Meyer Sound M1D-Sub Amplified Line Array Subwoofer

Meyer Sound M1D-Sub Amplified Line Array Subwoofer

The M1D-Sub ultra-compact subwoofer complements the M1D ultra-compact curvilinear array loudspeaker by extending bandwidth with its operating frequency range of 32 Hz to 180 Hz and substantially increasing overall system headroom. Because it produces a prodigious peak SPL of 130 dB at 1 meter from a compact cabinet, the M1D-Sub allows system designers to minimize array size while maximizing system response. A variety of QuickFly rigging options allows the M1D-Sub to be flown above, below or within an array, or placed at the base of a ground-stacked array. Although it is intended primarily as a companion subwoofer to the M1D, it is perfectly suited to general use where powerful low frequency augmentation is desired.

Features:

• Extremely compact and lightweight
• High power-to-size ratio for maximum installation flexibility
• Exceptional fidelity and peak capability assure clean, high-impact lows
• QuickFly rigging system simplifies use in flown or ground-stacked arrays
• Seamless integration with M1D loudspeakers

Specifications:

• Acoustical
  • Operating Frequency Range: 32 Hz - 180 Hz
  • Frequency Response: 35 Hz - 160 Hz ±4 dB
  • Phase Response: 50 Hz - 120 Hz ±45°
  • Maximum Peak SPL: 130 dB
  • Dynamic Ran: >110 dB
• Coverage
  • Horizontal Coverage: 360°
  • Vertical Coverage: Varies, depending on array length and configuration
• Transducers
  • Low Frequency
    • Two 10" cone drivers with neodymium magnets
    • Nominal impedance: 4 Ω
    • Voice coil size: 2"
    • Power-handling capability: 400 W (AES)
• Audio Input
  • Type: Differential, electronically balanced
  • Maximum Common Mode Range: ±15 V DC, clamped to earth for voltage transient protection
  • Connectors: Female XLR input with male XLR loop output
  • 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 -
    • Case: Earth ground and chassis
  • DC Blocking: Differential DC blocking up to 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: Integral to signal processing (<80 kHz)
  • Nominal Input Sensitivity: 0 dB V (1 V rms, 1.4 V pk) continuous is typically the onset of limiting for noise and music
  • Input Level: Audio source must be capable of producing a minimum of +20 dB V (10 V rms, 14 V pk) into 600 Ω in order to produce maximum peak SPL over the operating bandwidth of the loudspeaker
• Amplifiers
  • Type: Two-channel complementary MOSFET output stages (class AB/bridged)
  • Output Power: 450 W total
  • THD, IM, TIM: <.02 %
  • Load Capacity: 4 Ω each channel
  • Cooling: Forced air cooling over amplifier heatsink
• AC Power
  • Connector: PowerCon with looping output
  • Automatic Voltage Selection: Automatic
  • Safety Agency Rated Operating Range: 100 - 240 V AC; 50/60 Hz
  • Turn-on and Turn-off Points: Continuous 90 - 264 V AC; 50/60 Hz
  • Current Draw:
    • Idle Current: 0.41 A rms (115 V AC); 0.33 A rms (230 V AC); 0.42 A rms (100 V AC)
    • Max Long-Term Continuous Current (>10 sec): 3.2 A rms (115 V AC); 1.6 A rms (230 V AC); 3.7 A rms (100 V AC)
    • Burst Current (<1 sec): 5.0 A rms (115 V AC); 2.5 A rms (230 V AC); 5.8 A rms (100 V AC)
    • Ultimate Short-Term Peak Current Draw: 17 A pk (115 V AC); 8.5 A pk (230 V AC); 20 A pk (100 V AC)
    • Inrush Current: 15 A pk (115 V AC); 13 A pk (230 V AC); 15 A pk (100 V AC)
• RMS Network
  • Equipped for two conductor twisted-pair network, reporting all operating parameters of amplifiers to system operator’s host computer.
• Physical
  • Dimensions:
  • 22.62" W x 13.00" H x 17.50" D
  • (575 mm x 330 mm x 445 mm)
• Weight: 70 lbs (31.75 kg); shipping: 75 lbs (34.02 kg)
• Enclosure: Multi-ply hardwood
• Finish: Black textured
• Protective Grille: Powder-coated hex stamped steel
• Rigging: QuickFly® MRF-1D-Sub rigging frame