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CDR 310

The Marantz CDR-310 is a 2-channel portable CD-R field recorder featuring MP3 and MPEG compressed or uncompressed WAV and AIFF recording in either stereo or mono modes. The simplified, intuitive design allows for use in government agencies, law enforcement, boardroom meeting documentation and broadcast applications.

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Lightweight and portable CD recorder with CD-DA/WAV/MP3 or AIFF compressed/uncompressed recording
Long-term recording in uncompressed and MP3 formats
Internal 1" 4GB hard drive stores audio before burning to CD
Burns audio or data CD-R, records up to 20 hours on 1 CD (MPEG Mono); burns audio discs for playback on standard CD players, data discs for transfer to computer or archival applications
Simplified operation with one-touch record feature; Pre-record mode enables active recording for up to 10 seconds when unit is stopped
Background Record Mode captures audio as on-going backup when unit is in pause mode; Silent Skip recording feature
XLR microphone inputs with 48V phantom power for use with condenser microphones
Individual microphone level attenuators and built-in condenser microphone; built-in speaker and headphone output with level control
S/PDIF digital I/O with CD-standard 16-bit/44.1 resolution
AA alkaline, NiCad/NiMH rechargeable battery operation with 4 hours of battery life


Type2-channel Portable CD-R/MP3 Digital Recorder
Recording/Reading MethodsInternal HD, CD-R/RW
Recording Bit Rate16-bit(AIFF/PCM)
128 kbps(MPEG Stereo)
64 kbps(MPEG Mono)
Sampling Frequency44.1 kHz
Number of Channels2
Frequency Response20Hz - 20kHz
Signal-to-Noise RatioPlayback: 85dB
Dynamic RangeAnalog input: 80dB
Playback: 85dB
Total Harmonic Distortion (THD)0.05%
Inputs2 x XLR Female Mic In
2 x RCA Phono Line In
1 x Coaxial SPDIF Digital In
1 x 2.5mm Remote 1 In
1 x 1/8" Mini Remote 2 In
Output2 x RCA Phono Line Out
1 x Coaxial SPDIF Digital Out
1 x 1/4" TRS Headphone Out
Headphone OutputYes, 1/4" Stereo Phone
Dimensions (WxDxH)9.6 x 2.2 x 7.2" (244 x 85 x 182mm)
Weight2.8 lbs (1.3kg)
SpecialtiesMP3 and CD-R Recording and Playback
Background Record Mode
Standard AA or NiMH/NiCAD Rechargeable Battery Operation

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