| Model  | 
                            SP-4730N / SP-4730H  | 
                          
                          
                            | PHYSICAL SPECIFICATION | 
                              | 
                          
                          
                            | 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" | 
                          
                          
                            Demensions 
                              ( ¡¾0.13 inch / ¡¾3 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 | 
                          
                          
                            | TECHNICAL SPECIFICATION  | 
                              | 
                          
                          
                            | Frequency Response | 
                              | 
                          
                          
                            | ¡¾3 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 ¡Æ | 
                          
                          
                            | Vertical | 
                            40 ¡Æ |