Product Highlights
  • 4 Channels
  • XLR/TRS, 1/8", USB, 1/4" Connection
  • 16 / 24-bit Sample Rate
  • 44.1 / 48 / 96 kHz Sample Frequency
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Overview

The DR-70D is a compact audio recorder that allows the aspiring DSLR user to create audio recordings in very high quality in parallel to their film or video shots. The recorder can be mounted directly between a tripod and the camera or on top of the camera, resulting in a compact package.

With its two built-in microphones, the DR-70D is instantly ready for use in standard situations. In addition, it provides four XLR/TRS combo jacks which can be used to record four channels of audio with excellent sound quality using professional microphones. Thanks to a camera output the recorder’s stereo signal can be recorded also on the camera to ease subsequent editing of the material in combination with the slate tone function of the recorder. On the other hand you can use the camera input to monitor the audio of the camera using the recorder.

Features of the DR-70D include overload-resistant, great-sounding preamps with switchable low-cut filter and limiter, handling of microphone signals in mid/side format, 24- or 48-volts phantom power for condenser mics, as well as many common and not so common functions that facilitate capturing, monitoring and subsequent processing of the audio tracks.

Features

Two built-in Microphones
The two omnidirectional microphones allow you to easily record natural stereo sound with just this unit. Used together with small shotgun mics, you can even record audio from people speaking in an interview and the ambient sound at the same time (on different tracks), for example, with a compact set up.

4 XLR/ TRS Combo jacks allow a wide range of setups
The four-channel design enables use of two shotgun mics and the stereo mic to record ambiance and each speaker individually. Since channels 1 and 2 can be set to the stereo input and channels 3 and 4 can be set to the built-in mic, a large variety of microphone setups is possible.

  • MONO/DUAL MONO mode: This is best for recording the audio of a single performer.
  • STEREO/DUAL STEREO mode: This is best for recording with the built-in microphone or a stereo mic.
  • 2MIX/DUAL 2MIX mode: This creates stereo files of the signals of multiple inputs that have been mixed.

Built-in mixer with 4 inputs and 2 outputs
The mixer can take a total of 4 channels from among the four XLR inputs that support phantom power, the stereo mini-jack input and the built-in stereo mic. In addition to enable pan and level adjustments, this unit also offers a limiter, a five-setting low-cut filter and a delay that can compensate for distances between mics. Moreover, a mid-side decoding function allows the use of two microphones in mid-side configuration.

High audio quality through HDDA microphone preamps.
Mic preamps, which receive and amplify microphone input signals, have a large impact on the quality of the recorded audio material. The DR-70D uses Tascam original HDDA (High Definition Discrete Architecture) microphone preamps that we created through careful selection of parts. For example, we chose the NE5532 for the operational amplifier, which has a strong effect on audio quality. With a mic amp circuit that uses discrete architecture comprised of meticulously-chosen parts, we have achieved an equivalent input noise of −120 dBu.

The A/D converter that converts analogue signals to digital is made by Cirrus Logic and is equivalent to those used in our successful DR series of linear PCM recorders. Recording at resolutions up to 96 kHz/24 bit is supported.

Compact and Tough Design
The designer of the DR-70D focused on making the unit small so that it does not interfere with camera-work when it is attached to a camera support system or stabilizer. The unit has tripod screw threads on the bottom side and a removable camera attachment screw on its top. A hot shoe mount is also included so you can attach the recorder in the way most convenient for you by placing it between a tripod and the camera or on top of the camera with a hot shoe.

  • 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

Camera input and output
The DR-70D has a camera input jack that can be used to monitor the audio from the DSLR camera. By using this with the DR-70D monitor selection function, you can efficiently monitor the audio from not only the DR-70D but also from the DSLR camera.

The camera output jack is designed to output the mixed audio to the camera so that the same audio can be recorded by the DR-70D and the camera. Since the input level varies by camera maker and there are usually few adjustments related to volume on DSLR cameras, this unit has an output volume dial that can be used to make adjustments.

Slate tone generator for easy alignment with video files
The built-in generator can produce slate tones that can be used as references when aligning audio and video. In addition to being able to produce slate tones when recording starts or when it starts and stops, the SLATE button can be used to add slate tones at any desired point.

  • Automatic insertion: Choose from inserting a slate tone at the beginning of recording or at both the beginning and end of recording
  • Manual insertion: Press the SLATE button to produce a tone.

Additional Features

  • 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 Hz, 80 Hz, 120 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 (manually or by file size)
  • Selectable delay to eliminate time lags caused by differences in the distances of two input sources
  • QUICK button allows easy access to various functions
  • Mark function convenient 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 AC adapter (sold separately: TASCAM PS-P515U), external battery pack (sold separately: TASCAM BP-6AA) or USB bus power

Reviews

Product Specifications

Recording media SD card(64MB to 2GB), SDHC card(4GB to 32GB), SDXC card(48GB to 128GB)
Recording format  
WAV 44.1k / 48k / 96k Hz, 16bit / 24bit
BWF 44.1k / 48k / 96k Hz, 16bit / 24bit
Number of channels 4-channel (stereo × 2, mono × 4)
Analog audio input  
1/L, 2/R, 3/L, 4/R connectors  
Connector XLR-3-31 (1:GND, 2:HOT, 3:COLD) / 6.3mm(1/4")TRS standard jack
Set to "MIC / MIC+PHANTOM"  
Input impedance 2k ohms
Phantom power 48V +/-4V(10mA/CH), 24V +/-4V(10mA/CH)
Maximum input level 0dBu
Minimum input level -72dBu
MIC input gain TRIM MAX
LOW +11dB
HIGH +51dB
HI + PLUS +63dB
Set to "LINE"  
Input impedance 10k ohms or more
Standard input level +4dBu
Maximum input level +20dBu
1/2 connector  
Connector 3.5mm(1/8")stereo mini jack  (this connector can be supplied plug-in power)
Input impedance 10k ohms
Maximum input level +10dBV
Minimum input level -50dBV
MIC input gain TRIM MAX
LOW +3dB
HIGH +26dB
HI + PLUS +38dB
CAMERA IN connector  
Connector 3.5mm(1/8")stereo mini jack
Input impedance 10k ohms
Standard input level -10dBV
Maximum input level +6dBV
Analog audio output  
LINE OUT connector  
Connector 3.5mm(1/8")stereo mini jack
Output impedance 200 ohms
Standard output level -10dBV
Maximum output level +6dBV
CAMERA OUT connector  
Connector 3.5mm(1/8")stereo mini jack
Output impedance 200 ohms
Standard output level -40dBV
Maximum output level +24dBV
PHONES connector  
Connector 3.5mm(1/8")stereo mini jack
Maximum output level 20mW + 20mW
USB  
Connector Micro-B type
Format USB2.0 HIGH SPEED mass storage class
REMOTE  
Connector 2.5mm TRS jack
Power 4 AA batteries(Alkaline or NI-MH), 
USB bus power, 
Dedicated AC adapter(TASCAM PS-P515U, sold separately), 
Dedicated external battery pack(TASCAM BP-6AA, sold separately)
Power consumption 5.0W
Continuous operation time 2ch WAV, 44.1kHz, 16bit rec
Phantom power not used
DR-70D Battery Life (hours:minutes)  
Alkaline batteries (EVOLTA) About 6:00 : When XLR/TRS input selecte (Phantom off)
About 3:30 : When XLR/TRS input selecte (Phantom on)
About 11:00 : When 3/4 MIC (Built-in Mic) selected
NI-MH batteries (eneloop) About 6:15 : When XLR/TRS input selecte (Phantom off)
About 3:15 : When XLR/TRS input selecte (Phantom on)
About 10:30 : When 3/4 MIC (Built-in Mic) selected
NI-MH batteries
(eneloop pro)
About 7:45 : When XLR/TRS input selecte (Phantom off)
About 4:45 : When XLR/TRS input selecte (Phantom on)
About 14:15 : When 3/4 MIC (Built-in Mic) selected
DR-70D + BP-6AA *BP-6AA is using the alkaline batteries (EVOLTA).
Alkaline batteries (EVOLTA) About 13:00 : When XLR/TRS input selecte (Phantom off)
About 7:30 : When XLR/TRS input selecte (Phantom on)
About 25:30 : When 3/4 MIC (Built-in Mic) selected
NI-MH batteries (eneloop) About 12:45 : When XLR/TRS input selecte (Phantom off)
About 7:45 : When XLR/TRS input selecte (Phantom on)
About 24:45 : When 3/4 MIC (Built-in Mic) selected
NI-MH batteries
(eneloop pro)
About 14:30 : When XLR/TRS input selecte (Phantom off)
About 8:45 : When XLR/TRS input selecte (Phantom on)
About 27:00 : When 3/4 MIC (Built-in Mic) selected
Dimensions 6.65(W)×2.2(H)×4.2(D)in
169(W)×55.2(H)×106.5(D)mm
(with the top adapter attached)
Weight 1.37lb ( including batteries) / 1.16lb (without batteries )
625g ( including batteries) / 530g (without batteries )
Operating temperature 0 to 40°C
Standard accessories USB cable, Camera attachment bracket screw hole covers × 6 Owner's Manual (including warranty)
Audio performance
Frequency response 20-20kHz +0.5/-2dB(LINE IN or MIC IN to LINE OUT, Fs44.1k/48k Hz, JEITA)
20-40kHz +0.5/-3dB(LINE IN or MIC IN to LINE OUT, Fs96kHz, JEITA)
Distortion 0.02% or less(LINE IN or MIC IN to LINE OUT Fs44.1k/48k/96k Hz, JEITA)
S/N ratio 92dB or more(LINE IN or MIC IN to LINE OUT Fs44.1k/48k/96k Hz, JEITA)
Equivalent input noise -120dBu or less
Computer compatibility
Windows
OS Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1
CPU Pentium 300MHz or more
RAM 128MB or more
USB recommended: USB2.0
Macintosh
OS Mac OS X Jaguar (V10.2), Mac OS X Panther (V10.3), Mac OS X Tiger (V10.4),
Mac OS X Leopard (V10.5), Mac OS X Snow Leopard(V10.6.8), OS X Lion(V10.7),
OS X Mountain Lion(V10.8), OS X Mavericks(10.9)
CPU Power PC, iMac, G3, G4 266MHz or more
RAM 64MB or more
USB recommended: USB2.0

 

Questions & Answers

Tascam DR-70D Linear PCM Recorder

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