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Otari Corporation . http://www.otari.com

MR-30 Professional MiniDisc Recorder

The Otari MR-30 is the ideal MiniDisc Recorder for the rigors of the professional studio environment. Professional Inputs an Outputs and versatile machine control capabilities tailors the MR-30 toward audio post production, live sound recording, broadcast operations and on-line finishing applications.

As a random access device, the MR-30 can cue a radio spot virtually instantaneously and edit recordings with precision. The easy-to-use interface provides quick access to all of the MR-30's features without the need to scroll through hidden menus.

Recording with the MR-30 is easy and can be achieved manually or automatically using the recording start function. This feature senses the audio input level and initiates record once a preprogrammed threshold has been reached. Track numbers can be automatically incremented by sensing the no-signal sections between programs. An optional sample rate converter allows recording input sample rates from 32 to 48 kHz.

Program playback can specify the playback order of up to 25 tracks. Either single or continuous mode can be selected, and remembered, even if the main power to the unit is lost. Instantaneous playback stores up to 20 tracks for immediate playback (within 100 ms). The signal level for detecting the precise audio start point can be adjusted and changed anytime.

MR-30 Highlights
 
Maximum 74 minutes stereo, or 148 minutes monaural recording into a single, low cost, MiniDisc
 
Flexible I/O: balanced XLR and unbalanced RCA analog I/O and both AES/EBU and SPDIF digital I/O
 
Shuttle/jog wheel
 
Powerful editing: erase, divide, combine, move insert and undo/redo
 
Varispeed control (±9.9%) can be written to the disc
 
Three playback modes: single, continuous, and between A-B
 
Automatic cueing
 
Automatic and manual UTOC writing
 
Serial and parallel control interface
 

MR-30 Front Panel

MR-30.jpg (46406 bytes)

MR-30 Specifications

GENERAL
Type MD (MiniDisc) Recorder
Usable Disc Pre-mastered MD, Recordable MD
Audio Channels 2 Channels (Stereo), 1 Channel (Monaural)
Recording/Playback Time 74 Minutes (Stereo), 148 Minutes (Monaural)
Sampling Frequency 44.1 kHz, 32 kHz/48 kHz I/O with optional sample rate converter
Number of Quantization Bits A/D Converter 16-bit
D/A Converter 18-bit
Pitch Control (varispeed) MAX. ±9.9%
Signal Start Time 1 frame (1/85 seconds)
Frame Search Accuracy Max. 0.01 seconds
   
2 CHANNEL, ANALOG INPUT/OUTPUT
ANALOG INPUT  
Format Active Balanced, XLR
Input Level +18 dB
Input Impedence 10 k Ohms
Format Unbalanced, RCA Pin Type
Input Level 1.7 Vrms
Input Impedence 47 k Ohms
   
ANALOG OUTPUT  
Format Active Balanced, XLR
Output Level +18 dB (+22 dB -20 dB variable)
Output Impedence 650 k Ohms
Format Unbalanced, RCA Pin Type
Output Level 1.7 Vrms
Output Impedence 10 k Ohms
   
2 CHANNEL, DIGITAL INPUT/OUTPUT
DIGITAL INPUT  
Format Active Balanced, AES/EBU, XLR
Input Level 3-10 Vp-p
Input Impedence 10 k Ohms
Format Unbalanced, SPDIF, RCA Pin Type
Input Level 0.3-1.0 Vp-p
Input Impedence 75 Ohms
   
DIGITAL OUTPUT  
Format Active Balanced, AES/EBU, XLR Type
Output Level 3 Vp-p
Output Impedence 110 Ohms
Format Unbalanced, SPDIF, RCA Pin Type
Output Level 0.5 Vp-p
Output Impedence 75 Ohms
   
HEADPHONE OUTPUT  
Output Level 20 mW
Output Impedence 30-40 Ohms
Connector 1/4" Stereo Phone Jack
   
ELECTRONICS
PLAYBACK  
Frequency Response 20 Hz - 20 kHz (+1.0 dB)
S/N Ratio min. 92 dB (1 kHz, 0 dB, A-Wtd.)
Channel Separation min. 86 dB (1 kHz, 0 dB, A-Wtd.)
THD (total harmonic distortion) max. 0.012% (1 kHz, 0 dB, A-Wtd.)
   
RECORD  
Frequency Response 20 Hz - 20 kHz (+1.0 dB)
S/N Ratio min. 84 dB (1 kHz, 0 dB, A-Wtd.)
Channel Separation min. 80 dB (1 kHz, 0 dB, A-Wtd.)
THD (total harmonic distortion) max. 0.02% (1 kHz, 0 dB, A-Wtd.)
Wow & Flutter Less than measuring limit (EIAJ)
   
PHYSICAL
Power Requirements AC 100V-240V ±10%, 50/60 Hz
Power Consumption 29 W
Dimensions Rack Mount (3U) 19" (W) x 5.2" (H) x 10.9" (D)
(without Feet, Knobs, and Connectors)
Weight 6.2kg, 15.2 Lbs.
   

Specifications are subject to change without notice or obligation. © 1998 Otari Corporation All Rights Reserved.
Last Revised: Wednesday, 05 August 1998 09:20 AM -0700

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Otari Corporation: 800/877-0577  fax: 650/341-7200  e-mail: sales@otari.com