Tascam DR-70D 6-Input / 4-Track Multi-Track Field Recorder with Onboard Omni Microphones
The DR-70D is a compact audio recorder that allows aspiring DSLR users 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-volt 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.
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 setup.
4XLR/TRS combo jack allows a wide range of setups
The four-channel design enables the 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.
Soft-Touch Controls
In the likely event that you need to use the transport and slate buttons while shooting, you don't need to worry about picking up clicks in the recording. The DR-70D's soft-touch rubber keys are designed for quiet operation to eliminate handling noise.
Stereo Safety Track Recording
Filmmakers and videographers often experience sudden audio volume spikes during filming. An actor could suddenly scream, or a documentary subject could do almost anything. The DR-70D has a dual-recording mode that captures a copy of your take (from a selectable mono or stereo input) up to 12 dB lower (adjustable in -1 dB increments) as a safety track in case of sudden distortion. 
Built-In Mixer
Enhance the sonic impact of your audio with the DR-70D's built-in mixer. Each input features adjustable panning, level, limiting, polarity, and up to 150ms of delay. Mitigate wind noise and low-frequency rumble by selecting the low-cut filter, which can be set at 40, 80, 120, 180, or 220 Hz.
Tone Generator for Synchronizing Files
An internal tone generator makes it easy to synchronize files recorded on the DR-70D and your camera. When the DR-70D is connected to a camera, the adjustable slate tone may be sent to the camera and recorded to the DR-70D. The resulting tones can be used as guides when synchronizing the files in video editing software. Generate slate tones automatically at the head (or head and tail) of each clip, or manually via the slate button. Playback can be skipped to the slate tone insert position using the data dial.
Supports External Remote Control
Hand- or foot-operated remote control is possible via the RC-3F footswitch or RC-10 wired remote (both available separately); start/stop recording, make marks, increment tracks, and more without having to touch the DR-70D.
Specifications
Portable Recorder
| Number of Tracks | 4 |
| Maximum Sampling Rate | 96 kHz / 24-Bit |
| Microphone | Built-In Omnidirectional Electret Condenser Stereo Pair, A/B Configuration |
| Built-In Speaker | No |
| Display | Monochrome LCD (Backlit) |
| Memory Card Support | SD (64 MB to 2 GB) SDHC (4 GB to 32 GB) SDXC (48 GB to 128 GB) |
| Internal Storage | None |
Recording
| Audio File Formats | BWF, WAV |
| Sample Rates |
WAV: 44.1 / 48 / 96 kHz |
| Bit Depth | 16 / 24-Bit |
| Signal Processing & FX | Delay, Limiter, Low-Cut Filter |
| Timecode Support | No |
| Recording Time |
WAV 44.1 kHz/16-Bit: 1 Hr 41 Mins per GB (Stereo) WAV 48 kHz/16-Bit: 1 Hr 33 Mins per GB (Stereo) WAV 96 kHz/16-Bit: 46 Mins per GB (Stereo) WAV 44.1 kHz/24-Bit: 1 Hr 7 Mins per GB (Stereo) WAV 48 kHz/24-Bit: 1 Hr 2 Mins per GB (Stereo) WAV 96 kHz/24-Bit: 31 Mins per GB (Stereo) |
Connectivity
| Analog I/O |
4 x Combo XLR-1/4" TRS Female Balanced Line/Mic Input (Lockable) 1 x 1/8" / 3.5 mm TRS Female Unbalanced Mic Input 1 x 1/8" / 3.5 mm TRS Female Unbalanced Camera Input 1 x 1/8" / 3.5 mm TRS Female Unbalanced Camera/Line Output 1 x 1/8" / 3.5 mm TRS Female Unbalanced Headphone Output 1 x 2.5 mm TRS Female Remote Input |
| Digital I/O | None |
| Phantom Power | +24 / 48 V ± 4 V (Selectable on Individual Inputs) |
| Phantom Power Current | 10 mA per Channel |
| Plug-In Power | Yes |
| Host Connection | 1 x Micro-USB (2.0) |
Performance
| Frequency Response |
Line Outputs, Mic/Line Inputs: 20 Hz to 20 kHz +0.5/-2 dB (at 48 kHz, JEITA) 20 Hz to 40 kHz +0.5/-3 dB (at 96 kHz, JEITA) |
| Gain/Trim Range |
Balanced Inputs: +21 dB to +63 dB Unbalanced Inputs: +3 dB to +38 dB |
| Max Input Level |
Mic Inputs: 0 dBu Line Inputs: +20 dBu 1/8" Inputs: +10 dBV Camera Inputs: +6 dBV |
| Max Output Level |
Camera Outputs: -24 dBV Line Outputs: +6 dB |
| Headphone Output Power | 20 mW per Channel |
| Impedance |
Mic Inputs: 2 Kilohms Line Inputs: ≥10 Kilohms 1/8" / 3.5 mm Inputs: 10 Kilohms Camera Outputs: 200 Ohms Line Outputs: 200 Ohms |
| SNR | ≥92 dB |
| THD | ≤0.02% |
| EIN | -120 dBu |
Power
| Power Options | Batteries, USB Bus Power, AC/DC Power Adapter |
| Battery Type | 4 x AA (Not Included) |
| Approximate Battery Life |
WAV 44.1 kHz/16-Bit: 6 Hours (AA Alkaline, 2 Channels, Phantom Off, Recording) 3.5 Hours (AA Alkaline, 2 Channels, Phantom On, Recording) 11 Hours (AA Alkaline, Recording, Built-In Mic) 6.25 Hours (AA NiMH, 2 Channels, Phantom Off, Recording) 3.25 Hours (AA NiMH, 2 Channels, Phantom On, Recording) 10.5 Hours (Alkaline, Recording, Built-In Mic) |
| AC/DC Power Adapter | 5 VDC at 1 A (Not Included) |
Physical
| Mounting Options | 1/4"-20 Female, Shoe Mount |
| Operating Temperature | 32 to 140°F / 0 to 40°C |
| Dimensions | 6.7 x 2.2 x 4.2" / 169 x 55.2 x 106.5 mm |
| Weight | 1.2 lb / 530 g (without Batteries) 1.4 lb / 625 g (with Batteries) |
Packaging Info
| Package Weight | 1.8 lb |
| Box Dimensions (LxWxH) | 10.75 x 8.15 x 4.35" |
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