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SX218
Specifications
TYPE
Compact, direct radiating subwoofer
FREQUENCY RESPONSE (1)
47Hz-150Hz ± 3dB, -10dB @ 41Hz
DRIVER
1 x 18" (460mm)/4" (100mm) voice coil, long excursion, ferrite magnet, waterproof cone
RATED POWER (2)
1000W AES, 4000W peak
RECOMMENDED AMPLIFIER
iK42 / iK81
SENSITIVITY (10)
102dB
MAXIMUM SPL (9)
138dB continuous
NOMINAL IMPEDANCE
8 ohms
DISPERSION (-6dB)
Omnidirectional
CROSSOVER
80-120Hz active
ENCLOSURE
Multi-laminate birch/poplar plywood
FINISH
Textured black paint
PROTECTIVE GRILLE
Perforated steel
CONNECTORS
2 x NL4
PIN CONNECTIONS (INPUT)
LF1: +1, -1 LF2: +2, -2
PIN CONNECTIONS (LINK)
LF1: +1, -1 LF2: +2, -2
FITTINGS
Two skids on base, with mating channels on top
Four rear-mounted 100mm (4in) castors
24 x M10 mounting points
4 x bar handles, 2 on each side
4 x fittings for optional transit cover
DIMENSIONS (INCL FEET)
(W) 600mm x (H) 509mm x (D) 632mm (760mm including castors)
(W) 23.62in x (H) 20.04in x (D) 24.86in (29.9in including castors)
WEIGHT
47kg (104lbs)
Technical Drawing
Copyright © 2021 Martin Audio Ltd.
Notes
(1) Measured on-axis in half (2pi) space at 2 metres, then
(2) AES Standard ANSI S4.26-1984.
(3) Measured in half (2pi) space at 2 metres with 1 watt
(4) Measured in half (2pi) space at 2 metres using band
(5) Measured on-axis in open (4pi) space at 2 metres, then
(6) Measured in open (4pi) space at 2 metres with 1 watt
(7) Measured in open (4pi) space at 2 metres using band
(8) Measured in open (4pi) space at 2 metres with 2.83V
(9) Calculated at 1 metre.
(10) Measured in half (2pi) space at 2 metres with 2.83V
Castors are shown for illustration only and are not included as standard.
63
SX SERIES USER GUIDE
referred to 1 metre.
input, using band limited pink noise, then referred to 1
metre.
limited pink noise, then referred to 1 metre.
referred to 1 metre.
input, using band limited pink noise, then referred to 1
metre.
limited pink noise, then referred to 1 metre.
input, using band limited pink noise, then referred to 1
metre.
input, using band limited pink noise, then referred to 1
metre.
SX SERIES USER GUIDE V2.5
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