JL Audio M-MCPv3 Installation Instructions Manual
Installation Instructions for
M-MCPv3
fixed-mount fixtures for round pipes
PIPE MOUNTING FIXTURES (FIXED)
FOR ETXv3 ENCLOSED SPEAKER SYSTEMS
Included Hardware:
BOM ID Quantity Description
1* 1 Silicone Adhesive
2* 12
#8 x 1-1/4” Pan Head Screw
3* 12 #8 Flat Washer
4 2 Loctite® Red read-Locking Compound
5 2 Lower Fixture
6 2 Upper Fixture
7 8 1/4" Split Lock Washer
8 8 1/4 - 20 x 1-1/4” Machine Screw
9 4 5/16" Split Lock Washer
10 4 5/16 - 18 x 1-1/4” Machine Screw
* Supplied with ETXv3 speaker system.
NOTE: The M-MCPv3-2.000 Fixture and M770-ETXv3-SG-WH Enclosed Speaker
System are used in this manual for illustrative purposes only. The fixture
installation steps are the same for all ETXv3 Enclosed Speaker Systems and all
M-MCPv3 fixed-mount fixtures for round pipes.
Wiring Information (LED models only):
LED
LED
LED
LED
LED
LED
Fuse
Fuse
Fuse
Fuse
Fuse
Fuse
Blue
Blue
Yellow
Yellow
Blue
Blue
Yellow
Yellow
Blue
Blue
Yellow
Yellow
Blue
Blue
Yellow
Yellow
Blue
Blue
Yellow
Yellow
Blue
Blue
Yellow
Yellow
[GND]
[+12V]
[GND]
[+12V]
Example: One speaker pair of
LED circuits connected in parallel.
Fuse
Example: Two speaker pairs of
LED circuits connected in parallel.
Fuse
Wire Size Wire Color Use
16 AWG
Red/Stripe Speaker Positive (+)
Black/Stripe
Speaker Negative (–)
Red Not Used
20 AWG
Green Not Used
Blue LED Positive (+)
Yellow LED Negative (–)
NOTE: Not all wires may be used in normal applications.
• For marine installations, do not connect the speaker’s LED lights to the vessel’s
navigational lighting circuits.
• For short-circuit protection, install a supplied fuseholder onto EACH speaker’s BLUE (+12V)
LED power connection lead.
• Connect all BLUE (+12V) leads together (parallel) and connect to a switched +12V supply.
Connect all YELLOW (GND) leads together and connect to a negative ground or to the
NEGATIVE battery post.
• We recommend activating the speakers’ LEDs thru a lighting circuit that supplies +12V via
an existing switch. If an existing switched circuit is not available, you may install a dedicated
toggle/rocker style switch that will supply positive (+12V) power. Fuse this connection
according to how many LED circuits you have (LED circuits x 150 mA).
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