| Model | VP-2421 |
| Power supply | 28 V DC (operating range: 20 - 40 V DC) Screw terminal M4, distance between barriers: 12 mm |
| Current consumption | 0,03 A (standby mode), 0,60 A (no audio input), 7,6 A (1/8 A (nominal output), EN60065), 29 A (nominal output) |
| Rated output power | 420 W (at minimum resistive and maximum capacitive load) |
| Output power (on AC power supply): 195,5 V) | 320 W (at minimum resistive and maximum capacitive load) |
| Output Voltage | 100 V (70 V, 50 V: selectable by internal wiring change) |
| Minimum resistive load | 24 Ω (to 100 V), 12 Ω (to 70 V), 6 Ω (to 50 V) |
| Maximum capacitive load | 0,5 μF (to 100 V), 1 μF (to 70 V), 1 μF (to 50 V) |
| number of channels | 1 |
| Contribution | Specified by the input module VP-200VX |
| Number of module slots | 1, usable module: VP-200VX |
| Production | Power amplifier output (loudspeaker line): screw terminal M3.5, distance between barriers: 8,8 mm |
| Frequent response | 40 Hz - 16 kHz, ±3 dB (at 1/3 of nominal output) |
| Distortion | 1 % or less (at nominal output, 1 kHz) |
| Signal-to-noise ratio | 80 dB or more |
| Display panel | Channel power supply display: 1 channel, two-color LED display of overheating: Yellow LED |
| Operating temperature | 0 ℃ to +40 ℃ |
| Finish | Panel: Sheet steel with surface treatment, black, 30 % brightness, painted |
| Dimensions | 482 (width) × 88,4 (height) × 340,5 (depth) mm |
| Weight | 9,5 kg |
| Accessory | Rack mounting screw... 4, fibre ring... 4 |