Specifications
ACOUSTICAL | |
Operating Frequency Range1 | 120 Hz – 18 kHz |
Frequency Response2 | 135 Hz – 17 kHz ±4 dB |
Phase Response | 330 Hz – 20 kHz ±45° |
Linear Peak SPL3 | 111.5 dB (M-noise) with crest factor >16.5 dB, 109 dB (Pink noise), 111 dB (B‑noise) |
COVERAGE | |
Hypercardioid response with <10 dB front‑to‑back ratio up to 500 Hz 120° (500 Hz – 4 kHz); 80° (4 kHz – 10 kHz ±10°) | |
TRANSDUCERS | |
One 4‑inch cone driver; 4 Ω nominal impedance | |
AUDIO INPUT | |
Type | Differential, electronically balanced |
Maximum Common Mode Range | ±5 V DC |
Connectors | SwitchCraft EN3 5‑pin male ( two pins for 48 V DC power, three pins for balanced audio) |
Input Impedance | 10 kΩ 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 | –2.5 dBV (0.75 V rms) continuous average is typically the onset of limiting for noise and music |
Input Level | Audio source must be capable of producing +16 dBV (6.3 V rms) into 600 Ω to produce maximum peak SPL over the operating bandwidth of the loudspeaker |
AMPLIFIER | |
Type | Class‑D |
Total Output Power4 | 440 W peak |
THD, IM, TIM | < 0.02% |
Cooling | Convection |
DC POWER5 | |
Connector | SwitchCraft EN3 5‑pin male (two pins for 48 V DC power, three pins for balanced audio) |
Safety Agency Rated Voltage Range6 | 48 V DC |
CURRENT DRAW | |
Idle Current | 0.16 A rms |
Maximum Long‑Term Continuous Current (>10 sec) | 0.7 A rms |
Burst Current (<1 sec) | 2.2 A rms |
Maximum Instantaneous Peak Current | 2.35 A peak |
Inrush Current | <7.0 A peak |
PHYSICAL | |
Dimensions | W: 4.04 in (103 mm) x H: 4.04 in (103 mm) x D: 7.95 in (202 mm) D with connector: 10.20 in (259 mm) |
Weight | 5.2 lb (2.4 kg) |
Enclosure | Extruded aluminum with black anodized finish |
Protective Grille | Perforated steel |
Mounting | Two 3/8 inch‑16 side inserts; optional MUB‑MM4XPD U‑bracket |
Notes
Recommended maximum operating frequency range. Response depends on loading conditions and room acoustics.
Free‑field, measured with 1/3 octave frequency resolution at 4 m.
Linear Peak SPL is measured in free‑field at 4 m referred to 1 m. Loudspeaker SPL compression measured with M‑noise at the onset of limiting, 2‑hour duration, and 50 °C ambient temperature is < 2 dB.
M-noise is a full bandwidth (10 Hz–22.5 kHz) test signal developed by Meyer Sound to better measure the loudspeaker’s music performance. It has a constant instantaneous peak level in octave bands, a crest factor that increases with frequency, and a full bandwidth Peak to RMS ratio of 18 dB. The presence of a greater‑than (>) symbol with regard to crest factor indicates it may be higher depending on EQ and boundary loading.
Pink noise is a full bandwidth test signal with Peak to RMS ratio of 12.5 dB.
B-noise is a Meyer Sound test signal used to ensure measurements reflect system behavior when reproducing the most common input spectrum, and to verify there is still headroom over pink noise.
Peak power based on the maximum unclipped peak voltage the amplifier will produce into the nominal load impedance.
Requires Meyer Sound IntelligentDC Power Supply. For information and specifications, visit meyersound.com/product/mps/.
Tolerates voltage drops up to 30% due to long cable runs.