Edirol R-4

The Edirol R-4 brings you a new generation of portable recording. Enjoy the super sound quality. Use the 40GB harddisk drive for extended recording. Record up to four channels at once and edit waveforms on the recorder itself. All this plus a compact size and light weight that assure outstanding mobility in the field. The Edirol R-4 gear up for the new generation of portable recording.

Equipped with a 40GB harddisk drive, the R-4 can record up to 17 hours at maximum sound quality or up to 58 hours at CD quality.

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.

The four 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.

Features:

On-Board Limiter: Built into the analogue stage, the Limiter helps deliver a stable and reliable recording free of clipped noise from sudden input surges.
Built-In Nondirectional 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.
3-Band EQ: 3-band parametric EQ; allows sharp equalizing with high/low shelving and mid peaking
- Graphic EQ: 6-point frequency band equalizing – ideal for recording
- Noise Gate: Minimizes noise during silences, cuts low-frequency noise
- Enhancer: Clearly defines and enhances sounds – good for dialogue
- Comp & DeEsser: Cuts hissing, smoothes the sound, makes the sound level uniform
* Only one effect can be used at a time. Effect ON/OFF and parameters can be set for each track.
* Effects are not available in 96kHz operation.
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.
2-Way Power Supply: The R-4 runs on eight AA batteries or with the AC adaptor

Technical Data:

Connectors
Channel 1/2 3/4: XLR/PHONE type
(Phantom powered: XLR only)
Impedance
4 k Ohms or more
Frequency Response
- 44.1kHZ: 20Hz to 20kHz (0 dB/-2dB)
- 48kHz: 20Hz to 22kHz (0 dB/-2dB)
- 96kHz: 20Hz to 40kHz (0dB/-3dB)
Nominal Input Level
Channel 1,2,3,4:
-60 to +4 dBu (Variable)
Output
- Connectors:
- RCA Phono type (L,R)
- Headphones Jack Stereo: 1/4" Phone Type
Impedance L,R: 950 Ohms, PHONES: 10 Ohms
Output Level
- L,R: -7.8 dBu (-10 dBV)
- PHONES: 30mW +30mW (32 Ohms load)
Digital Input/Output
- Connectors
- Digital Output Jack: Coaxial Type(conforms to IEC60958)
- Digital Input Jack: Coaxial Type (conforms to IEC60958)
Other Connectors
- USB Connector B Type
- L-Connector Mini-Miniature Phone Type *Receive Only
- Card Slot: CompactFlash
Effect Unit
- Shelving EQ
- Graphic EQ
- Enhancer
- Noise Reducer
- Compressor
*96kHz: Invalid
Control
- Controls
- Input Gain Knobs (CH1, CH2, CH3, CH4)
- Input Level Switch (CH1/2, LINE, MIC)
- Input Level Switch (CH3/4, LINE MIC)
- Monitor Knob
- Jog Shuttle
- Transport Buttons: PREV, NEXT, STOP,PAUSE, PLAY, REC
- Function Buttons:
- Hold Switch
- Phantom Switch (CH1/2, CH3/4)
- Limiter Switch
Display 128 x 64 Graphic LCD
Signal Processing
- AD/DA Conversion: 24-bit
- Headroom: 12 dB
Sample Rate AD/DA Conversion 44.1/48/96kHz
Digital Output 44.1/48/96kHz
Digital Input 32kHz to 96kHz
(Convert to internal sample rate)
Hard Disk Capacity 40GB
Recording Time
- 16-bit/44.1kHz: 58 hours
- 16-bit/48kHz: 53 hours
- 24-bit/96kHz: 17 hours
Power Supply
- DC 9V(AC Adapter)
- AA Battery x 8
Dimensions 254(W) x 221.8(D) x 72.2(H)mm
Weight 1.7kg
Accessories
- USB Cable
- AC Adapter (PSB-1U)
- AC Cord
- Owner’s Manual
- Carry Case