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The two-channel 702 is a powerful file-based digital audio recorder. The compact device records and plays back audio to cost-effective, removable Compact Flash cards and/or external FireWire drives, making field recording simple and fast. It writes and reads uncompressed PCM audio at 16 or 24 bits with sampling rates between 32 kHz and 192 kHz. Compressed (MP3) audio playback is also supported.
The 702 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 702 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 Compact Flash storage is a highly-reliable industry standard. The removable, rechargeable battery is a standard Sony-compatible Li-ion camcorder cell. The Compact Flash card appears as a removable storage devices when connected via the FireWire port to Windows or Mac OS computers.
Key Features
- Two-channels of Sound Devices next generation microphone preamps with
phantom, limiters, and high-pass filters
- Records to removable Compact Flash
cards for convenient file audio file storage; can also record directly
to external FireWire drives
- 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 decoder, 64 to 320 kb/s stereo file
- FLAC file recording and playback
- FireWire (IEEE-1394) port
for high-speed computer access to the Compact Flash card
- 6-pin modular C.
Link serial input and output for unit linking and control with 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
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;
File Types, Playback and Record:
WAV, mono or polyphonic; MP2/MP3
@ 64, 96, 128, 240, or 320 kb/s stereo; FLAC mono and poly
File Utilities:
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 pass-through
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, 1-bit backlit display; tone
oscillator 100 Hz–10 kHz, variable output, assigned to tracks or
outputs (menu-selectable);
Dimensions and Weight:
45 mm x 209 mm x 125 mm (H x W x D) 1.8” x 8.2” x 4.9”
mass unpackaged: 1.0 kg, (2.1 lbs) without battery
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