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VS-1203

Front View / Rear View

Manual / Dimensions

The VS-1203 is a incorporated two way active crossover that allows independent amplification of the stereo and mono subwoofer line on a signle unit. Easy to install !.
The Bi-Amplifiers requires no technical adjustment for X-Over frequency & levels.

300W+300W(CH1&2)+600W(CH3) full Range output 20Hz-40kHz
300W+300W for satellites and 600W for subwoofer, 0.05% THD 20Hz~40kHz
Two Way variable frequency 18dB/Octave Active Crossover on Board.
External Bal XLR inputs for full range 600W output of CH3
Perfect controlled for no clipping output from STK CTLL circuit module.
Ultra Low Impedance capability.
High Frquency Power Supply.
Logical LED meters are present for power In/Output level.
Lowest AC Current Draw.
Flip-Flop Controlled Full Prodection Circuitry.
1.2mm Steel Chassis Construction, 2U Space

SPECIFICATIONS

Model	VS-1203
Triple Mode (Three channel driven)	Continuous Average Output Per Channel
FTC @ THD+N=0.1%, f=20Hz~20kHz	Ch1	Ch2	Ch3
8 ohm/Triple	200W	200W	370W
4 ohm/Triple	300W	300W	600W
EIA @ THD+1=1%, f=1kHz
8 ohm/Triple	210W	210W	390W
4 ohm/Triple	330W	330W	650W
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	29dB	29dB	34dB
Output Circuitry	AB
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	Two Fans Variable Low Speed(50℃), High speed(60℃)
Power Consumption (1/3 power)	670Watts
DIMENSION	480mm X 88mm X 460mm
Weight	11.12kg / 24.15 Ibs

*0dB=0.775V
*Specifications Subject to change without notice.
*Above specifications is 230V AC mains voltage condition.