Meyer Sound 750-LFC,US,W/P FOLD,3P,W/RIG

Meyer Sound 750-LFC,US,W/P FOLD,3P,W/RIG

Meyer Sound 750-LFC,US,W/P FOLD,3P,W/RIG

Meyer Sound 750-LFC,US,W/P FOLD,3P,W/RIG

750-LFC,US,W/P FOLD,3P,W/RIG,PM38MM

SKU: MSL-09.271.001.09
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Overview

Meyer Sound’s 750-LFC compact low-frequency control element reproduces low frequencies at high, continuous output levels with extremely low distortion. The 750-LFC offers the same sonic linearity as Meyer Sound’s 900-LFC low-frequency control element in a smaller, lighter cabinet, making it ideal for building scalable systems to suit portable applications or fixed installations of any size.

A newly designed class D amplifier affords unprecedented efficiency to the 750-LFC, significantly lowering distortion while reducing power consumption and operating temperature. A single, field-replaceable module contains the on board amplifier and control circuitry.

In addition to pairing with LINA™ systems, the 750-LFC integrates easily with other Meyer Sound loudspeaker systems, including the LEOPARD™ and ULTRA Series loudspeakers.

Meyer Sound’s Galileo® GALAXY Network Platforms, which provide matrix routing, alignment, and processing for array components, can drive LINA and 750-LFC loudspeakers. To guarantee optimum performance, use Meyer Sound’s MAPP™ System Design Tool to design systems with the 750-LFC.

LINA and 750-LFC loudspeakers work with Meyer Sound’s RMS™ remote monitoring system, which provides comprehensive monitoring of system parameters from a Mac® or Windows®-based computer.

The 750-LFC is available with or without Meyer Sound’s QuickFly® rigging. When equipped with the optional MRK-750 rigging kit, the 750-LFC’s captive GuideALinks™ allow it to be flown from the MG-MINA/LINA multipurpose grid in LINA arrays without any transition frame between the 750-LFC and LINA.

Fly 750-LFCs separately as a subwoofer array with variable splay angles of 0°, 1.5°, 3.25°, or 4.75°, or configure the 750-LFC in cardioid arrays to reduce output behind the loudspeakers.

Ground stack arrays without a transition frame between the 750-LFC and LINA by equipping the 750-LFC with the optional MRK-750 rigging kit. Create a wider base for ground-stacks with the optional MG-MINA/LINA grid.

The optional MCF-750 caster frame and protective covers allow for the transportation of both versions of the 750-LFC in stacks.

The 750-LFC integral pole mount supports easy placement of one or two LINAs on top using the available MUB-MINA/LINA U Bracket or the MYA-MINA/LINA yoke. Alternatively, use the pole mount to pair the 750-LFC with ULTRA Series loudspeakers.

Features and Benefits

  • Compact cabinet with small footprint and extraordinary power-to-size ratio
  • High peak power output with extremely low distortion
  • Exceptional linearity, transient reproduction, and low-frequency clarity
  • Self-powered design for simplified setup and increased reliability
  • Stackable and flyable in regular and cardioid arrays with splay options
  • Integral pole-mount receptacle to facilitate pairing with LINA or ULTRA Series loudspeakers

Applications

  • Scalable low-frequency control for touring or corporate applications, or fixed installations
  • Clubs, theaters, houses of worship, corporate AV, and theme parks
  • Low-frequency complement for LINA, LEOPARD and ULTRA systems
Specifications

ACOUSTICAL1

Operating Frequency Range2

35 Hz – 125 Hz

Frequency Response3

37 Hz – 110 Hz ±4 dB

Phase Response

43 Hz – 110 Hz ±30°

Linear Peak SPL4

130.5 dB with crest factor >9 dB (M-noise), 130.5 dB (pink noise), 132 dB (B-noise)

COVERAGE

 

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

TRANSDUCERS

Low Frequency

One 15-inch, dual-coil, long-excursion cone driver; 2 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 with male loop. Optional 5-pin connectors 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 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

2-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 Agency Rated Voltage Range

100–240 V AC, 50–60 Hz

Turn-on and Turn-off points

Turn-on: 90 V AC; Turn-off: none; internal fuse protection above 265 V AC

CURRENT DRAW

Idle

0.39 A rms (115 V AC), 0.38 A rms (230 V AC), 0.42 A rms (100 V AC)

Maximum Long-Term Continuous

5.3 A rms (115 V AC), 2.7 A rms (230 V AC), 6.2 A rms (100 V AC)

Burst (<1 sec)7

9.2 A rms (115 V AC), 4.4 A rms (230 V AC), 10.7 A rms (100 V AC)

Maximum Instantaneous Peak

15.3 A peak (115 V AC), 7.8 A peak (230 V AC), 18 A peak (100 V AC)

Inrush Current

< 20.0 A peak

RMS NETWORK (OPTIONAL)

 

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

PHYSICAL

Dimensions without Rigging

W: 21.80 in (554 mm) x H: 20.30 in (515 mm) x D: 20.88 in (530 mm)

Dimensions with Rigging

W: 21.55 in (547 mm) x H: 20.43 in (519 mm) x D: 20.88 in (530 mm)

Weight without Rigging

89 lbs (40.3 kg)

Weight with Rigging

105 lbs (47.6 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-750 rigging kit with end frames and captive GuideALinks secured with 0.25 in x 0.53 in quick release pins that allow 0°, 1.5°, 3.25°, or 4.75° splay angles; detachable side handles. Rigging allows 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)