Meyer Sound 1100-LFC

Meyer Sound 1100-LFC Specifications

ACOUSTICAL

• Operating Frequency Range: 28 Hz – 100 Hz

• Frequency Response: 30 Hz – 85 Hz ±4 dB

• Phase Response: 34 Hz – 82 Hz ±30°

• Linear Peak SPL: 140 dB with crest factor >9.5 dB (M-noise), 140 dB (Pink noise), 141 dB (B‐noise)

COVERAGE

• Coverage: 360° (single unit); varies with number of units and configuration

TRANSDUCERS

• Low Frequency: Two 18‐inch long‐excursion cone drivers; 8Ω nominal impedance

AUDIO INPUT

• 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 220 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

AMPLIFIERS

• Type: 2‐channel complementary MOSFET output stages (Class AB/H bridged)

• Total Output Power: 8100 W peak

• THD, IM, TIM: < 0.02%

• Cooling: Three ultra high‐speed primary fans; three ultra high‐speed reserve fans

AC POWER

• Connector: PowerCon32

• Automatic Voltage Selection: 208–235 V AC, 50/60 Hz

• Safety Rated Volted Range: 208–235 V AC, 50/60 Hz

• Turn-on and Turn-off Points: Turn‐on: 165 V AC turn‐on; 264 V AC turn‐off

CURRENT DRAW:

• Idle Current: 0.6 A rms (230 V AC)

• Max Long‐Term Continuous Current (>10 sec): 10.5 A rms (230 V AC)

• Burst Current (<1 sec): 18 A rms (230 V AC)

• Maximum Instantaneous Peak Current: 53 A peak (230 V AC)

• Inrush Current: < 30 A peak

RMS NETWORK

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

PHYSICAL

• Dimensions (without Rigging): W: 52.60 in (1336 mm) x H: 20.48 in (520 mm) x D: 33.00 in (838 mm)

• Dimensions (with Rigging): W: 54.65 in (1388 mm) x H: 20.48 in (520 mm ) x D: 33.00 in (838 mm)

• Weight (without Rigging): 249 lb (112.9 kg)

• Weight (with Rigging): 285 lb (129.3 kg)

• Enclosure: Premium multi‐ply birch with slightly textured black finish

• Protective Grille: Powder‐coated, hex‐stamped steel with acoustical black mesh

• Rigging: Optional MRK‐1100 rigging kit with captive GuideALinks secured with 0.5 in x 1.25 in quick release pins for ground‐stacked, flown, and cardioid configurations

MANUFACTURER NOTES

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. Measured in half‐space with pink noise at 4 m, 1/3‐octave frequency resolution.

4. Linear Peak SPL is measured in half‐space at 4 m referred to 1 m. Loudspeaker SPL compression measured with M‐noise at the onset of limiting, 2‐hour duration, and 50‐degree 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. The presence of a greater‐than (>) symbol with regard to crest factor indicates it may be higher depending on EQ and boundary loading. 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 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.

IMPORTANT: CMG strive to provide the most accurate and complete equipment description and item specifications, including weight, rigging, power requirements and recommended use. All product information has been sourced from the original equipment manufacturer (or Australian distributor) and is based on the manufacturers standard specifications. Actual specifications for this equipment may differ. It is highly recommended that all equipment details are confirmed with our team PRIOR TO USE as the supplier, as the latter (CMG Audio Visual Pty Ltd) cannot be held accountable for any inaccuracies.