Standard Horizon MLS-300 Owner's Manual
TEMPLATE for the MLS-300
MLS-300
External Speaker
The MLS-300 External Loudspeaker is a high performance communications speaker matching the impedance and output requirements of most Standard Horizon transceivers.
INSTALLATION
1) MOUNTING BRACKET INSTALLATION
1. Remove the MLS-300 from the bracket by removing the
two Mounting Bracket Knobs.
2. Choose a place to mount the MLS-300.
3. Use the bracket as a template to mark the locations of the
mounting holes.
4. Use a 5.2-mm (17/64”) bit to drill the holes, and secure
the bracket with the supplied screws, spring washers, flat
washers, and nuts (Figure 1 & 2).
5. Insert the MLS-300 into the bracket with the Mounting
Bracket Knobs which were removed in step 1.
6. Set the MLS-300 to the preferred angle, then tighten the
Mounting Bracket Knobs to fasten the MLS-300 to the
bracket.
7. Route and secure the speaker cable from the MLS-300 to
the Marine VHF. Connect the WHITE wire of the speaker
cable to the marine VHF’s positive (+) external speaker
output and the shield of the speaker cable to the negative
(–) external speaker connection.
You may reverse
the position of the
bracket.
Use this template to mark the location
where the round hole for the flush
mount is to be cut.
φ
5
φ
95
106 mm
REPLACEMENT PARTS
Mounting Bracket (Black): RA0636400
Mounting Bracket (White): RA0636500
Mounting bracket Knobs (Black): RA045910A
Mounting bracket Knobs (White): RA043770A
Mounting bracket mounting hardware: U9900147
SPECIFICATIONS
Speaker Impedance:4 Ω
Maximum Power Input: 10 W
Speaker Cable Length: 6.5 feet (2 m)
Marine Division of VERTEX STANDARD
US Headquarters
10900 Walker Street, Cypress, CA 90630, U.S.A.
www.standardhorizon.com
Figure 1 (Desktop Mount)
Figure 2 (Wall Mount)
106 mm
EAE31X100
2) FLUSH MOUNT INSTALLATION
1. Remove the MLS-300 from the bracket by removing the
two Mounting Bracket Knobs, then remove the rear case
of the MLS-300 from the main body by removing the four
screws (Figure 3.).
2. Assemble the supplied M4x50 Screw, Nut, and Washer as
the Figure 4.
3. Use the supplied template to mark the location where the
round hole is to be cut. Confirm the space behind the dash
or panel is deep enough to accommodate the MLS-300
(at least 2.8 inch (70 mm) deep).
4. Cut out the round hole (one large hole and four small
mounting holes) and inset the MLS-300 from the front
side.
5. Referring to Figure 5, pass through the four M4x50 Screws
(with Nut and Washer) into the mounting holes on the panel
from the back side and turn the M4x50 Screws five times.
6. Turn the four Nuts to adjust the tension so that the MLS-
300 is tight against the mounting surface.
7. Route and secure the speaker cable from the MLS-300 to
the Marine VHF. Connect the WHITE wire of the speaker
cable to the marine VHF’s positive (+) external speaker
output and the shield of the speaker cable to the negative
(–) external speaker connection.
Figure 3
Washer
Wall thickness + 1 inch
Figure 4
Nut
M4x50 Screw
Figure 5
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