Edirol R4Pro Memory Recorder

Main Specifications :

R-4 Pro 4-Channel Portable Recorder and Wave Editor

Recorder
Channels 4
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
NOTE: 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 1/4 inch phone type x 1
Digital Input/Output AES/EBU XLR type x 1
Time Code In/Out BNC type x 2 (SMPTE LTC)
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
(Supports USB 1.1 / 2.0 mass storage device class)

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 battery LR6 (AA) type x 8, or Nickel Hydrogen battery (HR15/51) x 8
Power Consumption 1.2 A
Accessories USB cable
AC Adaptor with XLR 4 pins conversion cable
AC Cord
Owner's manual
Carrying Case (soft type)

Size and Weight
Width 254 mm
Depth 221.8 mm
Height 72.2 mm
Weight 1.7 kg

All specifications are subject to change without notice.