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 SP4733N full-range two-way or BI-AMP system trapezoidal enclosure with dual 15” SK15600 woofers high power and extened low frequency.
The SP4733N is engineered to complement The STK Pro, Active series Subwoofer for most demanding live sound and playback environments.

  • Two-Way passive full-range system.
  • The one SK120MDN 3”compression drivers on a SABS1 horn.
  • The barrier strip internal mode selector is Bi-Amp mode changeable.
  • Ultra tough, the scratch proof warnex texture coated.
  • An internal passive crossover network frequency is 1.5Khz 12dB/Octave.
  • The enclosure construction: By STK “STANDARD”
  • Ultra tough, the scratch proof warnex texture coated.
  • Impact-resistant perforated metal grill(1.5mm)with weather proof powder coated.
  • “SCP” STK caster option.
Model SP-4733N
System configuration 2-Way Full Range
LF system & Loading Dual SK 15600 15" woofer, Vented
HF system & Loading One 3"Voice coil compression on SABS 1 horn.
Operating Mode Passive or BI-Amplified
Controls Powering Mode select strip
Enclosure Material Plywood,MDF
Enclosure Finish Black warnex texture coated
Connectors Two neutrick speakon
Grille Powder coated perforated steel
Optional accessories 1. STK caster "SCP80"(80mm wheel)
2. STK caster "SCP100"(100mm wheel)
( ±0.13 inch / ±3 mm)
Height: 1220
Front width: 550
Rear width: 397
Depth: 510
Trapezoid angle(degrees) 18
Shipping/CBM 0.496
Net weight  
Shipping weight 78.65 kg
Frequency Response  
±3 dB 50Hz ~ 18kHz
-10 dB 35Hz ~ 20kHz
Recommended High-Pass Frequency 30Hz
Axial Sensitivity(dB SPL, 1 watt @ 1m) Full Range Passive 103
Nominal Input Impedance(ohms) Full Range Passive: 4
LF: 4
HF: 16
Power Handling, Watts  
(Continuous/Program/Peak) Full Range Passive: 1200/2400/4800
(Continuous) LF: 1200
(Continuous) HF: 200
Max Calculated SPL (Referenced to 1 m)  
Full Range Passive Peak 139
Full Range Long Term 133
Norminal disperson(degrees @ -6dB)  
Horizontal 90
Vertical 50
*Specifications subject to change without notice.
Copyright © 2007. stkpro.com All right reserved.
3F, 15, Majang-ro 543beon-gil, Gyeyang-gu, Incheon, Republic of Korea (Zip 21104)
Tel. 82-32-525-1788~1789 Fax. 82-32-525-1784   E-mail : stkcom@stkpro.com