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Extended Recording with 40GB Hard Disk Drive
Equipped with a 40GB hard disk drive, the R-4 can record up to 17 hours at maximum sound quality or up to 58 hours at CD quality.
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, or 96 kHz. 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
Built into the analog stage, the Limiter helps deliver a stable and reliable recording free of clipped noise from sudden input surges.
Built-In omni-directional Stereo Microphones
The R-4'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 lets you tailor the sound during both recording and playback.
L Terminal for Linking a Digital Video Camera
The R-4's L terminal lets you connect a similarly equipped digital video camera to synchronize the camera start/stop while R-4 is recording. Counting the camera's two channels, this configuration gives you a total of six audio channels - a wealth of audio data to get creative with.
Waveform Editing Using Only the R-4
The R-4 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'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 as a 40GB storage device. Edit R-4 files directly from DAWs and other applications.
Advanced Linking with the EDIROL DV-7DL
A USB cable is all you need to connect directly to an EDIROL DV-7DL Video Editor and exchange files.
CompactFlash Slot
The CompactFlash slot makes it easy to read or write recorded files. You can use CompactFlash memory to give data to colleagues or to transfer data to equipment not equipped with a USB interface.
R4_CASE2-Way Power Supply
The R-4 runs on eight AA batteries or with the AC adaptor.
Digital Audio Input/Output
Exchange data with other digital equipment while maintaining fidelity with the coaxial digital audio in/out.
Soft Carrying Case
The R-4 comes with a soft carrying case with a shoulder strap for safe, comfortable use in the field.
R-4: 4-channel Portable Recorder and Wave EditorRecorder PartChannels4Signal ProcessingAD/DA Conversion: 24 bits
Sampling Frequency: 44.1/48/96 kHz
Data Type Format: WAV
Sampling Frequency: 44.1/48/96 kHz
Bit Depth: 16/24 bits
Media Internal Hard Disk Drive (40 GB)
Compact Flash (supports 32 MB to 2 GB)
Recording time16 bit/44.1 kHz (Stereo): 58 hours
16 bit/48 kHz (Stereo): 53 hours
24 bit/48 kHz (Stereo): 35 hours
16 bit/96 kHz (Stereo): 17 hours
* These recording times are approximate. Your actual results may vary somewhat.
* If more than one recorded file exists, the total recordable time will be less than these.
Audio Input and Output PartAnalog Inputs
Channel 1/2/3/4: XLR type (phantom powered), 1/4 inch TRS phone type (balanced/unbalanced)
Internal Microphone (Stereo)Analog Outputs
LINE Out: 1/4 inch phone type (L, R), RCA phono type (L, R)
Headphones: Stereo 1/4 inch phone type
Digital Input/Output
Coaxial type (conforms to IEC60958)
Input Impedance4 k ohms
Nominal Input Level (Variable)Line Level: -33-- +4 dBu
MIC Level: -60-- -23 dBu
Output Impedance
LINE Out: 950 ohms
Headphones: 10 ohms
Output Level
LINE Out: -10 dBV
Headphones 40 mW + 40 mW
Residual Noise Level
LINE Out: -85 dBu
Digital Data: -90 dBFS
(fs = 96 kHz, Input: 1 k ohms terminated, Level Switch: MIC, Input Level Knob: Min. Input: 4 channels simultaneously)Total Harmonic Distortion (THD + N)0.03 %
(fs = 96 kHz, Input: 1 k ohms terminated, Level Switch: LINE, Input Level Knob: Min. Input: 4 channels simultaneously, Band Width: 22 kHz)Recommended Load Impedance for Headphones32 ohms
Frequency Response
10 Hz to 40 kHz (0 to -3 dB)
Phantom Power 48+/-2 V / 8 mA
(Available 4 Channels simultaneously)
Other Input/Output Part
USB Interface
B Type Connector
Supports USB 1.1 and 2.0 Mass Storage Device Class.
CompactFlash Slot Supports Type I only.
L Connector Receiving only.
Supports Start/Stop Sync only.
Not Supports Timecode.
Effect Unit Part
Effect Type 3-BAND SHELVING EQ, 6-BAND GRAPHIC EQ, NOISE GATE, ENHANCER, COMPRESSOR AND DE-ESSER, NO EFFECT
Available to either recording or playing.
Not available to recording in 96 kHz sampling frequency.
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 SupplyAC Adaptor (PSB-1U), Alkaline dry battery LR6 (AA) type x 8, or Nickel Hydrogen battery (HR15/51) x 8
Power Consumption 1.2 A
Accessories
Owner's Manual
AC Adaptor (PSB-1U)
USB cable
Carrying Case
Size and Weight
Width 240 mm / 9-1/2 inches
Depth 217 mm / 8-9/16 inches
Height 77 mm / 3-1/16 inches
Weight 1.7 kg / 3 lbs. 12 oz.
*The specifications are subject to change without notice.
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