| 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) | 
                                      ¡Â0.05% | 
                                    
                                    
                                      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 | 
                                      ¡Â0.1% | 
                                    
                                    
                                      Crosstalk 
                                      (RL=8¥Ø, Half power, Att.Max 600¥Ø shunt) | 
                                       ¡Ã63dB, 1 kHz | 
                                    
                                    
                                      Residual Noise 
                                        (20Hz~22kHz LPF,Att.min)  | 
                                      ¡Ã70dB  | 
                                    
                                    
                                      S/N Ratio 
                                        (Filter:A-Weighting, RMS) | 
                                      ¡Ã104dB | 
                                    
                                    
                                      Damping Factor  
                                        (RL=8¥Ø, f=1kHz)  | 
                                      ¡Ã300 | 
                                      ¡Ã300 | 
                                      ¡Ã350 | 
                                        | 
                                    
                                    
                                      | 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 | 
                                      10k¥Ø(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¡É), 
                                        High speed(60¡É) | 
                                    
                                    
                                      Power Consumption  
                                        (1/3 power) | 
                                       1350Watts  | 
                                    
                                    
                                      | DIMENSION | 
                                      480mm X 88mm X 495mm | 
                                    
                                    
                                      | Weight | 
                                      12.4kg / 27.33 Ibs |