Appendix B: 1100-Lfc Specifications - Meyer Sound 1100-LFC Operating Instructions Manual

APPENDIX B: 1100-LFC SPECIFICATIONS

ACOUSTICAL
Operating Frequency 28 Hz – 100 Hz
Range Note: Recommended maximum operating frequency range. Response depends on loading condi-
tions and room acoustics.
Frequency Response 30 Hz – 85 Hz ±4 dB
Note: Measured free field with 1/3 octave frequency resolution at 4 meters.
Phase Response 34 Hz to 82 Hz ±30°
Coverage Varies with number of units and configuration
TRANSDUCERS
Low Frequency Two 18" cone drivers
AUDIO INPUT
Type Differential, electronically balanced
Maximum Common ±15 V DC, clamped to earth for voltage transient protection
Mode Range
Connectors XLR 5-pin female input with XLR 5-pin male loop output
Note: XLR 3-pin connectors optionally available.
Input Impedance 10 k differential between pins 2 and 3
Wiring Pin 1: Chassis/earth through 220 k, 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
DC Blocking Differential DC blocking up to the maximum common mode voltage
CMRR >50 dB, typically 80 dB (50 Hz – 500 Hz)
RF Filter Common mode: 425 kHz
Differential mode: 142 kHz
TIM Filter <80 kHz, integral to signal processing
Nominal Input Sensi- 0 dBV (1.0 V rms, 1.4 V peak) continuous is typically the onset of limiting for noise and music
tivity
Audio source must be capable of producing +20 dBV (10 V rms, 14 V peak) into 600 to produce
Input Level
the maximum peak SPL over the operating bandwidth of the loudspeaker
AMPLIFIER
Type 2-channel complementary MOSFET output stages (Class AB/H bridged)
Cooling Three ultrahigh-speed primary fans, three ultrahigh-speed reserve fans
AC POWER
Connectors powerCON 32
Safety Agency Rated 208–235 V AC; 50/60 Hz
Operating Range
Turn-on/Turn-off 165–264 V AC
Points
33