Details
Master or Slave Sync with SMPTE Time Code
The R-4 Pro accepts SMPTE time code which enables it to slave to video cameras or VTRs. Four channels of high quality audio can be fully synchronized with video. In addition, the R-4 Pro can also act as the master, sending out time code to slave devices.
AES/EBU Input/Output
The R-4 Pro is equipped with XLR style AES/EBU digital Input and Output.
Instant Backup via USB 2.0
The USB host terminal of R-4 Pro enables high speed and instant backup of recorded data to affordable and easy obtainable media like Flash Memory, Memory Cards via card reader or HDD storage. Easy and high speed duplication of recorded data improves production workflow across multiple locations.
DC Input for External Battery Power Supply
The R-4 Pro is equipped with a 4-pin XLR type battery power input. This enables power supplies from industry standard battery manufacturers for video cameras such as Anton-Bauer, etc. Additional flexibility in power options include AA type battery power or AC power (via adapter).
Individual Monitoring of 4 channels
Individual monitoring of all channels is enabled via the four analog outputs. This allows precise monitoring of all recorded audio.
Extended Recording with 80GB Hard Disk Drive
Equipped with a 80GB hard disk drive, the R-4 Pro can record a stereo audio file for approximately116 hours at 16bit/44.1kHz/ 106 hours at 16bit/48kHz, 70 hours at 24bit/48kHz, 34 hours at 16bit/96kHz, and 30 hours at 24bit/96kHz.
Superior 24-bit/96-kHz Linear Recording
Totally uncompressed recording assures outstanding sound quality. Choose 16-bit or 24-bit quantization and a sampling rate of 44.1 kHz, 48 kHz, 88.2kHz, 96 kHz or 192kHz. Save data as WAV files.
Simultaneous 4-Channel Recording
The 4 XLR/Phone combo jacks come with switchable phantom power and give you a choice of MONO, STEREO, STEREO X2, or 4CH recording. Digital input/output is also provided.
Four-channel recording gives you exceptional flexibility. For example, you can use mics to capture the ambience of a performance hall while using line input to record the performance itself. Or you can record at several different level settings simultaneously.
On-Board Limiter
The built-in Limiter helps deliver a stable and reliable recording free of clipped noise from sudden input surges.
Built-In Nondirectional Stereo Microphones
The R-4 Pro's omnidirectional, back electret condenser microphones offer superb transient characteristics and vibration resistance.
Pre-Recording Function
When the REC button is pressed, the current material is appended to a buffer that contains recorded material from a few seconds earlier. This helps prevent missed recording opportunities or sound bites at the beginning of a recording.
Five High-Quality Effects
The R-4 Pro lets you tailor the sound during both recording and playback.
Waveform Editing Using Only the R-4 Pro
The R-4 Pro is all you need to edit waveforms. Just watch the waveform on the LCD as you edit. Scrubbing playback with the shuttle dial lets you set the edit points precisely by sound.
Index Any Point Instantly
Press the mark button anytime during recording or playback to mark that point for easy, instant indexing later. With the A-B repeat function you can set two points and repeatedly play back the material between them.
Easy Playback with the Jog Dial
Use the jog dial to fast-forward or rewind at any of seven speed levels.
Built-In Stereo Speakers
The R-4 Pro's built-in speakers make it easy to monitor recorded sound without headphones.
USB 2.0 Terminal Provides a High-Speed Computer Data Link
The USB 2.0 high-speed mode transfers data about 20 times faster than DAT. You can also use the R-4 Pro as a 80GB storage device. Edit R-4 Pro files directly from DAWs and other applications.
Soft Carrying Case
The R-4 Pro comes with a soft carrying case with a shoulder strap for safe, comfortable use in the field.
SPECIFICATIONS
Recorder
Signal Processing
- AD/DA Conversion: 24 bits
- Sampling Frequency: 44.1/48/88.2/96/192 kHz
Data Type
- Format: WAV
- Sampling Frequency: 44.1/48/88.2/96/192 kHz
- Bit Depth: 16/24 bits
Media
- Internal Hard Disk Drive (80 GB)
Recording time
- 16 bit/44.1 kHz (Stereo): 116 hours
- 16 bit/48 kHz (Stereo): 106 hours
- 24 bit/48 kHz (Stereo): 70 hours
- 24 bit/88.2kHz (Stereo): 38 hours
- 16 bit/96 kHz (Stereo): 53 hours
- 24 bit/96 kHz (Stereo): 35 hours
- 24 bit/192kHz (Stereo): 17 hours
* These recording times are approximate. Actual results may vary.
* If more than one recorded file exists, the total recordable time will be less than these.
Audio Input and Output
Analog Inputs
XLR type x 4 + Built in stereo microphones
• Residual Noise Level: LINE Out: -90 dBu
(SENS Knob: +4 dBu, Input Level Knob: Min)
• S/N ratio: 100 dB (max signal level is 10dBu)
• Total Harmonic Distortion (THD + N): 0.01 %
(SENS Knob: +4 dBu, Input Level Knob: Center)
• Frequency Response: 20 Hz - 40 kHz (0 - -3 dB)
Analog Outputs
- RCA type x 4 + Built in stereo speakers
Headphones
Digital Input/Output
Time Code In/Out
Frame Rates
- 23.976, 24, 25, 29.97, 29.97D, 30, 30D
Phantom Power
48+/-2 V / 8 mA (Available 4 Channels simultaneously)
Other Input/Output
USB Interface
- USB Ports A type x 1 + B type x 1
Effect Unit
Effect Type
- 3-Bands Shelving EQ, 6-Bands Graphic EQ, Noise Gate, Enhancer, Compressor and De-esser
Available to either recording or playing.
Not available to recording in 96 kHz sampling frequency.
Control
Control
- Power Switch
- Hold Switch
- Input Gain Knobs: CH1--CH4
- Monitor Level knob
- Input Level Switches: CH1/2, CH3/4 (LINE/MIC Level)
- Phantom Power Switches: CH1/2, CH3/4
- Limiter Switch
- Scrub (Value)/Shuttle Dial
- Transport Buttons: PREV (REW), NEXT (FWD), STOP, PLAY/PAUSE, REC
- Marker Buttons: CLEAR, PREV, NEXT, MARK
- Function Buttons: WAVE EDIT, EFFECTS, SYSTEM
- A-B Repeat Button
- Display Button
Others
Display
- 128 x 64 dots Graphic LCD (backlit LCD)
Power Supply
- AC Adaptor (PSB-1U) or Alkaline dry battery LR6 (AA) type x 8, or Nickel Hydrogen battery (HR15/51) x 8 or 4-pin XLR powered external battery systems
Power Consumption
Accessories
- USB cable
- AC Adaptor with XLR 4 pins conversion cable
- AC Cord
- Owner's manual
- Carrying Case (soft type)