SP-1812AP SP-158AP SP-K615AP SP-K618AP SP-1563AP SP-156AP
SP-155AP SP-115APM SP-112APM SPM-155AP SPM-152AP SPM-122AP

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Self-Powered Sub Woofer. 600W power, single 18” Sub woofer powered system, Bass reflex Rectangular enclosure. Pole mount socket on The top. Full bridge output stage. Hi efficient Power output with low THD, Clip Limiter, XLR balanced input jack and XLR balanced link out- put jack. 60Hz to 250Hz variable filter frequency. Phase shift select, 30Hz low cut switch, 2400W peak with high level bass Bass power extended to low frequency 40Hz.

Model SP-K618AP
System configuration Powered Subwoofer
Components & Loading One SK18600 18", Bass-reflex
Operating Mode Active powered
Enclosure Material Plywood, MDF.
Enclosure Finish Black warnex texture coated
Frequency Response  
±3 dB 40Hz ~ 200Hz
-10 dB 35Hz ~ 350Hz
Axial Sensitivity(dB SPL, 1 watt @ 1m) 100
Recommended high pass frequency 30Hz
Nominal Input Impedance(ohms) 8 ohms
Power Handling(Watts, Continuius) 600
Power Handling(Watts, Peak) 2400
Calculated SPL Limit(Referenced to 1 m)  
Peak 134dB
Long Term 128dB
Optional Accessries STK Caster "SCP80"(80mm wheel), "SCP 100"(100mm wheel)
STK Pole "SPM35130"(35mm)
Optional Painting Color STK Black, STK Brown, STK White
( ±0.13 inch / ±3 mm)
Height 626
Front width 565
Rear width 565
Depth 595
Shipping/CBM 0.2682
Net weight 40.50 kg
Shipping weight 43.88 kg
Max output Power(class AB full bridge)  
EIA @1KHz 1% THD 600W
FTC @THD+N=0.1% 570W
Frequency Response(X-Over Filter off) 20Hz ~ 30kHz
Frequency Response(X-Over Filter on) 10Hz at -1dB to 250Hz at-3dB
20Hz ~ 30 kHz
S/N Ratio (Filter: A-waiting.RMS) ≥ 93dB
Input Sensitivity (Att max) + 4dBu
Crossover Frequency Variable 60Hz to 250Hz 12dB/oct
Low cut Filter 30Hz 12dB/Oct
Phase select 1. 0 degree (switch out)
2. 180 degree (switch on)
Input impedance 10k ohm(unbalance), 20k ohm (balance)
Limeter threshold level + 6dBu @ 100Hz
Limiter control range + 12dBu @ 100Hz
Damping Factor LF ≥350
Controls LCF on/off, Phase shift, Amp gain knob, Frequency variable, AC switch.
Connectors Input/Through XLR Female jack/XLR Male jack
Indicators Power(green), Sig(green), LF clip(red)
Protection 1)short circuit, 2)current limiter, 3) DC detection,
4)Thermal cut off, 5) VDC cut off fuse.
Fan operating Low and high speed control
Power Requirements(1/3 power) 320 Watts
Mains power 110/220/230/240 AC 50/60Hz

*Specifications subject to change without notice

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