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Untitled Document
Manufacturer's Description:
The two-channel 702T is a powerful two-track file-based digital audio
recorder with time code. The super-compact device records and plays back to
convenient, removable Compact Flash cards, 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 playback is also
supported. The time code implementation makes the 702T perfect for any
dual-system video or film production application.
The 702T 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
702T is a very capable recorder by itself, it truly excels when used in
conjunction with an outboard audio mixer such as Sound Devices’ own 442 or 302.
Its two recording media (hard drive and Compact Flash) are highly reliable,
industry standard, and easily obtainable. The removable, rechargeable battery is
a standard Sony-compatible Li-ion camcorder cell. The 722 interconnects with
Windows and Mac OS computers for convenient data transfer and backup.
Features:
- Two-channels of Sound Devices next generation microphone preamps with
phantom, limiters, and high-pass filters
- Records to convenient, removable Compact Flash storage
- Full-function, ultra-stable Ambient time code functionality, tuneable to
<0.2 PPM accuracy with all relevant TC rates
- AES3 (XLR) or AES3id (unbalanced AES on BNC) digital inputs and AES3id
outputs
- Programmable, sunlight-viewable LED level metering
- WAV format, mono or poly files, uncompressed PCM audio
- 24-bit or 16-bit (with or without dither) and sampling at 32 kHz-192 kHz
- MP3/ MP2 file playback
- FireWire (IEEE-1394) port for high-speed data transfer to computers
- 6-pin modular C. Link serial input and output for unit linking and control
and expansion using the CL-1
- 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
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Specifications |
Sampling Frequency:
internal: 32, 44.1, 48, 48.048, 88.2, 96, 96.096, 176.4, 192
kHz
external: 32–192 kHz via word clock input |
| Internal Data Path and
Processing:
32 bit, 192 dB dynamic range |
| A/D, D/A Converters:
24 bit, 192 kHz sample rate maximum |
A/D Dynamic Range:
114 dB, A-weighted bandwidth
110 dB, 20 Hz – 22 kHz bandwidth |
D/A Dynamic Range:
112 dB, A-weighted bandwidth
108 dB, 20 Hz–22 kHz bandwidth |
| Frequency Res. Mic or Line:
10 Hz–40 kHz, +0.1, -0.5 (gain controls centered), Fs 96 kHz |
Equivalent Input Noise:
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 |
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 (normal gain mode): 25 to 70 dB
Mic (low gain mode): 10 to 55 dB
Line:
-6 to 18 dB, 0.1 dB increments |
Input Clipping Level:
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) |
| High-Pass Filters:
40, 80, 160, 240 Hz @ 12/18/24 dB/oct (all menu selectable) |
| Mic Powering:
(each XLR selectable): 48 V phantom through 6.8k resistors, 10 mA per mic
available, menu-selected per channel in mic or line level positions |
Mic Input Limiters:
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 |
Analog Line Output Clipping
Level:
+24 dBu minimum, 10k ohm load
Attenuation & Resolution 0 to 40 dB, 1 dB increments |
| I/O – Digital:
AES3-id 75 ohm, 0.5 V p-p, S/PDIF compatible with RCA adapter |
| File Storage:
Compact Flash CF type I, II, and + (microdrive) compatible, FAT32 formatted,
2 TB maximum |
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 CF cards |
| Data Transfer / Control:
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 |
Time Code:
Modes supported: free run, record run, 24
hour run, continuous jam
Frame rates: 23.976, 24, 25, 29.97DF,
29.97ND, 30DF, 30ND
Accuracy: <0.2 ppm, when tuned with Ambient
Master Controller; holds TC clock for 2 hours after main battery removal (AA
time code battery installed); retains time of day |
| Metering:
38-segment (2 x 19), sunlight-viewable, selectable peak, VU, or peak (with
or without peak hold) with VU ballistics, variable brightness |
Powering:
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 metal-hydride
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=(-). |
| Environmental:
operation and storage: ambient temperature 5–55° C, relative humidity
(non-condensing) <80% |
| Other: 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) |
Dimensions and Weight:
1.8” x 8.2” x 4.9” (45 mm x 209 mm x 125 mm) (H x W x D)
Mass unpackaged: 1.0
kg, (2.1 lbs) without battery |
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