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Meyer Sound Documentation

Specifications
In this section:
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ACOUSTICAL1

Operating Frequency Range2

65 Hz – 18 kHz

Phase Response

100 Hz – 18 kHz ±45°

Maximum SPL3

138 dB

Linear Peak SPL4

132 dB with 19 dB crest factor (M-noise), 128 dB (Pink noise), 130 dB (B-noise)

COVERAGE

Horizontal Coverage

100°

Vertical Coverage

Varies, depending on array length and configuration

TRANSDUCERS

Low Frequency

Two 6.5-inch long-excursion cone drivers; 4 Ω nominal impedance

High Frequency

One 3-inch diaphragm compression driver coupled to a constant-directivity horn through a patented REM® manifold; 8 Ω nominal impedance

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. 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

Pin 5: RMS

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

3-channel, Class-D

Total Output Power6

1950 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, 50–60 Hz

Safety 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

0.25 A rms (115 V AC); 0.25 A rms (230 V AC); 0.29 A rms (100 V AC)

Maximum Long-Term Continuous Current (>10 sec)

2.3 A rms (115 V AC); 1.16 A rms (230 V AC); 2.8 A rms (100 V AC)

Burst Current (<1 sec)7

3.9 A rms (115 V AC), 1.7 A rms (230 V AC), 4.5 A rms (100 V AC)

Maximum Instantaneous Peak Current

8.8 A peak (115 V AC), 4.0 A peak (230 V AC), 9.2 A peak (100 V AC)

Inrush Current

< 20.0 A peak

RMS NETWORK (OPTIONAL)

Equipped with two-conductor twisted-pair network, reporting all operating parameters of amplifiers to system operator’s host computer.

PHYSICAL

Dimensions

W: 20.27 in (515 mm) x H: 8.38 in (213 mm) x D: 15.32 in (389 mm)

Weight

43 lb (19.5 kg)

Enclosure

Premium multi-ply birch, slightly textured black finish

Protective Grille

Powder-coated, hex-stamped steel with acoustical black mesh

Rigging

End frames with captive GuideALinks secured with 0.25 in x 0.53 in quick release pins that allow

0° to 11° splay angles. M6 attachment points for optional MYA-MINA/LINA mounting yoke and MUB- MINA/LINA U-bracket

Notes
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  1. Loudspeaker system predictions for coverage and SPL are available in Meyer Sound’s MAPP System Design Tool.

  2. Recommended maximum operating frequency range. Response depends on loading conditions and room acoustics.

  3. Maximum SPL is the peak measured in free-field at 4 m referred to 1 m using noise.

  4. 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, (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.

    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.

  5. Pins 4 and 5 (RMS) only included with XLR 5-pin connector that accommodates both balanced audio and RMS signals.

  6. Peak power based on the maximum unclipped peak voltage the amplifier will produce into the nominal load impedance.

  7. 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.