900-LFC Loa sub active 18" Meyer Sound

ACOUSTICAL1

Operating Frequency Range2

30 Hz – 125 Hz

Frequency Response3

32 Hz – 115 Hz ±4 dB

Phase Response

40 Hz – 110 Hz ±30°

Linear Peak SPL4

133 dB with crest factor >10 dB (M-noise), 133 dB (Pink noise), 134.5 dB (B-noise)

COVERAGE

360° (single unit); varies with number of units and configurations

TRANSDUCERS

Low Frequency

One 18-inch, dual-coil, long-excursion cone driver; 2Ω nominal impedance

AUDIO INPUT

Type

Differential, electronically balanced

Maximum Common Mode Range

±15 V DC, clamped to earth for voltage transient protection

Connectors5

XLR 5-pin female input with male loop output; XLR 3-pin female connectors available to accommodate only balanced audio (no RMS signals)

Input Impedance

10 kΩ differential between pins 2 and 3

Wiring

Pin 1: Chassis/earth through 1 kΩ, 1000 pF, 15 V clamped 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

6.0 dBV (2.0 V rms) continuous is typically the onset of limiting for noise and music

Input Level

Audio source must be capable of producing +20 dBV (10 V rms) into 600 Ω to produce the maximum peak SPL over the operating bandwidth of the loudspeaker

AMPLIFIER

Type

Two-channel, open-loop, class D

Total Output Power6

3100 W peak

THD, IM, TIM

< 0.02%

Cooling

Convection

AC POWER

Connectors

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

0.60 A rms (115 V AC), 0.49 A rms (230 V AC), 0.63 A rms (100 V AC)

Maximum Long-Term Continuous Current (>10 sec)

4.9 A rms (115 V AC); 2.5 A rms (230 V AC); 5.2 A rms (100 V AC)

Burst Current (<1 sec)7

8.8 A rms (115 V AC), 4.7 A rms (230 V AC), 11.0 A rms (100 V AC)

Maximum Instantaneous Peak Current

18.2 A peak (115 V AC), 9.2 A peak (230 V AC), 20.6 A peak (100 V AC)

Inrush Current

< 20 A peak

RMS NETWORK

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