximum Speaker Run: 91m (300 ft) maximum 18 AWG
Connections: 8 position screw terminal block
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• Increase the power range of these Viking
products: PA-2A, CPA-7B, M2W, DVA-2WA
• Add paging amplification to these Viking
products: K-600D, CTG-1, MTG-10, PI-1,
K-2000-DVA, FBI-1A, RAD-1 and ZPI-4 (in
4-amplifier mode only)
• Use as a primary paging amplifier from a
600-ohm source
• Use as an additional amplifier from an 8 ohm
source
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Model 25AE
Model M15W
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M15W
M15W
Paging Power
Amplifier
December 30, 2005

The M15W amplifier output appears across pins 1 & 4 which can drive 8 to 4-ohm loads. Pins 2 & 3 are internally shorted
which allows series connection of two lower impedance loads, to still maintain a 4 to 8-ohm load across the amplifier out-
put, as shown.
1 2 3 4
(7) or (8) 8-ohm
Speakers
2 Ohms
Total
2 Ohms
Total
1 2 3 4
(4) or (6) 8-ohm
Speakers
1 2 3 4
(3) or (5) 8-ohm
Speakers
1 2 3 4
(1) or (2) 8-ohm
Speakers
MODEL M15W
TONE
CONTROL
PAGING
VOLUME
VIKING
ELECTRONICS
HUDSON, WI 54016
LOW HIGH MIN MAX
PAGING
POWER AMPLIFIER
POWER 13.8V AC
POWER
LED
OUTPUT INPUTS
15 WATT
AMPLIFIER 600
OHM
8
OHM
12345678
©
VIKING
Connect to
existing paging
amplifier output
-or-
To speakers,
configurations
shown to the
left and below.
Connect to 600 ohm paging
port or other paging source
Existing Paging
Amplifier
1 2 3 4
Up to (8) 8-ohm Speakers
Installed In Series
Use the chart below to figure each paging horn's
sound pressure level at 1 meter for the number of
speakers installed in series.
# of
Speakers
2
3
4
5
6
7
8
Sound
Pressure
112 dB
108 dB
106 dB
104 dB
102.5 dB
101 dB
100 dB
13.8V AC
Adapter
(included)
I
In ns st ta al ll la at ti io on n
O
Op pe er ra at ti io on n
Due to the dynamic nature of the product design, the information contained in this document is subject to change without notice. Viking Electronics, and its affiliates and/or
subsidiaries assume no responsibility for errors and omissions contained in this information. Revisions of this document or new editions of it may be issued to incorporate
such changes.
Fax Back Doc 481 ZF301490 Rev BPrinted in the U.S.A.
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The M15W is a power amplifier that amplifies the signal from a line level source (600 ohm input) or an already amplified
source (8 ohm input). The signal passes through a gain adjustment (paging volume), a tone control and a high-efficiency
class D amplifier. The amplifier is short circuit protected.
To keep background hum noise to a minimum, set the audio source to a loud setting and adjust the paging volume control
on the M15W for the desired speaker volume level.
(1) 25AE Paging Horn included.
Additional 25AE Paging Horns
and 30AE Ceiling Speakers
may be added.
?Need More Information on Doorboxes?
Call [phone] and select 170.
IMPORTANT: Electronic devices are suscep-
tible to lightning and power station electrical
surges from both the AC outlet and the telephone
line. It is recommended that a surge protector be
installed to protect against such surges. Contact
Panamax at [phone] or Electronic
Specialists Inc. at [phone].
!