| Model | D4 |
| DSP engine | Dual 40-bit floating point DSP |
| 40-bit floating point DSP | 4x 3400W/4Ω |
| Propagation delay | 4ms@48kHz, 2ms@96kHz |
| I/O front connectors | |
| analog input | 4 x XLR3 |
| AES input | 1 x XLR3 |
| network | 1x RJ45 |
| Output | 2x 4 pole SpeakOn, 1x 8 pole SpeakOn |
| mains connector | True PowerCon |
| mains | 100-240 V |
| AC mains frequency range | 50/60 Hz |
| Dimensions (wxh) | 0.5x2 HE |