
Page 4 of 50
THUMP18S SERVICE MANUAL
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Specifications
Thump18S SUBWOOFER SPECIFICATIONS
Acoustic Performance
Frequency Response (–3 dB) 40 Hz – 120 Hz
Frequency Response (–10 dB) 30 Hz – 132 Hz
Max peak SPL
130 dB
Crossover Point 1
40 Hz
Slope
2nd order HP, 6th order LP
Transducer
Woofer Diameter
18.0 in / 457 mm
Voice Coil Diameter 3.0 in / 76 mm
Cone Material
Paper
Magnet Material
Ferrite
Power Amplifier
Rated Power 600 watts rms / 1200 watts peak
Rated THD
< 1%
Cooling
Convection
Design
Class D
Input / Output
Input Type
Female XLR balanced
Input Impedance
20 k balanced / 20 k unbalanced
Full Range Outputs
Male XLR balanced
High Pass Outputs
Male XLR balanced
Line Input Power
US detachable line cord
100 – 120 VAC, 50 – 60 Hz, 150W
EU detachable line cord
220 – 240 VAC, 50 – 60 Hz, 150W
AC Connector
3-pin IEC 250 VAC, 10 A male
Power Supply Type
Switchmode
Operating Temperature
0 - 40 ˚C
[extended ambient temperature] 32 - 104 ˚F
Safety Features
Input Protection Peak and RMS limiting, power supply and amplifier thermal protection
Display LEDs Front and rear power ON, Rear OL limiter
Physical Properties
Height
26.5 in / 672 mm
Width
22.6 in / 573 mm
Depth
22.8 in / 580 mm
Weight
82 lb / 37.2 kg