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      
   SP-4730N / SP-4730H
  Front View / Rear View
  Manual / Dimensions

The SP4730N and 4730H is full-range 3-way system trapezoidal enclosure with one 8” “SK8208” mid range woofers vented for articulate sound.
The SP4730N & H offers very high power outputs with 15” "SK15500" transducer vented for more tight, punchy bass. This systems perfectly provide for voice speech and live music. The 4730N is 4 ohm input and 4730H is 8 ohm input.

  • 3-Way passive full-range system.
  • The barrier strip internal mode selector is bi-AMp mode changeable.
  • The one 2” SK-60D exit compression drivers on a SABS 2 horn.
  • An internal passive cross over network frequency is 500Hz, 2 kHz, 12dB/Octave.
  • The enclosure construction: By STK “STANDARD”
  • Ultra tough, the scratch proof warnex texture coated.
  • 35mm pole mount receptacle on the top and bottom.
  • STK caster option.
Model SP-4730N / SP-4730H
System configuration 3-Way Full Range
LF system & Loading One SK 15500 15" woofer, Vented
MF system & Loading One SK8208 8" woofer, Vented
HF system & Loading One 2 "Voice coil compression driver
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" or "SCP100"
2. STK Pole "SPM35130"
( ±0.13 inch / ±3 mm)
Height: 832
Front width: 600
Rear width: 456
Depth: 480
Trapezoid angle(degrees) 18
Shipping/CBM 0.359
Net weight 39.34 kg
Shipping weight 42.6 kg
Frequency Response  
±3 dB 53Hz ~ 18kHz
-10 dB 44Hz ~ 20kHz
Recommended High-Pass Frequency 50Hz
Axial Sensitivity(dB SPL, 1 watt @ 1m) Full Range Passive 102
Nominal Input Impedance(ohms) Full Range Passive: 4 / 8
LF: 4 / 8
MF: 8
HF: 8
Power Handling, Watts  
(Continuous/Program/Peak) Full Range Passive: 400/800/1600
(Continuous) LF: 400
(Continuous) MF: 220
(Continuous) HF: 60
Max Calculated SPL (Referenced to 1 m)  
Full Range Passive Peak 134
Full Range Long Term 128
Norminal disperson(degrees @ -6dB)  
Horizontal 90 °
Vertical 40 °
*Specifications subject to change without notice.
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