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 MF/HF 250W + LF 550W full-range active speaker system.The enclosure is to the equation: SP-1563P. Low noise low THD, dual power module for LF and MF/HF, balanced XLR inputs outputs with level control, selectable low and mid x-over frequency, total amp power 800W, system peak 2400W. Excellent low frequency power and no clipping to any high frequency level for ultra clean high sound output. Application : Vocal live sound stage, Front of house, speech for worship.

Model SP-1563AP
System configuration 3-Way full-range/Bi-amp powered system
LF system & Loading One SK15500 15" woofer, vented
MF system & Loading One SK8208F 8" woofer on constant direct-loaded horn.
HF System & Loading One 3" voice coil compression driver on SABS 9 rotated horn
Operating Mode Active powered
Enclosure Material Plywood, MDF.
Enclosure Finish Black warnex texture coated
Frequency Response  
±3 dB 53Hz ~ 18.5kHz
-10 dB 40Hz ~ 20kHz
Axial Sensitivity(dB SPL, 1 watt @ 1m) 101
Recommended high pass frequency 30 Hz
Impedance(ohms) 8 ohms
Power Handling(Watts, Continuius) 800
Power Handling(Watts, Peak) 2000
Calculated SPL Limit(Referenced to 1 m)  
Peak 134dB
Long Term 128dB
Norminal Dispersion(degree@-6dB)  
Horizontal 90 °
Vertical 40 °
Protection Poly switch current protection
Optional Accessries STK Caster "SCP80"(80mm wheel), "SCP 100"(100mm wheel)
STK Eye bolt "SEB 08"
( ±0.13 inch / ±3 mm)
Height 1130
Front width 475
Rear width 330.2
Depth 480
Shipping/CBM 0.3012
Net weight 61.8 kg
Shipping weight 68.0 kg
Max output Power  
EIA @1KHz 1% THD  
LF output 600W
MF/HF output 250W
Max output Power  
FTC @THD+N=0.1%  
LF output 550W
MF/HF output 220W
Frequency Response 20Hz ~ 30kHz
THD +N  
LF ; (Ref. 45Hz ~ 5kHz) ≤0.05%
MF/HF ; (Ref. 1KHz ~ 20kHz) ≤0.05%
IMD(SMPTE 4 : 1, half power)  
LF @ 8 ohm ≤0.05%
MF/HF @ 8ohm ≤0.05%
S/N Ratio (Filter: A-waiting.RMS) LF ≥ 93dB , MF/HF ≥ 90dB
Damping Factor LF ≥350 , MF/HF ≥250
Input Sensitivity (Att max) +4dBu (1.228V)
Cross over frequency(LPF SW 12dB range) 730Hz @-3dB
Cross over frequency(LPF SW 24dB range) 570Hz @-6dB
Input impedance 10k ohm(unbalance), 20k ohm (balance)
Controls LPF select, Amp gain knob, AC switch
Connectors Input/Through XLR Female jack/XLR Male jack
Indicators Power(green), Sig(green), LF clip(red), HF peak(Red)
Protection 1)short circuit, 2)current limiter, 3) DC detection,
4)Thermal cut off, 5) VDC cut off fuse.
Fan operating Variable speed control circuit.
Power Requirements(1/3 power) 450 Watts
*Specifications subject to change without notice.
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Tel. 82-32-525-1788~1789 Fax. 82-32-525-1784   E-mail : stkcom@stkpro.com