Sound Devices 888 Multitrack Recorder

Analog Inputs
Frequency Response
* 10 Hz to 80 kHz ± 0.5 dB (192 kHz sample rate, re 1 kHz)
THD + Noise
* 0.005% max (mic in, 1 kHz, 22 Hz–22 kHz BW, trim at 20, fader at 0, -10 dBu in)
Equivalent Input Noise
* -131 dBV (-129 dBu) max (mic in, A-weighting, 76 dB gain, 150 ohm source impedance)

Processing Engine
– Highly extensible, full FPGA-based audio processing, 3 FPGAs
– Six-way ARM multiprocessor system
– 64-bit audio processing precision

Audio Over Ethernet
– Dante, AES67 compatible
– 16 channels in, 16 channels out (up to 192 kHz)
– 1 Gb/s Ethernet, 1 port, transformer-balanced

Inputs
Mic/Line inputs
– 8 total, all fully featured; 4 on full-size XLR, 4 on TA3
Mic-level inputs: (XLR, TA3): Class-A, discrete differential long-tail pair, 4k ohm input impedance
– Line-level inputs: (XLR, TA3): active-balanced, 4k ohm input impedance
– 48V phantom: full 10mA to all 8 inputs simultaneously
– AES3 or AES42 available on XLR input 1
– AES42: +10 V, 250 mA available, mode-1, auto-ASRC
– Rtn A (TA3): unbalanced 2-channel, 4k ohm input impedance
– Rtn B (3.5 mm): unbalanced 2-channel, 4k ohm input impedance
– Com Rtn (TA3) balanced, 1-channel, 8k ohm input impedance
– External Slate Mic (TA5): balanced, 8k ohm input impedance
Maximum Input Level
– Mic: +8 dBu (2.0 Vrms)
– Line: +28 dBu (19.5 Vrms)
– Rtn A, B: +18 dBu (6.2 Vrms)
– Com Rtn: +24 dBu (12.3 Vrms)
– External Slate Mic: +12 dBu (3.2 Vrms)

Limiters
– Limiters available at all channels, buses and headphones for all sample rates
– Analog first stage, all subsequent stages digital
– Attack time: 1 ms
– Release time: adjustable, 50 ms to 1000 ms
– Threshold: adjustable, -2 dBFS to -12 dBFS
– Selectable ratio: inf:1, 20:1, 18:1, 16:1, 14:1, 12:1, 10:1

Maximum Gain
– Trim stage (mic input): 76 dB
– Trim stage (line input): 50 dB
– Fader stage: 16 dB
– Bus stage: 16 dB
– Headphone stage: 20 dB
– Mic-to-Line: 108 dB
– Mic-to-Headphone: 112 dB

Outputs
– XLR (L, R) active-balanced, 250/3.2k/120 ohms (mic/-10/line)
– TA3 (X1-X4) active-balanced, 250/3.2k/120 ohms (mic/-10/line)
– 3.5mm (X5, X6, X7, X8): unbalanced, stereo, 1.8k ohms
Headphone Outputs
– ¼”, 3.5 mm
– TA5 (along with mic input pins) for single connection to headset + mic
– High output, 4 ohm output impedance, 400 mW + 400 mW at each connector, all individually driven
– Compatible with headphones of any impedance
Maximum Output Level (all into 10k load)
– Line: +20 dBu (7.8 Vrms)
– “-10”: +6 dBu (1.5 Vrms)
– Mic: -20 dBu (0.078 Vrms)
– X5/X6 Out: +6 dBu (1.5 Vrms)
– Headphone outputs (¼”, TA-5, X7/X8): +14 dBu (4.0 Vrms)
Digital Outputs
– AES3 transformer-balanced, in pairs; 1-2 (XLR-L), 3-4 (XLR-R),
– 110 ohm, 2 V p-p, AES and S/PDIF compatible

Recording
A/D Converters
– 32-bit, 120 dB, A-weighted dynamic range typical
– Sampling rates 44.1 kHz, 47.952 kHz, 48 kHz, 48.048 kHz, 88.2 kHz, 96 kHz, 192 kHz
Bit Depth
– 16, 24
Recording
– Internal 256 GB SSD; two removable SD Cards. Each 10% over-provisioned (reserved free space) for optimum performance
– Simultaneous recording to internal SSD and the two SD cards
– exFAT formatting
– 20 tracks (16 iso channels, 4 buses)
– Broadcast WAV monophonic and polyphonic file format
– 64-bit WAV (RF64) monophonic and polyphonic; support for files > 4 GB
– AAC 2 track at 48 kHz, selectable bit rate 32, 64, 128, 192, 256 kbps