CHAPTER 2: POWER REQUIREMENTS
17
ELECTRICAL SAFETY GUIDELINES
Make sure to observe the following important electrical and
safety guidelines.
•The powerCON 20 connector should not be engaged or
disengaged when under load or live.
•The 750-LFC loudspeaker requires a grounded outlet.
Always use a grounded outlet and plug.
•Do not use a ground-lifting adapter or cut the AC cable
ground pin.
•Do not exceed the current capability of the 20 A AC Input
connector for the loudspeaker. When looping
loudspeakers, consider the total current draw for all
loudspeakers on the circuit, including the first loudspeaker.
•Make sure the AC power cable for the loudspeaker has the
appropriate power plug (on the other end) for the area in
which you will operate the loudspeaker. In addition, the AC
power cable must be rated for the total current draw of all
loudspeakers looped from the power source.
•Do not operate the unit if the power cable is frayed or
broken.
•Keep all liquids away from 750-LFC loudspeakers to avoid
hazards from electrical shock.
•Use the cable rings (see “Cable Rings” on page 20) on the
rear of the 750-LFC cabinet to reduce strain on the AC
power cable (and audio cables). Do not use the cable rings
for any other purpose.
MDM-832 DISTRIBUTION MODULE
The optional MDM-832 Distribution Module simplifies
installation by using regular or composite cables to route AC
power, balanced audio, and RMS to multiple LINA and
750-LFC units. This approach reduces setup and tear-down
time for portable systems, and cable clutter for fixed
installations.
Meyer Sound offers the MDM Load Calculator program that
estimates AC power and AC load. This program helps users
design the AC distribution system using the MDM-832 (or the
larger MDM-5000) distribution modules.
The MDM Load Calculator program and the MDM-832
Operating Instructions (which includes information for the
MDM-832 and MDM-5000) are available for download on the
Meyer Sound website:
meyersound.com/product/mdm/#software
Earth ground
Chassis ground
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