Meyer Sound has announced the debut of the MM-4XP miniature loudspeaker, a self-powered version of the MM-4 miniature wide-range loudspeaker. With a face measuring just four inches square, this compact product is designed for distributed systems where space is at a premium and in which a single light gauge cable can deliver both balanced audio and DC power over a long cable run of up to several hundred feet.
According to the company, the new MM-4XP’s flexible mounting options, ability to reproduce both speech and music with very low distortion, operating frequency range of 120 Hz to 18 kHz, and peak output of 113 dB SPL is designed for fixed installations. This versatile loudspeaker is designed particularly for stage lip frontfill, fill and spot coverage, installation in steps and other hidden locations, and small portable systems often used in corporate AV applications.
The MM-4XP has a single, proprietary, four-inch cone transducer. Peak and rms limiters regulate loudspeaker temperatures and excursion, which reportedly ensures that the MM-4XP performs well even when driven into overload.
Balanced audio and 48 V DC power from an MPS-488 external power supply are received on a five-pin Switchcraft EN3 connector. The EN3 connector has been successfully used on the weather-protected version of the MM-4 for years, and offers the dual advantages of small size and protection against adverse environmental conditions, facilitating use of the MM-4XP in outdoor applications. The use of composite multiconductor cables (such as Belden 1502R) allows a single cable to carry both audio and DC power to the MM-4XP.
The one-rack space MPS-488 external power supply is required for use of the MM-4XP. It provides 48 V DC power to up to eight MM-4XPs, while also routing eight channels of balanced audio from its XLR inputs to the five-pin EN3 connectors on its eight channel outputs.
The MM-4XP's amplifier and signal-processing circuits are designed to store DC power and tolerate voltage drops, enabling the delivery of high peak SPL without high instantaneous peak DC current draw. This accommodates light-gauge cables of lengths up to 500 feet to be used between an MPS-488 channel output and an MM-4XP. Powering the MM-4XP from a unipolar external power source reduces induced noise significantly and eliminates the need for wiring conduits.
The MM-4XP's extruded aluminum enclosure acts as a heat sink to dissipate heat from the driver's voice coil. The enclosure features a perforated steel grille, and is available in a standard black anodized finish, or, optionally, custom painted to match specific color schemes. An MM-4XP U-bracket is available for mounting the loudspeaker on walls and ceilings at adjustable angles.
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For information, please visit www.meyersound.com/.
