Lencore Magnacast II User manual

INSTALLATION
MANUAL
MAGNACAST II

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1.0 INTRODUCTION
Magnacast II series speaker systemsare designed for indoor or outdoor wet applications.The
Magnacast II produces 90 degrees of acoustic energy and excels in high ambient noise
environments. It has an operating temperature range of -20°C to 60°C.
1.2. Magnacast II Distributed Audio Speaker
The Magnacast II Distributed Audio speaker has five field-selectable power taps that run off of
25V, 70V, and 100VRMS audio systems. The taps can easily be changed by turning a knob.
The speaker has an integrated DC blocking capacitor that allows the fire alarm control panel to
conduct circuit supervision. The speaker was designed to meet UL Standard 1480 (Speakers
for Fire Protective Signaling Systems) and ULC S541 (Speakers for Fire Alarm Systems).
Magnacast II Distributed Audio Specifications:
Broadband
100V Tap Setting Speaker Output @ 1 meter (dB)
45W 139
32W 137
24W 136
16W 134
8W 131
70V Tap Setting Speaker Output @ 1 meter (dB)
24W 136
16W 134
12W 133
8W 131
4W 129
25V Tap Setting Speaker Output @ 1 meter (dB)
3W 128
2W 126
1.5W 124
1W 122
.5W 119
Power Tap Selections and dB Rating

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ITEM PART NUMBER DESCRIPTION ASSEMBLY CONTAINS PARTS
1 G1068 Magnacast II Wall Mount Bracket
261069
3 G1073
4 G1052
N/A
N/A
N/A
N/A
5 G1151
6 G1152
Magnacast II Dual Unit Adapter
Magnacast II Pole Mount Adapter
Magnacast II Indoor/Outdoor Speaker, 24 watt
Magnacast II Speaker with Wall Mount Bracket
Two Magnacast II Speakers with Dual Unit Adapter and Wall Mount Bracket
G1052 & G1068
(2) G1052, G1068, G1069

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Input voltage: 25,70,100 VRMS
Frequency Response: 400Hz – 7000Hz
Directionality: ±30 degrees
Max Supervisory Voltage: 50VDC
Weight: 9 lbs
Dimensions: 10.0” H X10.0” WX 10.7” L
Suitable forOutdoor Use
CAUTION: EXCEEDING THE MAXIMUM RATINGS OF THE SPEAKER WILL CAUSE
EXCESSIVE DISTORTION AND MAY CAUSE PERMANENT DAMAGE TO THE SPEAKER
AND ITS INTERNAL COMPONENTS.
2.0 MAGNACAST II MOUNTING
WARNING: WHEN MOUNTING OUTSIDE MAKE SURE THAT THE SUPPORT SYSTEM
USED HAS THE PROPER WIND LOAD RATING AND COMPLIES WITH LOCAL
STANDARDS AND CODES.
WARNING: THIS IS A FIRE ALARM DEVICE – DO NOT PAINT (NE PAS PEINTURER –
DISPOSITIF D’ALARME)
The Magnacast II comes standard with a mounting bracket from which to hang the unit. The
Magnacast II is provided with three feet of electrical leads ina ¼Trade Size*flexible conduit
exiting the back ofthe unit.
Figure 2: Mounting Bracket
*¼ Trade Size Conduit has a nominal Ø.39” ID / Ø.57” OD
Mounting Bracket
¼ Trade Size
Conduit

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2.1. Single Mount
The Magnacast II isintended to be mounted from the mounting bracket. A typical
mount will use a wall bracket. A double mounting bracket is available for hanging two
speakers together for 180° ofbroadcast coverage (seesection 2.2).
1) To mount a single Magnacast II,attach the mounting bracket to the wall bracket
(optional accessory or customer supplied) with three ¼”screws/bolts (Figure 3).
Figure 3: Attaching Wall Mounting Bracket
2) Attach the mounting bracket to the wall or pole with appropriate hardware according to
local codes and safety practices.

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Figure 5: Attaching Dual Speaker System to a Wall Mounting Bracket
2.2. Dual Mount
1) To mount two Magnacast II systems to the same wall mounting bracket, use an optional
Dual Unit Mounting Adapter. Attach the dual mount plate to the Magnacast II mounting
brackets with the hardware provided in the kit(Figure 4).
Figure 4: Attaching a Dual Mount Plate
2) Attach the wall mount bracket to the middle holes of the dual mount plate with three ¼
screws/bolts (Figure 5).

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3) Attach the mounting bracket to the wall or pole with appropriate hardware according to
local codes and safety practices.
2.3. Tether Attachment
1) Atether cable may be attached to all speakers by looping the cable through the large hole
in the Magnacast IImounting bracket (Figure 6).
Figure 6: Tether Attachment Point

fluctuating topography, or foliage may affect actual performance.
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3.0 CHANGING THE POWER LEVEL – Distributed Audio version only
1) Change the power level by rotating the power selection knob to the desired choice
(Figure 7).
Figure 7: Power Selection Knob
4.0 FIELD WIRING
4.1. Cable Routing
All Magnacast II systems come with a three-foot long weather-proof ¼Trade Size flexible
conduit and 42” leads.
Route the conduit to a junction box approved by local electrical codes and standards.
Follow your integrator’s instructions for installing into an appropriate junction system.

fluctuating topography, or foliage may affect actual performance.
The information contained herein is proprietary to Lencore Acoustics Corp. and copyright protected. No part of this manual can be
copied, used or distributed without prior authorization from Lencore Acoustics Corp. ©Copyright 2018
Lencore Acoustics Corp.
1 Crossways Park Drive West
Woodbury, NY 11797
516-682-9292
[email protected]
www.lencore.com