| Modes | DDJ-4 |
| Input | 2 Phono, 4 Line, 1 mic |
| Output | 2 Master, 1 Booth via RCA |
| Minimum Input Voltage |
Output = 1Vrms |
| Phono | 0.85mV |
| Line | 50mV |
| Microphone | 0.4mV |
| Line | 6.8Vrms |
| Headphone | 0.3W |
| Frequency Range | +/-3dB |
| Phono | RIAA Standard +/-3dB |
| Line | 20Hz-20kHz |
| Microphone | 20Hz-18kHz |
| Distortion | 0.01% |
| S/N Ratio | With JIS-A Weight |
| Phono | 82dB |
| Line | 97dB |
| Microphone | 89dB |
| Talkover Attenuation | -16dB |
| Headphones Impedance |
33 Ohm |
| Tone Control | - |
| Treble (dB) | +10/-30 |
| Middle (dB) | +10/-30 |
| Bass (dB) | +10/-30 |
| eala (3D Surround) | - |
| Bass Effect | - |
