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The VP-4DRV is similar purpose of the VP8-DRV,compact size very economic with full-featured best buy.
4 CH input 170W dual purpose designed for 70V/100V output and 8 ohm full range output with high-fidelity specification. The 90 W high voltage outputs effectively match the impendance of a wall mount, out door indoor loud speaker and paging horn speakers,Another 8 ohm 75 W quater inch phone jack outputs connect to STK 2 way SP112 full range speaker or other equivalent products.

  • 4 CH 12 input configurations
  • Barrier strip 70V/100V output terminals.
  • The Mic preamps extra 10dBu input handling capacity.
  • Ultra realistic sound with 20kHz response dual variable DRV digital effects
  • Convection cooling with large size heat sinks
  • FET control quiet power on/off muting circuit.
  • Lowest in-rush trodial transformers.
  • Available rack mount,steel case 3-2/3 U space.
Model VP4-DRV
A&B Both output Drive 170W
Rated Power(20-20kHz)  
Output A, 8 ohm load 90W
Output B,High Z Load 70V/100V(80W)
(THD & SMPTE IND; 20Hz to 10kHz)
Mic input to main mixes output 0.01%
Mic input to power amp output 0.05%
(all 1/4” TRS are Bal./Unbal.except*)
Mono mic/line 4(XLR and 1/4" Phone)
Stereo line -
Tape In TS 1/4"
AUX Returns TS 1/4”
(all 1/4” TRS are Bal./Unbal.except*)
Speaker Outputs TS 1/4”(8 ohm)/ 4 Block Barier Strip(70V/100V)
Main Mix(line)Level TS 1/4”
Main Mono(Subwoofer) N/A
Aux Sends TRS 1/4”
Tape L/R Stereo  
Controls Channel  
AUX Send Control 1 EFX
Constant Pan Control N/A
10dB Input PAD  
Controls Master  
Digi EFX Dual Variable
1 REV Control(0.5-10sec)
1 DELAY Control(50-1000 msec)
1 FEEDBACK Control(0-90%)
1 Delay and Reverb MIXING Control(0-100%)
Digi EFX Control On/Off, LED Level Set
Digi EFX Buss Control 1 + 1 Monitor
Aux In Control  
7-Band Graphic Equalier Yes(3 band type)
AUX Send Master  
Power AMP Assign  
Foot Pedal EFX Jack Yes
Master Gain@Unity Ch, gains down 87 dB
Master Gain@Unity,CH.gains@Unity 85 dB
Signal to Noise Ratio ≥90 dB
Adjacent inputs or input to output 90 dB
Frequency Response  
20Hz to 40kHz(Mic Pre Section) +0, -1.5dB
20Hz to 30kHz(Power Amp Section) +0, -1dB
Maximum Levels  
Mic Preamp Input +4 dBu
All Other inputs +18 dBu
Mic Preamp Input 4k Bal.
All Other input >10k
Line Input 4k
Equalization 2 Band
Low EQ 100 Hz +/-15dB
Mid EQ N/A
Hi EQ 10 kHz +/-15dB
Micriphone Preamp E.I.N. -125dBm
Power Requirements 200Watts
Dimension(WxHxD) 415 x 197 x 235
Shipping/CBM 0.0504
Net Weight 10kg
Shipping Weight 11kg
*Specifications subject to change without notice.
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