788T Multi-Track Digital Audio Recorder Overview Pt. 2

This is a continuation of an overlook of the 788T with listed key features as well as specifications of the device. All of this information can be found in the video as well. I stand behind the 788T and think its simply stellar as witnessed in my last post. This overview of the 788T is a 3 part segment. If you would like to view part 1 of this overview, you can click here. Part three will be released tomorrow.  Enjoy.

Key Features

  • Eight mic/line inputs, each controlled with front panel, pop-out gain controls
  • 12-track recording, to record iso’s, stereo mix track, and two-track aux, Aux1, Aux2
  • Each input has solo headphone monitoring, 48 V phantom, limiter, polarity reverse, high-pass, and selectable delay
  • Selectable sampling rate converters on each digital input
  • Sampling rate selectable up to 96 kHz
  • AES42 digital microphone support
  • Backlit LCD display viewable in any environment
  • 8 x 13-segment Peak/VU meters with arm LED
  • Word clock in and out with tri-level video sync support
  • Time code generator supports all data rates; holds time code for four hours with no power sources attached
  • Internal 160 GB, 2.5-inch SATA hard drive; 256 GB SSD in the 788T-SSD
  • CompactFlash slot with UDMA support
  • Powered by removable Li-ion rechargeable batteries
  • External DC power input operates unit and charges Li-ion battery
  • Back panel multi-pin connector for one-cable connection to digital mixing board (AES input/output, power, switch closure in/out)
  • FireWire 400/800 and USB 2.0 connections for ultra-fast file tranfer between 788T’s CF and HDD to computer
  • USB keyboard input for control
  • Aluminum & stainless-steel chassis for exceptional durability and light weight
  • Designed for the same operational environmental extremes as Sound Devices field mixers


Sampling Frequency:

internal: 32, 44.1, 47.952, 48, 48.048, 88.2, 96, 96.096
external clocking: 32–96.096 kHz via word clock or digital inputs

Internal Data Path and Processing:
32 bit, 192 dB dynamic range

A/D, D/A Converters:
24 bit, 96.096 kHz sample rate maximum

A/D Dynamic Range:
123 dB, A-weighted bandwidth
120 dB, 20 Hz–22 kHz bandwidth

D/A Dynamic Range:
114 dB, A-weighted bandwidth
111 dB, 20 Hz–22 kHz bandwidth

112-segment (8 x 14), sunlight-viewable, selectable peak, VU, or peak (with or without peak hold) with VU ballistics, variable brightness

Frequency Res. Mic or Line:
10 Hz–20 kHz, +0.1, -0.5 (gain controls centered, measured at 48 kHz)

THD + Noise:
Mic: 0.004% max (1 kHz, 22 Hz–22 kHz BW, gain control down, -15 dBu input); line: 0.004% max (1 kHz, 22 Hz–22 kHz BW, gain control down, +16 dBu input)

Gain: (input dBu to -20 dBFS)
Mic: Off (0) to 76.0 dB Line: Off, -26.0 to 50.0 dB

Input Impedance
Mic (XLR and TA3): 3.3k ohm; Line (XLR and TA3): 3.3k ohm

Input Clipping Level:
Mic input: +8 dBu minimum (gain = 10 dB); line input: +26 dBu minimum (gain = 0 dB)

Input Topology Mic and Line
fully electronically balanced, RF, ESD, short, and overload protected; pin-2 hot, pin-3 cold

Gain Matching Mic/Line inputs
0.1 dB increments, channel-to-channel while linked

Common Mode Rejection Ratio
Mic: 40 dB minimum at 80 Hz

High-Pass Filters:
40-320 Hz in 10Hz steps @ 6/12 dB/oct (Setup Menu selectable)

Mic Powering:
(each analog input selectable): 48 V phantom through 6.8k resistors, 10 mA per mic available, menu-selected per channel in mic or line level positions

Mic/Line Input Limiters:
Variable threshold -12 to -2 dBFS; Infinite:1 limiting ratio, 2 mS attack time, menu-selectable release time 200-2000 mS, soft-knee starting approximately 6dB below setting.

Line Output Clipping Level:
+24 dBu minimum, 10k ohm load

Attenuation & Resolution:
0–20 dB, 1 dB increments

Output Topology Line:
fully electronically-balanced, RF, ESD, short, and overload protected; pin-2 driven hot, pin-3 driven cold; let pin-3 float for unbalanced connections.

I/O – Digital:
Balanced AES in 1-8 on DE15 connector 110 ohm, 2 V p-p, AES and S/PDIF compatible with RCA adaptor, AES42 mode 1 compatible and provides 10 V to AES42 microphones
AES3 Balanced AES out 1-4 on TA3 connector; Balanced AES out 5-6 on DE15 connector 110 ohm, 2 Vp-p, AES and S/PDIF compatible with RCA adaptor;

Digital Storage:
internal hard drive SATA interface 2.5-in hard drive 4200–7200 RPM supported, solid-state drive (SSD) support, FAT32 formatted, up to 2 TB addressable
CompactFlash CF type I, II, and + (microdrive) compatible, UDMA (300x) compatible, FAT32 formatted, up to 2 TB addressable

File Types:
Record: WAV (AES-31 format), mono or polyphonic, at supported Fs, 24-bit or 16-bit;
Playback: WAV (AES-31 format), mono or polyphonic, at supported Fs, 24-bit or 16-bit;
MP3 @ 32, 64, 96, 128, 160, 192, 256, or 320 kb/s stereo; MP2 @ 64, 96, 128, 160, 192, 256, or 320, 384 kb/s stereo

Drive formatting and speed test for internal hard drive, CF and external drive volumes

Data Transfer / Control:
FireWire 400: For connection to external drives and computers: IEEE-1394a compliant, 6-pin FireWire, Windows 2000, XP, Vista, 7) Mac OS X only
FireWire 800: For connection to external drives and computers: IEEE-1394b compliant, 8-pin FireWire, Windows (2000, XP, Vista, 7), Mac OS X only
USB 2.0: Slave mode only. For connection to Windows( 2000, XP, Vista,7) Mac OS X only
USB Keyboard Input: For connection to USB keyboards, CL-8, and CL-9.

Time Code:
Modes Supported: Off, free run, record run, 24 hour run, external time code receive
Frame Rates: 23.976, 24, 25, 29.97DF, 29.97ND, 30DF, 30ND, 30+
Accuracy: 0.2 ppm, when tuned with Ambient Master Controller, holds TC clock for 4 hours after main battery removal; after 4 hours, retains time of day
Input / Output 20k ohm impedance, 0.3V p-p (–8 dBu) minimum / 1k ohm impedance, 3.0V p-p (+12 dBu)

Word Source:
Internal Sync: internal word clock generator
External Sync Input: Word Clock, AES3, or Video (NTSC, PAL, and Tri-Level)
Word Clock Output: Square wave, running at sample rate, 3.3 V p-p, 75 ohm

Power supply (batteries): operating cell, removable 7.2 V (nominal) Sony L-type Li-ion, operational from 6.5–8.5 V, time code battery, internal 3.6 Li–ion
Power supply (external): 10–18 V, 1000 mA minimum, via locking 4-pin Hirose connector, use Hirose #HR10-7P-4P (DigiKey# HR100-ND) for locking mating DC connector; pin-1 (-), pin-4 (+).

Operation and Storage ambient temperature 5–55° C, relative humidity (non-condensing) 80%

Tone Oscillator: 100 Hz–10 kHz, variable output, assigned to tracks or outputs (menu-selectable)

Dimensions and Weight:
Size: 45 mm x 257 mm x 163 mm (H x W x D) 1.8” x 10.1” x 6.4”
Mass: unpackaged: 1.7 kg, (3 lbs 12 oz.) without battery


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