[PR-4] System Settings & Specifications
PR-4 system settings (mode, Bluetooth, power, display, firmware) and full specifications.
This guide covers the PR-4 system settings and the full specifications. During recording, PR4 Mode, USB, Date/Time, and Firmware are greyed out.
System Settings
- UserSet: save all settings to one of three presets (Custom 1 to 3), load a preset, or reset to factory defaults.
- PR4 Mode: Basic (gain only, no faders) or Expert (fader and gain). Factory default is Basic.
- BT: turn Bluetooth on or off and reset it. The MAC address identifies the device when connecting the app.
- HP Knob Control: choose whether the Select knob adjusts headphone Volume or headphone routing (Set).
- USB: choose the SD Reader or SSD Reader for file transfer when connected to a computer.
- Battery: select the NP-F550 capacity (3320 mAh Deity or 2200 mAh) for accurate runtime. The Deity NP-F550 is recommended; TOPRIG and ZITAY NP-F550 are also compatible.
- Brightness: five levels; the default is the brightest (5).
- Logo LED: turn the rear DEITY logo light on or off.
- Language: Chinese or English.
- Date/Time: set the clock. Recorded files follow this date for the date-based folders.
- Upgrade: update firmware from the SSD, SD card, or the Sidus Audio app. Place the firmware in the card's root directory and follow the prompts.
- Firmware: view the current app and hardware versions and their dates.
Specifications
| Sampling Rate | 48kHz, 96kHz, 192kHz |
| Bit Depth | 24-bit, 32-bit, 32-bit float |
| Recording Format | .WAV |
| SSD Storage | Built-in 64G |
| SD Card Support | Up to 1TB |
| Timecode Support | LTC / ATC / Wireless Timecode |
| TC FPS | 23.98F, 24F, 25F, 29.97F, 29.97DF, 30F, 47.95F, 48F, 50F, 59.94F, 59.94DF, 60F |
| Analog Input Channels | 4 |
| Analog Output Channels | 2 |
| Digital Input Channels | 4 |
| USB Audio I/O | 2 Output |
| Headphone Monitor | 1 channel, recommended impedance >16Ω |
| Phantom Power | 48V |
| Max Input Level | Line 24dBu; Mic 11dBu |
| Input Gain Range | Mic / 48V / AES42: 0 to +60dB; Line: -20 to +30dB; AES3: -20 to +40dB |
| Input Frequency Response | 20 to 80kHz (192kHz sample rate) |
| Input Dynamic Range | 137dB |
| Input Noise Floor (EIN) | -127dBV (mic in, A-weighted, gain 60dB, 150Ω load) |
| THD+N | 0.005% |
| Max Output Level | Line 8dBu; Headphone 8dBu |
| Power Options | NP-F550 battery, Hirose 4-pin, USB-C |
| Battery Life | Approx. 8.5h (F550) |
| Voltage | NP-F550 7.3V; DC 12 to 18V; USB-C 5/9/12V |
| Dimensions | 98 x 80 x 41mm (H x W x D) |
| Weight | 218g (without battery) |
| Operating Temperature | -20°C to 50°C |
64G SSD Recording Time (single track, estimated)
| .WAV 48kHz / 24-bit | ~113 h |
| .WAV 48kHz / 32-bit (or 32-bit float) | ~86 h |
| .WAV 96kHz / 24-bit | ~56 h |
| .WAV 96kHz / 32-bit (or 32-bit float) | ~42 h |
| .WAV 192kHz / 24-bit | ~28 h |
| .WAV 192kHz / 32-bit (or 32-bit float) | ~21 h |
Multitrack recording reduces available time proportionally. Specifications are measured by the Aputure Audio Laboratory and are subject to actual product data.