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VS-2003

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Manual / Dimensions

The VS-2003 is 3CH Hi power output amplifier.
The power units are designed for install more advenced BI-amplification sound systems.
The built-in two way active crossover that allows independent amplfication of the stereo and mono subwoofer line on a signle unit.Easy to install !

550W+550W(CH1&2)+1200W(CH3) full Range output 20Hz-40kHz
550W+550W for satellites and 1200W for subwoofer, 0.05% THD
Two Way variable frequency 18dB/Octave Active Crossover on Board.
External Bal XLR inputs for full range 1200W output of CH3
Perfect controlled for no clipping output from STK CTLL circuit module.
Ultra Low Impedance capability.
High Frquency Power Supply.
Lowest AC Current Draw.
Flip-Flop Controlled Full Prodection Circuitry.
1.2mm Steel Chassis Construction, 2U Space

SPECIFICATIONS

Model	VS-2003
Triple Mode (Three channel driven)	Continuous Average Output Per Channel
FTC @ THD+N=0.1%, f=20Hz~20kHz	Ch1	Ch2	Ch3
8 ohm/Triple	330W	330W	750W
4 ohm/Triple	550W	550W	1150W
EIA @ THD+1=1%, f=1kHz
8 ohm/Triple	350W	350W	800W
4 ohm/Triple	570W	570W	1200W
Power Bandwidth (Ref. 1kHz, THD+N=0.1%,+0/-1dB)	Ch 1&2;20Hz~30kHz, Ch3:20Hz~250Hz (Through X-over)
THD+N (Ref. 1kHz,f=20Hz~20kHz)	≤0.05%
Frequency Response (Ref. 1kHz, 1watt output, +0/-3dB)	Ch 1&2;20Hz~40kHz, Ch3:20Hz~40kHz (EXT Input)
IMD(SMPTE4:1) (60Hz:7kHz, 4:1 Half power)
4-8 ohm/Stereo	≤0.1%
Crosstalk (RL=8Ω, Half power, Att.Max 600Ω shunt)	≥63dB, 1 kHz
Residual Noise (20Hz~22kHz LPF,Att.min)	≥70dB
S/N Ratio (Filter:A-Weighting, RMS)	≥104dB
Damping Factor (RL=8Ω, f=1kHz)	≥300	≥300	≥350
Input Sensitivity (Att. max)
4 ohm/Stereo	+4.0 dBu and Ch 3 by Gain Control
8 ohm/Bridge	+5.1 dBu and Ch 3 by Gain Control
Crossover Frequency	150Hz/18db Octave
Voltage Gain	34dB	34dB	37dB
Output Circuitry	AB, Ch3: H Class2-Step
Input Impedance	10kΩ(balance)
Controls
Front panel	AC Switch,Ch1,2 Sub(Ch3) gain Control knobs, Freq Control(CH3)
Rear panel	HPF Ch1&2, HPF Sub(Ch3), Int/EXT selet(CH3) Clip limiter(Option)
Connectors
Input	XLR Female jack, XLR Male jack (Input Through)
Output	Speakon jack
Indicators	Power(Green),Level(Green),Protect(Red) Clip(Red), Bar Graph In/Out level
Protection Circuits	1)Short Circuits 2)Current Limit 3)DC detection 4)Thermal 5)Turn On/Off muting 6)Power supply shutdown 7)AC Line fuse
Fan Circuit	Three Fans Variable Low Speed(50℃), High speed(60℃)
Power Consumption (1/3 power)	1350Watts
DIMENSION	480mm X 88mm X 495mm
Weight	12.4kg / 27.33 Ibs

*0dB=0.775V
*Specifications Subject to change without notice.