Tascam DR-70D - 4-Channel Audio Recording Device for DSLR and Video Cameras

PRODUCT HIGHLIGHTS
- Records 4 Channels Simultaneously
- Camera & Follow-Focus Cage Mountable
- BWAV Format for NLE Compatibility
- Dual Built-In Omnidirectional Mics
- Dedicated Camera Output
- Slate Function
- Dual Record Function
- Limited & High-Pass Filter
- Records to SD, SDHC, SDXC Cards

Designed as an audio recording solution for filmmakers, the DR-70D 4-Channel Audio Recording Device for DSLR and Video Cameras from Tascam features dual built-in omnidirectional microphones and is capable of recording up to 4 tracks simultaneously. 
It has tripod mounts on both the top and bottom of the unit and can be mounted above or below your DSLR or video camera as well as on a follow-focus cage. 
Recording to SD, SDHC, or SDXC cards up to 128GB, the DR-70D tracks in BWAV format for NLE compatibility. 
All integral parameters feature dedicated hardware controls, so you never have to go searching through menus to quickly change a setting. A dedicated camera output lets you send a mic-level signal to your camera's audio input to create a reference track for easier synching in post, while the dedicated headphone output allows you to monitor your audio.
Designed for use with video and DSLR cameras and can be screwed to the bottom of a DSLR camera with jacks and controls that stay out of the way
Simplified interface with controls on hardware switches and knobs instead of menus, for quick adjustment during a take
Dual record function captures a safety track to have a backup in case of distortion
Tascam's HDDA microphone preamps which are designed for low noise, low distortion, and full-bandwidth
BWAV format capture for NLE compatibility
Limiter and high-pass filter prevent wind or mic bumps from overdriving the recording
Microphone level camera output allows you to record the same audio to the camera for easy synchronization in your editor
Records to SD/SDHC/SDXC media
Individual headphone and camera outputs allows you to monitor recording with headphones while sending another output to the camera
Slate function records a tone for precise synchronization between DR-70D and camera audio in post
4-track recording records from four XLR microphone inputs
Built-in omnidirectional microphones allow you to record without packing mics
Runs on 4 AA batteries

Recording Media
Media
- SD card (64 MB to 2 GB)
- SDHC card (4 to 32 GB)
- SDXC card (48 to 128 GB)

Recording Format
Recording Format:WAV & BWF 44.1 to 96 kHz, 16/24-bit

Channels
Number of Channels4 channels (2x stereo or 4x mono)

XLR Inputs
Connector:4x Combo XLR/TRS Connectors (1: Ground, 2: Hot, 3: Cold)

Input Impedance:
- Mic/Mic + Phantom Power: 2 kOhms
- Line: 10 kOhms or more

Phantom Power:48 V +/-4 V(10 mA/CH), 24 V +/-4 V(10 mA/CH)

Input Level:
- Mic/Mic + Phantom Power: 0 dBu standard, -72 dBu maximum
- Line: +4 dBu standard, +20 dBu maximum

Mic Input:
- Mic Input Gain: +11 dB (low), +51 dB (High), +64 dB (Hi + Plus)

Stereo Mini Input
Connector:1/8" (3.5 mm) stereo mini jack (this connector can be supplied plug-in power)
Input Impedance:10 kOhms
Input Level
- Minimum Input Level: -50 dBV
- Maximum Input Level: +10 dBV

Input Gain:
Mic Input Gain: +3 dB (Low), +26 dB (High), +38 dB (High + Plus)

Camera In
Connector:1/8" (3.5 mm) stereo mini jack
Input Impedance:10 kOhms
Input Level:
- Standard Input Level: -10 dBV
- Maximum Input Level: +6 dBV

Audio Output
Line Output:
- Connector: 1/8" (3.5 mm) stereo mini jack 
- Output Impedance: 200 ohms
- Standard Output Level: -10 dBV
- Maximum Output Level: +6 dBV
Camera Out:
-Connector: 1/8" (3.5 mm) stereo mini jack 
-Output Impedance: 200 ohms
-Standard Output Level: -40 dBV
-Maximum Output Level: -24 dBV

Headphone Output
Connector:1/8" (3.5 mm) stereo mini jack
Maximum Output Level:20 mW + 20 mW

USB

Connector:Micro-B type
Format:USB 2.0 High Speed mass storage class
Remote
Input:2.5 mm TRS jack (remote sold separately)

Power

Power Source:
- 4x AA batteries (Alkaline or Ni-MH)
- USB Bus power
- Optional AC Adapter
- Optional Battery pack
Power Consumption:5 W

Audio Performance

Frequency Response:
- 20 Hz to 20 kHz +0.5/-2 dB (LINE IN or MIC IN to LINE OUT, Fs 44.1/48 kHz, JEITA)
- 20 Hz to 40 kHz +0.5/-3 dB(LINE IN or MIC IN to LINE OUT, Fs 96 kHz, JEITA)
Distortion:0.02% or less (LINE IN or MIC IN to LINE OUT Fs 44.1/48/96 kHz, JEITA)

Signal to Noise Ratio:92 dB or more (LINE IN or MIC IN to LINE OUT Fs 44.1/48/96 kHz, JEITA)
Equivalent Input Noise-120 dBu or less

Compatibility
WindowsOS: XP, Vista, 7, 8, 8.1
CPU: Pentium 300 MHz or better
RAM: 128 MB or more
USB: 2.0 recommended
MacOS: OS X 10.2 to 10.9
CPU: Power PC, iMac, G3, G4, 266 MHz or more 
RAM: 64 MB or more
USB: 2.0 recommended

General
Operating Temperature:32 to 104°F (0 to 40°C)
Dimensions: (W × H × D)6.65 x 2.2 x 4.2" (169 x 55.2 x 106.5 mm), with top adapter attached
WeightWith Batteries: 1.37 lb (625 g)
Without Batteries: 1.16 lb (530 g)