Tascam DR-70D

Compact, professional-grade audio recorder designed to be used in combination with a DSLR camera

Uses an SD/SDHC/SDXC card as recording medium (up to 128 GB)

High-quality recording inputs through Tascam original High Definition Discrete Architecture (HDDA) microphone preamps

NE5532 operational amplifiers for even higher audio performance (also used on DA-3000)

In addition to ordinary stereo recording, simultaneous recording of up to four channels is possible

Four channels can be mixed down to a stereo signal

Recording levels can be adjusted independently for inputs 1-4

Dual recording function allows two files to be recorded simultaneously at different levels

Recording at 44.1/48/96 kHz, 16/24-bit, linear PCM (WAV format)

Broadcast Wave Format (BWF) supported as WAV recording format

Two built-in omnidirectional microphones

Four XLR/TRS combo inputs can provide phantom power (+24V/+48V)

+24 dBu maximum input level (20 dB headroom)

Additional unbalanced input for channels 1 and 2 (stereo mini jack) supports mics that require plug-in power, allowing the input of video mics and other high-output mics

Switchable low-cut filter conveniently reduces low-frequency noise (40/80/120/180/220 Hz)

Switchable limiter to prevent clipping

Audio can be output to a DSLR camera for recording

Camera input enables convenient monitoring of audio from a DSLR camera

Selectable mid-side decoding for use with MS microphone setups

Slate tone functions (automatic/manual) to simplify synchronization of video files when editing

A new file can be created during recording

Selectable delay to eliminate time lags caused by differences in the distances of two input sources

QUICK button allows easy access to various functions

Slate tones can also be used for moving to specific locations

Equalizers for playback, and level alignment function to enhance the perceived overall sound pressure

File name format can be set to use a user-defined word or the date

Resume function to memorize the playback position before the unit is turned off

Line output and headphones output with individual level controls (3.5-mm jack)

Dedicated remote control jack for use with RC-10 and RC-3F (sold separately)

Hold switch to prevent accidental operation

Low-noise buttons

128 x 64 pixel LC display with backlight

USB 2.0 port

Stand adapter (¼ inch) on bottom side to attach the unit to a tripod

DSLR bracket for easy camera attachment and removal

Hot shoe mount (accessible when not using the DSLR bracket)

Handles on the front left and right sides protect the screen and can be used to attach a shoulder belt

Operates on four AA batteries, an optional AC adapter (Tascam PS-P520U), optional external battery pack (Tascam BP-6AA) or USB bus power

General

Recording media : SD cards (64 MB - 2 GB) / SDHC cards (4-32 GB) / SDXC cards (48-128 GB)
Recording/playback formats : WAV: 44.1/48/96kHz, 16/24-bit / BWF: 44.1/48/96kHz, 16/24-bit
Number of channels : 4 maximum (stereo x 2)

Analogue audio inputs and outputs

1/L, 2/R, 3/L, 4/R : XLR-3-31, 6.3-mm standard TRS jack (can provide phantom power)
EXT IN 1/2 : 3.5-mm stereo mini jack (can provide plug-in power)
IN : 3.5-mm stereo mini jack
PHONES : 3.5-mm stereo mini jack
OUT/LINE OUT : 3.5-mm stereo mini jack

Other inputs and outputs

USB port : Micro-B connector
Format : USB 2.0 HIGH SPEED mass storage class
REMOTE input : 2.5-mm TRS jack

Audio performance

Frequency response (LINE IN or MIC IN to LINE OUT, JEITA) : 20 Hz - 20 kHz +0.5/2 dB (Fs 44.1/48 kHz) / 20 Hz - 20 kHz +0.5/3 dB (Fs 96 kHz)
Distortion (LINE IN or MIC IN to LINE OUT, JEITA) : 0.02 % or less (Fs 44.1/48/96kHz)
S/N ratio (LINE IN or MIC IN to LINE OUT, JEITA) : 92 dB or more (Fs 44.1/48/96kHz)
Equivalent input noise (EIN) : 120 dBu or less
Figures are based on JEITA CP-2150

Recording times (4-GB SDHC card, hours: minutes)

WAV/BWF 16 bit/44.1 kHz (stereo) : 6:44
WAV/BWF 24 bit/96 kHz (stereo) : 2:04
The recording times shown above are estimates. They might differ depending on the SD/SDHC/SDXC card in use. The figures reflect the total possible recording time for the specified card. If recorded in mono WAV format, the maximum recording time will be double the figures above. When using dual/4-channel recording in WAV/BWF format, the maximum recording time will be about half the figures above.

Requirements for connected computers

Supported operating systems : Windows XP, Windows Vista, Windows 7, Windows 8 (including 8.1) Mac OS X 10.2 or newer

Power supply and other specifications

Power : 4 AA batteries (alkaline or NiMH) / USB bus power from a computer / AC adapter (TASCAM PS-P520U, sold separately) / External battery pack (TASCAM BP-6AA, sold separately)
Power consumption : 5 W (maximum)
Dimensions (W x H x D) - 169 mm x 55 mm x 107 mm (with top adapter attached)
Weight : 625 g (including batteries) - 530 g (excluding batteries)
Operating temperature range : 0-40 C

Approximate battery operation time (continuous operation, hours:minutes)

Alkaline batteries (EVOLTA)
2-ch recording, WAV format, 44.1kHz/16-bit : 6:00 (XLR/TRS input selected, phantom power not used) - 11:00 (MIC input 3/4 selected)
-
NiMH rechargeables (eneloop)
2-ch recording, WAV format, 44.1kHz/16-bit : 6:15 (XLR/TRS input selected, phantom power not used) - 10:30 (MIC input 3/4 selected)

NOTE:

When using phantom power, the operation time might be reduced depending on the mic being used.