Specifications
ACOUSTICAL1 | |
Operating Frequency Range2 | 120 Hz – 18 kHz |
Frequency Response3 | 135 Hz – 17 kHz ±4 dB |
Phase Response | 400 Hz – 20 kHz ±45° |
Linear Peak SPL4 | 111.5 dB with crest factor >16.5 dB (M-noise), 109 dB (Pink noise), 111 dB (B‑noise) |
COVERAGE | |
Horizontal Coverage | 80° (3 kHz – 14 kHz ±10°); 120° (below 2 kHz) |
Vertical Coverage | 80° (3 kHz – 14 kHz ±10°); 120° (below 2 kHz) |
TRANSDUCERS | |
One 4‑inch cone driver; 4 Ω nominal impedance | |
AUDIO INPUT | |
Type | Differential, electronically balanced |
Maximum Common Mode Range | ±5 V DC |
Connector | 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 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 50 Ω to produce the maximum peak SPL over the operating bandwidth of the loudspeaker |
AMPLIFIER | |
Type | Class‑D |
Total Output Power5 | 440 W peak |
THD, IM, TIM | < 0.02% |
Cooling | Convection |
DC POWER6 | |
Connector | SwitchCraft EN3 5‑pin male (two pins for 48 V DC power, three pins for balanced audio) |
Safety Agency Rated Voltage7 | 48 V DC |
PHYSICAL | |
Dimensions | W: 4.04 inch (103 mm) x H: 4.04 inch (103 mm) x D: 5.72 inch (145 mm) |
Weight | 4.2 lb (1.9 kg) |
Enclosure | Sealed extruded aluminum with standard white‑painted or a black‑anodized finish |
Protective Grille | Perforated steel |
Mounting | MS 1000a — Stereo Power Amplifier |
Notes
Loudspeaker system predictions for coverage and SPL are available in Meyer Sound’s MAPP System Design Tool.
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‑degree 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.
Amplifier wattage rating based on the maximum unclipped burst sine‑wave rms voltage the amplifier will produce for at least 0.5 seconds into the nominal load impedance: 30 V rms (42 V peak).
Meyer Sound power supply required; for information about and specifications for Meyer Sound IntelligentDC external power supplies, refer to their datasheets.
Tolerates voltage drops (due to long cable runs ) of up to 30 percent.