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Specifications
MD-SP215 MD-SP218
Frequency Response, ±3dB 27-100 Hz 26-100 Hz
Frequency Range, -10dB 25-110 Hz 24-110 Hz
Maximum Peak SPL 131.5dB 132.5dB
Transducer Description Two 15-in. (381mm) long-throw woofers Two 18-in. (457mm) long-throw woofers
4-in. (102mm) voice coil with 4-in. (102mm) voice coil with
aluminum demodulating ring aluminum demodulating ring
Amp Power 1400 Watts 1400 Watts
Input Sensitivity 1.2V
rms
(+4dB) 1.2V
rms
(+4dB)
Input Headroom/Clipping 7.5V
rms
(+19.5dB) 7.5V
rms
(+19.5dB)
Input Connector/Impedance XLR female, 20k ohm balanced XLR female, 20k ohm balanced
Output Connector XLR male, wired in parallel XLR male, wired in parallel
with Input connector with Input connector
Controls, Indicators, and Gain control, 100 Hz Hi-cut filter switch, Clip/Limit (red LED), Signal
Adjustments presence (green LED), AC Power (blue LED)
Protection, Agency certs. Thermal limiting, On/Off muting, AC in-rush current limiting (<12A peak)
FCC class B (conducted and radiated emissions), UL/CE listed
AC Power Requirements Configured at the factory for 120V or 240V nominal, 50/60 Hertz
AC Power Connector Factory supplied cordset: Neutrik Powercon on 10’ (3m) #18AWG 120V North American cordset
Dimensions 23.3” (591mm) D 24.0” (610mm) D
26.0” (660mm) H 28.0” (711mm) H
40.0” (1016mm) W 48.0” (1219mm) W
Allow for 4.0” (100mm) of free space behind the enclosure to assure proper amplifier cooling
Weight 190 lb/86.2 kg 210 lb/95.3 kg
Finish and Grill Wear resistant textured paint finish with powder-coated perforated steel grill, black
colored enclosures are supplied with handles and white colored enclosures are not
supplied with handles. 16 load-rated pick points that accept 3/8-inch, 16 threads per inch forged
shoulder eye bolts.
Notes:
1- Maximum Peak SPL: Calculated by adding the loudspeaker’s sensitivity (1W at 1m) to the peak power (dBw) of the amplifier provided.
2- Amplifier Power: The maximum sustained power at less than 1% clipping, averaged over the intended frequency range,
3- Input Sensitivity: The sine-wave input voltage required to reach amplifier clipping, measured within the frequency range used to determine Maximum Peak SPL, with the gain on “normal” and no gain reduction
due to limiting.
4- Input Headroom/Clipping: Maximum input voltage.
5- Input Connector/Impedance: RF shunt capacitance should not reduce impedance by more than 30% at 20k Hz.