CHAPTER 1

CHAPTER 1: POWER REQUIREMENTS

The M2D and M2D-Sub loudspeakers represent advanced technology with equally advanced power capabilities. Understanding power distribution, voltage and current requirements, as well as electrical safety issues, is critical to their safe operation and deployment.

AC POWER

The M2D and M2D-Sub loudspeakers use a PowerCon® 3-pole AC mains system with locking connectors to prevent accidental disconnection or a multipin VEAM™ male power connector (Figures 1.1, 1.2 and 1.3).

 

 

 

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PowerCon connector

Figure 1.1. M2D user panel with PowerCon connector

CAUTION: Ensure that you select the correct power plug for the AC power in the

area in which you use your loudspeaker.

When AC power is applied to the M2D or M2D-Sub loudspeaker, the Intelligent AC power supply automatically selects the correct operating voltage, allowing the loudspeakers to be used internationally without manually setting voltage switches. The Intelligent AC supply performs the following protective functions to compensate for hostile conditions on the AC mains:

Suppresses high-voltage transients up to several kilovolts

Filters common mode and difference mode radio frequencies (EMI)

Sustains operation temporarily during low-voltage periods

Provides soft-start power-up, which eliminates high inrush current

AC Power Distribution

PowerCon connector

 

 

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Refer servicing to qualified personnel. To reduce the risk of fire or electric shock

do not expose this appliance to rain or moisture.

ATENCI”N: ACCESO INTERNO SOLO AUTHORIZADO A PERSONAL T…CNICO CALIFICO

ACHTUNG: GEH�USE NICHT OFFENE WARTUNG UND REPARATUR NUR DURCH ELEKTROF�CHKRAFTE

ATTENTION: ENTRETIENET REPARATIONS INTERNES NE SONT AUTORISEES QU'AU PERSONNEL TECHNIQUE QUALIFI…

U.K. WARNING: THIS APPARATUS MUST BE EARTHED. NO OPERATOR SERVICEABLE PARTS INSIDE.

REFER SERVICING TO QUALIFIED PERSONNEL.

Auto-Voltage Select

95-125V ~

208-235V~

50-60Hz

50-60Hz

1400W RMS MAX 1400W RMS MAX

Operational Voltage Range:

Turn on 85V~ Turn off 134V~

Turn on 165V~ Turn off 264V~

All amplifier modules and directly associated audio equipment (mixing consoles, processors, etc.) must be connected to the AC power distribution in a proper manner, preserving AC line polarity and connecting earth ground such that all grounding points are connected to a single node or common point using the same cable gauge as the neutral and line(s) cable(s).

Improper grounding connections between loudspeakers and the rest of the audio system may produce noise, hum

Meyer Sound, Berkeley, CA USA

Figure 1.2. M2D-Sub user panel with PowerCon connector

line (brown)

ground (green/yellow)

neutral (blue)

Figure 1.3. Optional VEAM multipin connector power pin-out

and/or serious damage to the input/output stages in the system’s electronic equipment.

CAUTION: Before applying AC to any Meyer Sound self-powered loudspeaker, be

sure that the voltage potential difference between neutral and earth ground is less than 5 volts AC.

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