Specifications
ACOUSTICAL1 | |
Operating Frequency Range2 | 55 Hz – 18 kHz |
Frequency Response3 | 60 Hz – 18 kHz ±4 dB |
Phase Response | 230 Hz – 16 kHz ±45° |
Linear Peak SPL4 | 129 dB with crest factor >16 dB (M-noise)7 128 dB (Pink noise), 129 dB (B‑noise) |
COVERAGE | |
Horizontal Coverage | 70° |
Vertical Coverage | 50° |
TRANSDUCERS | |
Low Frequency | Two 8‑inch high‑power cone drivers; 4 Ω nominal impedance |
High Frequency | One 3‑inch diaphragm compression driver; 16 Ω nominal impedance |
AUDIO INPUT | |
Type | Differential, electronically balanced |
Maximum Common Mode Range | ±5 V DC, clamped to earth for voltage transient protection |
Connectors | XLR 3‑pin female input with male loop output; optional XLR 5‑pin connector to accommodate both balanced audio and RMS signals. |
Input Impedance | 10 kΩ differential between pins 2 and 3 |
Wiring5 | 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 – Pin 4: RMS (polarity insensitive) Pin 5: RMS (polarity insensitive) Case: Earth ground and chassis |
Nominal Input Sensitivity | 0 dBV (1.0 V rms) continuous is typically the onset of limiting for noise and music |
Input Level | Audio source must be capable of producing of +20 dBV (10 V rms) into 600 Ω to produce the maximum peak SPL over the operating bandwidth of the loudspeaker. |
AMPLIFIER | |
Type | Three‑channel, Class‑D |
Total Output Power6 | 1770 W peak |
THD, IM, TIM | < 0.02% |
Cooling | Convection |
AC POWER | |
Connector | PowerCON 20 input with loop output |
Automatic Voltage Selection | 90–265 V AC |
Safety Agency Rated Voltage 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 | 0.26 A rms (115 V AC); 0.25 A rms (230 V AC); 0.28 A rms (100 V AC) |
Maximum Long‑Term Continuous Current (>10 sec) | 1.4 A rms (115 V AC); 0.8 A rms (230 V AC); 1.7 A rms (100 V AC) |
Burst Current (<1 sec)7 | 2.2 A rms (115 V AC), 1.1 A rms (230 V AC), 2.6 A rms (100 V AC) |
Maximum Instantaneous Peak Current | 6.0 A peak (115 V AC), 2.9 A peak (230 V AC), 6.9 A peak (100 V AC) |
Inrush Current | < 20 A peak |
RMS NETWORK (OPTIONAL) | |
Two‑conductor twisted‑pair network that reports all operating parameters of amplifiers to system operator’s host computer. | |
PHYSICAL | |
Dimensions | W: 18.68 in (474 mm) x H: 12.68 in (322 mm) x D: 18.60 in (472 mm) |
Weight | 47 lb (21.3 kg) |
Enclosure | Premium multi‑ply birch with slightly textured black finish; 35° front angle |
Protective Grille | Powder‑coated, hex‑stamped steel with black mesh |
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.
Maximum SPL is the peak measured in free‑field at 4 m referred to 1 m using noise.
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.
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.
Pins 4 and 5 (RMS) only included with XLR 5‑pin connector that accommodates both balanced audio and RMS signals.
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.