900-LFC

Specifications

Operating Frequency Range: 30 Hz – 125 Hz
Frequency Response: 32 Hz – 115 Hz ±4 dB
Phase Response: 40 Hz – 110 Hz ±30°
Linear Peak SPL: 133 dB with crest factor >10 dB (M-noise) , 133 dB (Pink noise), 134.5 dB (B-noise)

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

Type: Differential, electronically balanced
Maximum Common Mode Range: ±15 V DC, clamped to earth for voltage transient protection
Connectors: 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

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

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): 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

Dimensions without Rigging: W: 27.43 in (697 mm) x H: 24.43 in (621 mm) x D: 24.89 in (632 mm)
Dimensions with Rigging: W: 27.47 in (698 mm) x H: 24.43 in (621 mm) x D: 24.89 in (632 mm)
Weight without Rigging: 136 lb (61.7 kg)
Weight with Rigging: 159 lb (72.1 kg)
Enclosure: Premium multi-ply birch with slightly textured black finish
Protective Grille: Powder-coated, hex-stamped steel with acoustical black mesh
Rigging: Optional end frames with captive GuideALinks secured with 0.3125 in x 0.63 in quick release pins that allow 0°, 1.25°, 2.5°, 3.75°, or 5° splay angles; detachable side handles. Rigging supports ground-stacked, flown, and cardioid configurations.
Pole Mount: U.S. version: 1.5 in (38 mm) E.U. version: 1.375 in (35 mm and M20 thread at the bottom)