AMPLIFIER
AUDIO LINE
Surge Protection
Speakers and Audio Equipment
LA-100
70 Volt Outdoor Speakers
L
R
AMPLIFIER
LA-043
Audio
Low Impedance Speakers
Source
And
LA Series
Equipment installed outdoors are effective antennae for power impulses created by lightning. Speakers mounted in stadiums,
on light poles, on tops of buildings or on the ground are great examples. Amplifiers and other audio source equipment in the
energy surge’s path to ground often suffer the greatest damage in such events. Even lightning striking near an audio installation can induce high current into speaker leads and cause catastrophic damage. Protecting that equipment is simple and
inexpensive with LA Series surge protectors from Juice Goose.
LA Series models are designed to protect two pairs of speaker leads (four wires). The mounting
base (Item PCB-1B, sold separately) also has a connection for a ground wire. The unit is rated
for operating currents up to five amps (350 watts at 70 volts) for each of two wire pairs. For
higher current requirements terminals may be bridged to protect a single pair of speaker leads
with maximum current up to ten amps. The LA Series includes models designed for various peak
voltages from under 15 to 100. (See the LA Selection Chart for additional information.)
The LA Series is designed with three stage component protection - varistors (MOV), wire wound inductors
and silicone avalanche diodes (SAD) - to provide sub nanosecond response to surges up to 5,000 amps.
This design is tuned to have ultra low impedance of only 0.02 ohms per wire pair.
LA 100
with PCB1B
Base
For additional information:
713-772-1404
info@juicegoose.com
www.juicegoose.com
Selection Chart
LA Surge Protector
4 Ohm
8 Ohm
16 Ohm
Wattage
Voltage
(RMS)
10 6.3 1.6 015
20 8.9 2.2 015
40 12.6 3.2 020
50 14.1 3.5 030
75 17.3 4.3 030
100 20.0 5.0 * 030
150 24.5
200 28.3 7.1 * 043
10 8.9 1.1 015
20 12.6 1.6 020
40 17.9 2.2 030
50 20.0 2.5 030
75 24.5 3.1 043
100 28.3 3.5 043
150 34.6 4.3 060
200 40.0 5.0 * 060
10 12.6 0.8 020
20 17.9 1.1 030
40 25.3 1.6 043
Voltage
(Peak)
8.9
12.6
17.9
20.0
24.5
28.3
34.6
40.0
12.6
17.9
25.3
28.3
34.6
40.0
49.0
56.6
17.9
25.3
35.8
Amperage
(per speaker)
6.1 *
LA Model
043
*
Requires
Bridging
The LA surge
protector is
designed for two
pairs of speaker
leads plus a
connection to
ground.
The device is
rated for a maximum current
load of 5 amps
per pair of
leads.
For a 10 amp
capacity see
separate instructions for bridging connections.
50 28.3 1.8 043
75 34.6 2.2 060
100 40.0 2.5 060
150 49.0 3.1 100
200 56.6 3.5 100
70 Volt
10 70.0 0.1 100
20 70.0 0.3 100
40 70.0 0.6 100
50 70.0 0.7 100
75 70.0 1.1 100
100 70.0 1.4 100
150 70.0 2.1 100
200 70.0 2.8 100
40.0
49.0
56.6
69.3
80.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
100.0
LA Series Surge Protection
Features and Installation
The LA Series surge protector has a gold plated card edge designed to mount
into the PCB1B gold plated female connector. (Note: PCB1B base is sold
separately.) The base assembly can be mounted to any stable, flat surface. It
should be located close to the protected equipment.
When the LA protection module is inserted in the base the circuits connected to
the base are conducted through the protector in a serial manner from the four
“Field Side” terminals to the four “Equipment Side” terminals. Either terminals 1 or
LA Series
with PCB Base
nology. In cases of extreme exposure to lightning or repeated exposure to induced surges the main
surge protection component may need to be replaced. Typically, this device can withstand and protect
against 50 occurrences of 2,000 amp surges. When replacement is required, simply unplug the main
protection module from the base and replace it with a new one.
10 of the PCB1B base should be attached to an approved ground (using 12 or 10
AWG conductor) in order for the surge protection device to work.
This device is fast acting and effective, employing the best surge protection tech-
Specifications
UNPROTECTED
FIELD
SIDE
Peak Surge Current (10 times)
5kA
8x20 us
Life Expectancy
8x20us (2kA)
50 Occurrences
(typ)
Response Time <1ns
Resistance .02 Ohm (typ)
Series Inductance 136 uh per pair
Terminal Wire Size 26 tp 10 AWG
10
9
Pair #1
7
5
Pair #2
3
1
8
Pair #1
6
4
Pair #2
2
PROTECTED
EQUIPMENT
SIDE
PCB1B
Mounting Base
For additional information:
713-772-1404
info@juicegoose.com
www.juicegoose.com
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