The MM-4XP miniature loudspeaker is a self-powered loudspeaker designed for high-quality distributed systems. Housed in a compact aluminum enclosure, the MM-4XP is especially suitable for installations involving space limitations and visibility concerns, such as fill and spot coverage, and hidden locations like chancel steps in a house of worship.Its flexible and easy-to-configure mounting options, as well as its ability to effortlessly reproduce both speech and music, make it an excellent choice for fixed applications, theatrical presentations (stage lip frontfill), and small portable systems for corporate AV solutions.The MM-4XP meets the same exceptional performance standards established by its predecessor, the MM-4, and adds the advantages of self-powered systems, with onboard amplification and signal processing.The MM-4XP's proprietary 4-inch cone transducer, manufactured at Meyer Sound's Berkeley factory, delivers an impressive maximum peak SPL of 113 dB, and has a wide operating frequency range of 120 Hz to 18 kHz with very low distortion.The MM-4XP exhibits the same high intelligibility and flat frequency and phase responses for which Meyer Sound loudspeakers are known.Peak and rms limiters regulate loudspeaker temperatures and excursion, ensuring that the MM-4XP performs exceedingly well even when driven into overload.The MM-4XP's amplifier and signal-processing circuits are designed to store DC power and tolerate voltage drops, thereby accommodating light-gauge cables and long cable runs.The MM-4XP receives balanced audio and DC power from a SwitchCraft EN3 connector on its rear panel.The sealed, 5-pin EN3 connector provides protection against harsh environmental conditions when the MM-4XP is installed outdoors.MM-4XP loudspeaker systems require an MPS-488 external power supply.The single-space 19-inch rack unit receives eight channels of balanced audio from its XLR female inputs and routes the audio, along with 48 V of DC power, to its eight channel outputs.The MPS-488 channel outputs, equipped with either 5-pin Phoenix connectors or 5-pin EN3 connectors, can deliver DC power to the MM-4XP loudspeakers at cable lengths of up to 300 feet with just 1 dB of loss in peak SPL using 18 AWG wire.The use of composite multi-conductor cables (such as Belden 1502) allows a single cable to carry both audio and DC power to the MM-4XP. Longer cable lengths are possible for moderate applications that don't drive the loudspeakers to maximum output, or for installations with heavier wire gauges.Powering the MM-4XP from a unipolar external power source reduces induced noise significantly and eliminates the need for wiring conduits.MM-4XP loudspeaker systems require an MPS-488HP external power supply. The MPS-488HP rackmount 8-channel power supply is ideal for larger installations with multiple loudspeakers and distributes power and audio signal, while the compact MPS-481 is designed for powering single loudspeakers individually.
Extremely compact enclosure
Self-powered
Wide-range frequency response at ultralow distortion
High speech intelligibility, and punch and bandwidth for music
Amazing SPL/size ratio
Enables runs of hundreds of feet of light-gauge cable
Applications
Space-sensitive fill and spot coverage
Reinforcement concealed in steps and other hidden locations
High-quality distributed systems for paging and music
Small, portable systems for corporate AV
Exhibit audio for museum displays
Rackmountable - Yes
Powered (Active) - Yes
Spec Sheet available - Yes
Maximum Frequency Response (Bandwidth):
18 kHz
Maximum Frequency Response (Bandwidth):
18000 Hz
Minimum Frequency Response (Bandwidth):
120 Hz
Minimum Frequency Response (Bandwidth):
0.12 kHz
Construction:
Perforated steel, Extruded aluminum
Coverage Horizontal:
80 degrees
Coverage Vertical:
80 degrees
Impedance:
10000 ohm
Maximum SPL (Sound Pressure Level):
113 dB
Power Handling:
100 Watt
Active Power:
220 Watt
Current Draw:
2.20 Amps
DC Voltage:
48 Volts
Peak Power:
440 Watt
Depth:
5.72 in
Height:
4.04 in
Width:
4.04 in
Product Weight:
4.20 lbs
Color:
Black
Frequency Response:
135 Hz - 17 kHz ±4 dB
Phase Response:
400 Hz - 20 kHz ±45 Degree
Signal to Noise:
>110 dB
Overall Length:
Female XLR input with male XLR loop outputor VEAM all-in-one connector (integrates AC, audio and network)
Input Impedance:
10 kohms differential between pins 2 and 3
Wiring:
Pin 1: Chassis/earth through 220 k Ohms, 1000 pF, 15 V clamp network, to provide virtual ground lift at audiofrequencies, Pin 2: Signal +, Pin 3: Signal -, Case: Earth ground and chassis
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