Specifications
ACOUSTICAL | |
Operating Frequency Range1 | 30–140 Hz |
Frequency Response2 | 32–123 Hz ±4 dB |
Phase Response | 40–123 Hz ±30° |
Linear Peak SPL3 | 126 dB with crest factor >11.5 dB (M-noise), 126 dB (Pink noise), 127 dB (B-noise) |
Coverage | 360° (single unit), varies with number of units and configuration |
TRANSDUCERS | |
Low Frequency | Two 10-inch cone drivers, nominal impedance 4 Ω |
AUDIO INPUT | |
Type | Differential, electronically balanced |
Maximum Common Mode Range | ±15 V DC, clamped to earth for voltage transient protection |
Connectors | XLR 3-pin female input with male loop output |
Input Impedance | 10 kΩ differential between pins 2 and 3 |
Wiring | Pin 1: Chassis/earth through 1 kΩ, 1000 pF, 15 V clamp network to provide virtual ground lift at audio frequencies Pin 2: Signal + Pin 3: Signal - Case: Earth ground and chassis |
Nominal Input Sensitivity | 0 dBV (1 V rms) continuous is typically the onset of limiting for noise and music |
Input Level | Audio source must be capable of producing a minimum of +20 dBV (10 V rms) into 600 Ω to produce maximum peak SPL over the operating bandwidth of the speaker |
AMPLIFIERS | |
Type | 2-channel (class D) with crossover |
Total Output Power4 | 1800 W peak |
THD, IM, TIM | < 0.02% |
Load | 4 Ω per channel |
Cooling | Convection |
AC POWER | |
Connector | powerCON 20 input with loop output |
Automatic Voltage Selection | Automatic |
Safety Agency Rated Operating Range | 100–240 V AC, 50–60 Hz |
Turn-on and Turn-off Points | 90 V AC turn-on, no turn-off; internal fuse-protection above 265 V AC |
CURRENT DRAW | |
Idle Current | 0.27 A rms (115 V AC); 0.25 A rms (230 V AC); 0.29 A rms (100 V AC) |
Max Long-Term Continuous Current (>10 sec) | 1.4 A rms (115 V AC); 0.7 A rms (230 V AC); 1.6 A rms (100 V AC) |
Burst Current (<1 sec)5 | 4.5 A rms (115 A AC); 2.1 A rms (230 V AC); 4.8 A rms (100 V AC) |
Maximum Instantaneous Peak Current | 9.7 A peak (115 V AC); 4.6 A peak (230 V AC); 10.8 A peak (100 V AC) |
Inrush Current | <20 A peak |
PHYSICAL | |
Dimensions | W: 12.00 in (304.8 mm) x H: 41.33 in (1049.8 mm) x D: 12.00 in (304.8 mm) |
Weight | 56 lb (25.40 kg) |
Enclosure | Premium birch plywood, slightly textured black finish; powder-coated, stamped-steel, protective grille |
Rigging | Top and bottom mounting points with M8 threads |
RMS NETWORK (OPTIONAL) | |
Type | Two-conductor, twisted-pair network that reports all amplifier operating parameters to host computers |
Notes
Recommended maximum operating frequency range. Response depends upon loading conditions and room acoustics.
Measured in half-space with pink noise at 4 meters, 1/3-octave frequency resolution.
Linear Peak SPL is measured in half-space 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, (10Hz–22.5kHz) 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.
AC power cabling must be of sufficient gauge so that under burst current rms conditions, cable transmission losses do not cause the loudspeaker’s voltage to drop below the specified operating range.