SP-218S SP-118S SP-118SL SP-215S SP-115S SP-4733N
SP-253N SP-212 SP-1563P SP-4730N SP-4730H SP-153H
SP-152H SP-152L SP-122H SP-122 SP-112 SP-115M
SP-112M SP-620CW SP-810CW SPM-155H SPM-152H SPM-122
SP-810CM SP-605CM SP-605CMT      
  Front View / Rear View
  Manual / Dimensions

The 115S is a very compact, one 15” subwoofer in a bass refelx rectangluar enclosure.
One SK15500 transducers supplement and extend low frequency output of full-range systems in a variety of partable and fixed applications.

  • Dedicated subwoofer system
  • The enclosure construction : "STK Standard"
  • Ultra tough, the scratch proof warnex texture coated
  • Two side handles one on each side for easy repositioning.
  • Impact-resistant perforated metal grill with weather proof powder coated.
  • 35mm pole mount receptable on the top.
  • “SCP” STK caster, “SPM” STK pole option.
Model SP-115S
System configuration Dedicated Subwoofer
Components & Loading One SK15500 One 15" Bass-reflex
Operating Mode Passive
Enclosure material Plywood with MDF
Enclosure Finish Black warnex texture coated
Connectors Two neutrick speakon
Grille Powder coated perforated steel
Optional accessories 1. STK caster "SCP80" or "SCP100"
2. STK pole "SPM35130"
( ±0.13 inch / ±3 mm)
Height: 540
Front width: 476
Depth: 595
Shipping/CBM 0.26
Net weight  
Shipping weight 34 kg
Frequency Response  
±3 dB 53Hz ~ 350Hz
-10 dB 45Hz ~ 350Hz
Recommended High-Pass Frequency 50Hz
Axial Sensitivity(dB SPL, 1 watt @ 1m) 99
Nominal Input Impedance(ohms) 4
Power Handling(Watts, Continuius) 500
Power Handling(Watts,Program/ Peak) 1000/2000
Max Calculated SPL (Referenced to 1 m)  
Peak 132
Long Term 126
Suggested System A STK SP 158AP
Suggested System B STK V-9,STK V-6
*Specifications subject to change without notice.
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