Edirol R-4
Superior Sound and Extended Recording Time with 40GB Hard Disk Drive 4-Channel Portable Recorder for Professional Use.

The Edirol R-4 brings you a new generation of portable recording. Enjoy superb sound quality. Use the 40GB hard disk drive for extended recording. Record up to four channels at once. Edit waveforms on therecorder 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. 

•  4-Channel Recording
•  24-bit/96-kHz Resolution 
•  40GB Hard Disk Drive 
•  Wave Editing Function 
   

Edirol R-4 Details:

Extended Recording with 40GB Hard Drive
 
Equipped with a 40GB hard disk drive, the Edirol 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 Edirol R-4's 4 XLR/Phone combo jacks come with switchable phantom power and give you a choice of MONO, STEREO, STEREO X2, or 4CH recording. In addition, a digital input and output is 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 Nondirectional Stereo Microphones
 
The Edirol R-4's nondirectional, 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/actualitie at the beginning of a recording.

Five High-Quality Effects
 
The Edirol R-4 lets you tailor the sound during both recording and playback.

Edirol R-4's Built-In Effects:
3-Band EQ
Graphic EQ
Noise Gate
Enhancer
Comp & DeEsser

L Terminal for Linking a Digital Video Camera
 
The Edirol R-4's L terminal lets you connect a similarly equipped digital video camera to synchronize the camera start/stop while Edirol R-4 is recording and playback. 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 Edirol R-4
 
The Edirol 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.

Waveform Editing Functions:
Trim (Delete)
Divide (Split)
Combine (Append)
Merge (Bounce)

Index Any Point Instantly
 
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 Edirol 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 Edirol R-4 as a 40GB storage device. Edit R-4 filescan be 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.

Compact Flash Slot
 
The compact flash slot makes it easy to read or write recorded files. You can use compact flash memory to give data to colleagues or to transfer data to equipment not equipped with an USB interface.

2-Way Power Supply
 
The Edirol R-4 runs on eight AA batteries or with the AC adaptor.
 
  Input Connectors  Channel 1/2 3/4: XLR/PHONE type (phantom powered: XLR only)
 
 
  Impedance  4 k Ohms or more
 
  Frequency Response 

• 44.1kHz: 20 Hz to 20 kHz (0 dB/-2 dB)
• 48kHz: 20 Hz to 22 kHz (0 dB/-2 dB)
• 96kHz: 20 Hz to 40 kHz (0 dB/-3 dB) 
   

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 inch phone type

Impedance  L, R: 950 Ohms, PHONES: 10 Ohms
 
Output Level 

• L, R: -7.8dBu (-10dBV),
• PHONES: 30mW + 30mW (32 Ohms load)
  
  * 0 dBu = 0.775 V rms 
   

Digital Input/Output Connectors

• Digital output jacks Coaxial type (conform to IEC60958)
• Digital intput jacks Coaxial type (conform to IEC60958) 

Other connectors

• USB connector B Type
• L-connector MIni-Miniature phone type *Recieve only.
• Compact Flash Card slot
   

Effect Unit 

• Tone Control: Shelving EQ, Graphic EQ, Enhancer, Noise Reducer, Compressor * 96kHz : Invalid
• 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 SwitchPhantom Switch (CH1/2, CH3/4)
• Limiter Switch
• 128x64 Graphic LCD

Signal Processing

• Bit depth
• AD/DA conversion: 24 bits
• Headroom: 12 dB

Sample Rate

• AD/DA conversion: 44.1 / 48 /96 kHz
• Digital output: 44.1 / 48 /96 kHz
• Digital input: 32 kHz to 96 kHz (convert to internal sample rate) 

HARD DISK DRIVE CAPACITY:  40 GBytes

RECORDING TIME

• 16 bits/44.1kHz: 58 hours
• 16 bits/48kHz: 53 hours
• 24 bits/96kHz: 17 hours

Power Supply:  DC 9 V (AC adaptor), AA battery x 8

Edirol R-4 Accessories:

• USB Cable
• AC adaptor(PSB-1U)
• AC cord
• Owner's manual
• Carrying case

Edirol R-4 Size and Weight:

•   Width  254 mm 10 inches 
   
•   Depth  222 mm 8-3/4 inches 
   
•   Height  72 mm 2-7/8 inches 
   
•   Weight  1.7 kg 3 lbs. 12 oz.