Meyer Sound MM-4XPV-3 4" Active Speaker, Volume Control, 3-Pin Input

Directional Miniature Self-Powered Loudspeaker

Specifically designed for high-quality distributed systems in reverberant spaces, the directional polar pattern of the MM-4XPD, especially at low frequencies, significantly reduces room excitation and increases intelligibility.

Patent-pending technology yields a high degree of attenuation between the front and rear of the loudspeaker, achieving a directional polar response using passive acoustical techniques, with the MM-4XP having the added advantage of a hypercardioid coverage pattern.

The MM loudspeakers feature a single 4-inch cone transducer, designed and manufactured at Meyer Sound's Berkeley, California factory, delivering an impressive maximum peak SPL of 113dB and a wide operating frequency range of 120Hz to 1 kHz with very low distortion.

Self-powered technology eliminates amplifier racks, long loudspeaker cables, and any calibration of gain and crossover settings. The system can be rigged and ready in minutes.

The MM‑4XPD directional miniature self-powered loudspeaker with IntelligentDC technology was specifically designed for higquality distributed systems in reverberant spaces. The directional polar pattern of the MM-4XPD, especially at low frequencies, significantly reduces room excitation and increases intelligibility.

Its flexible and easy-to-configure mounting options, as well as its ability to effortlessly reproduce both speech and music, make the MM‑4XPD an excellent choice for large distributed systems, theatrical presentations, museums, and small portable systems for corporate audio-visual, where intelligibility is critical.

The MM‑4XPD meets the same exceptional performance standards as the MM‑4XP with the added advantage of a hypercardioid coverage pattern. Patent-pending technology yields a high degree of attenuation between the front and rear of the loudspeaker, achieving a directional polar response using passive acoustical techniques. Even at low frequencies, the breakthrough technology yields 10dB of attenuation at the rear of the loudspeaker whileretaining directional dispersion at high frequencies.

Applications:

• Restaurants, bars, and highly reverberant public spaces
• Large distributed systems
• Trade show presentations

Features:

• Directional hypercardioid pattern provides 10dB of attenuation between the front and rear of the loudspeaker, even at low frequencies
• Directional pattern reduces room excitation, desirable in highly reverberant spaces
• Extremely compact size fits in small spaces
• Patent-pending, passive, single-driver directional technology minimizes energy consumption, weight, and cabinet volume
• Convenient U-bracket enables quick and easy mounting

Specifications:

• Acoustic
  • Operating Frequency Range: 120Hz – 18kHz
  • Frequency Response: 135Hz – 17kHz ±4dB
  • Phase Response: 330Hz – 20kHz ±45°
  • Linear Peak SPL: 111.5dB (M-noise), 109dB (Pink noise), 111dB (B-noise)
• Coverage
  • Hypercardioid response with
  • up to 500 Hz - 120°
  • (500 Hz – 4 kHz); 80°
  • (4 kHz – 10 kHz ±10°)
• Transducers
  • One 4-inch cone driver; 4Ω nominal impedance
• Audio Input
  • Type: Differential, electronically balanced
  • Maximum Common Mode Range: ±5VDC
  • Connectors: SwitchCraft EN3 5-pin male (two pins for 48VDC power, three pins for balanced audio)
  • Input Impedance: 10kΩ electronically balanced
• Wiring
  • Pin 1: DC power (–)
  • Pin 2: DC power (+)
  • Pin 3: Audio shield, chassis/earth
  • Pin 4: Audio (–)
  • Pin 5: Audio (+)
• Nominal Input Sensitivity: –2.5dBV (0.75V rms) continuous average is typically the onset of limiting for noise and music
• Input Level Audio: source must be capable of producing +16dBV (6.3V rms) into 600Ω to produce maximum peak SPL over the operating bandwidth of the loudspeaker
• Amplifier
  • Type: Class-D
  • Total Output Power: 440W peak
  • THD, IM, TIM < 0.02%
  • Cooling: Convection
• AC Power
  • Connector: SwitchCraft EN3 5-pin male (two pins for 48VDC power, three pins for balanced audio)
  • Safety Agency Rated Voltage Range: 48VDC
  • CURRENT DRAW
  • Idle Current: 0.16A rms
  • Maximum Long-Term Continuous Current (>10 sec): 0.7A rms
  • Burst Current: 2.2A rms
  • Maximum Instantaneous Peak Current: 2.35A peak
  • Inrush Current: less than 7.0A peak
• Physical
  • Dimensions W: 4.04in (103mm) x H: 4.04in (103mm) x D: 7.95in (202mm) D with connector: 10.20in (259mm)
  • Weight: 5.2lbs (2.4kg)
  • Enclosure: Extruded aluminum with black anodized finish
  • Protective Grille: Perforated steel
• Mounting: Two 3/8in -16 side inserts; optional MUB-MM4XPD U-bracket