Sound Devices 744T Portable, Four

Sound Devices 744T Portable, Four
Sound Devices 744T Portable, Four-Track Audio Recorder with Time Code
Sound Devices 744T
Sound Devices 744T
The 744T is a powerful four-track file-based digital audio recorder.
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ManufacturerSound Devices
The 744T from Sound Devices is a powerful four-track file-based digital audio recorder. The super-compact 744T records and plays back audio
to and from its internal hard drive, Compact Flash cards, and external FireWire drives, making field recording simple and fast. It writes and reads
uncompressed PCM audio at 16 or 24 bits with sample rates between 32 kHz and 192 kHz. Compressed (MP3) audio recording and playback
from 64 kb/s to 320 kb/s is also supported. The time code implementation makes the 744T ready for any recording job—from over-the-shoulder
to cart-based production.
The 744T implements a no-compromise audio path that includes Sound Devices’ next generation microphone preamplifiers. Designed
specifically for high bandwidth, high bit rate digital recording, these preamps set a new standard for frequency response linearity, low distortion
performance, and low noise.
No other recorder on the market matches its size or feature set. In addition, its learning curve is quite short—powerful does not mean
complicated. While the 744T is a very capable recorder by itself, it truly excels when used in conjunction with an outboard audio mixer such as
Sound Devices’ own 552or 302.
Its recording media (hard drive, Compact Flash, and external FireWire drives) are reliable, industry standard, and easily obtainable storage. The
removable, rechargeable battery is a standard Sony-compatible Li-ion camcorder cell. The 744T interconnects with Windows and Mac OS
computers for convenient data transfer and backup.
Included Accessories
- XL-1394- Firewire power filter
- XL-WPH3 - power supply
- XL-RJ - C. Link cable
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Sound Devices 744T Portable, Four-Track Audio Recorder with Time Code
- CS-MAN- carrying pouch
Panel Views
744T Left Panel
744T Right Panel
- Two-channels of Sound Devices next generation microphone preamps with phantom, limiters, and high-pass filters
- Channel 3 and 4 line-level inputs on TA3 connectors
- Two-channel, balanced mic/line level outputs on TA3 connectors
- Input-to-track assignment with 256 possible routing combinations
- Record to its internal 80 GB hard drive, removable CompactFlash, external FireWire drive, or any combination of the three
- AES3 (XLR) or AES3id (unbalanced AES on BNC) digital inputs and AES3id outputs
- Programmable, sunlight-viewable LED level metering
- WAV (Broadcast Wave compliant), mono or poly files, uncompressed PCM audio
- 24-bit or 16-bit (with or without dither) and sampling at 32 kHz–192 kHz
- Ultra-stable Ambient time code circuitry, tuneable to - MP3 and FLAC record and playback capability
- FireWire (IEEE-1394) port for high-speed data transfer to computers
- 6-pin modular C. Link serial input and output for unit linking and future control and expansion
- Removable Li-on rechargeable battery compatible with Sony M- and L-mount Li-on batteries
- 10–18 VDC external input powers and charges on-board battery
- Aluminum & stainless-steel chassis for exceptional durability and light weight
- Class-defining compact size
- Designed for the same operational environmental extremes as Sound Devices field mixers
General Specifications
Sampling Frequency:
Internal Data Path and Processing:
A/D, D/A Converters:
A/D Dynamic Range:
D/A Dynamic Range:
Frequency Res. Mic or Line:
Equivalent Input Noise:
THD + Noise:
Gain: (input dBu to -20 dBFS)
Input Clipping Level:
- internal: 32, 44.1, 48, 48.048, 88.2, 96, 96.096, 176.4, 192 kHz
- external: 32–192 kHz via word clock input
- 32 bit, 192 dB dynamic range
- 24 bit, 192 kHz sample rate maximum
- 114 dB, A-weighted bandwidth
- 110 dB, 20 Hz – 22 kHz bandwidth
- 112 dB, A-weighted bandwidth
- 108 dB, 20 Hz–22 kHz bandwidth
- 10 Hz–40 kHz, +0.1, -0.5 (gain controls centered), Fs 96 kHz
- Mic: -133 dBu max (-135 dBV), 50 ohm source, A-weighted filter
- Mic: -131 dBu max (-133 dBV) max, 50 ohm source, 20 Hz–20 kHz
BW flat filter, gain fully up
- Mic: -130 dBu max (-132 dBV), 150 ohm source, A-weighted filter
- Mic: -128 dBu max (-130 dBV), 150 ohm source, 20 Hz–20 kHz BW
flat filter, gain fully up
- 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)
- Mic (normal gain mode): 25 to 70 dB; mic (low gain mode): 10 to 55
- Line: -6 to 18 dB, 0.1 dB increments
- Mic input: -5 dBu minimum (normal gain mode, gain control fully down)
- Mic input: +10 dBu minimum (low gain mode, gain control fully down)
- Line input: +26 dBu minimum (gain control fully down)
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Sound Devices 744T Portable, Four-Track Audio Recorder with Time Code
High-Pass Filters:
Mic Powering:
Mic Input Limiters:
Analog Line Output Clipping Level:
I/O – Digital:
Digital Storage:
Data Transfer / Control:
Time Code:
Dimensions and Weight:
- 40, 80, 160, 240 Hz @ 12/18/24 dB/oct (all menu selectable)
(each XLR selectable):
- 48 V phantom through 6.8k resistors, 10 mA per mic available, menuselected per channel in mic or line level positions
- analog (pre-A/D converter), dual-stage optocoupler and FET
- -4 dBFS threshold, 20:1 limiting ratio, 5 mS attack time, 200 mS
release time
- +24 dBu minimum, 10k ohm load
- Attenuation & Resolution 0 to 40 dB, 1 dB increments
- AES3-id 75 ohm, 0.5 V p-p, S/PDIF compatible with RCA adapter
- internal hard drive ATA-5 interface 1.8-in or 2.5-in hard drive
4200–7200 RPM supported, FAT32 formatted,; Compact Flash CF type
I, II, and + (microdrive) compatible, FAT32 formatted; file types: WAV or
BWF, mono or polyphonic; MP3 @ 64, 96, 128, 240, or 320 kb/s stereo;
utilities: format, speed test, and repair utility for internal HD and CF
- FireWire peripheral-mode,IEEE-1394a compliant, 6-pin FireWire,
Windows 2000, XP, Mac OS X only: C. Link 6-pin modular input and
output, RS-232 machine control, word clock, time code transfer
- 76-segment (4 x 19), sunlight-viewable, selectable peak, VU, or peak
(with or without peak hold) with VU ballistics, variable brightness
- modes supported: free run, record run, 24 hour run, continuous jam
- frame rates 23.976, 24, 25, 29.97DF, 29.97ND, 30DF, 30ND
- accuracy
- operating cell, removable 7.2 V (nominal) Sony M- or L-type Li-on,
operational from 6 – 8 V; time code battery, 1.2 V AA nickel metalhydride; power supply (external) 10–18 V, 1 A minimum, via locking
4-pin Hirose connector, use Hirose #HR10-7P-4P (DigiKey#
HR100-ND) for locking mating DC connector; pin-4 = (+), pin-1 = (-) or
pin-3 = (+) and pin-2=(-).
- operation and storage: ambient temperature 5–55° C, relative
humidity (non-condensing) <80%
- LCD Display 202 x 32 pixel, extended temperature, backlit display;
tone oscillator 100 Hz–10 kHz, variable output, assigned to tracks or
outputs (menu-selectable)
- 45 mm x 209 mm x 125 mm (H x W x D) 1.8” x 8.2” x 4.9” mass
unpackaged: 1.2 kg, (2.6 lbs) without battery
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