Specifications

48
Portable 4-Channel Recorder with Superior Sound Quality and
SMPTE Time Code sync function
R-4Pro
4-Channel Portable Recorder and Wave Editor
Up to 24-bit 192 kHz uncompressed linear PCM recording
Simultaneous 4-Channel Recording/Individual monitoring of 4
channels
AES/EBU Input/Output
SMPTE Time Code In/Out for Video Sync
80 GB Hard Disk Drive
Pre-recoding function
Waveform editing using only the R-4Pro
Built-in high-quality effects
Unit: mm
FIELD RECORDERS
SPECIFICATIONS
R-4Pro
Channels
4
Digital Input/Output
XLR type (AES/EBU, conforms to IEC 60958-4)
Input Impedance
Analog Input: 4 k-ohms
Frequency Response
20 Hz to 40 kHz (0 to -3 dB)
Output Impedance
LINE Out: 950-ohms, Headphones: 10-ohms
Output Level
LINE Out: -10 dBu, Headphones: 40 mW + 40 mW
Residual Noise Level
LINE Out: -90 dBu, (SENS Knob: +4 dBu, Input Level Knob: Min)
Recording Media
Internal Hard Disk Drive (80 GB)
Signal Processing
AD/DA Conversion: 24-bits
Sampling Frequency: 44.1/48/88.2/96/192 kHz
* Limited to Stereo x 1 when 192 kHz
Data Type
Format: BWF, WAV, Bit Depth: 16/24-bits,
Sampling Frequency: 44.1/48/88.2/96/192 kHz
Analog Inputs
Channel 1 to 4: XLR type (Phantom powered)
Internal Microphones (Stereo)
Total Harmonic
Distortion (THD + N)
0.01 % (SENS Knob: +4 dBu, Input Level Knob: Center)
Recommended Load
Impedance for Headphones
32-ohms
Analog Outputs
LINE Out: RCA Pin type (Channel 1 to 4)
Headphones: Stereo 1/4 inch phone type
Phantom Power
48+/-4 V/8 mA (Available 4 Channels simultaneously)
* Should be less than 25 mA in total
SMPTE Timecode
connectors
BNC Connectors (Conforms SMPTE 12M-1999)
Nominal Input Level
(Input Level Knob: Center)
(Variable) -56, -50, -44, -38, -32, -26, -20, -14, -8, -2, +4 dBu
(Input Level Knob: -∞ to +8 dB)
USB Interface
A Type Connector (For USB Storage device)
Supports USB 1.1 and 2.0 Mass Storage Device Class.
B Type Connector (For Computer)
Supports USB 1.1 and 2.0 Mass Storage Device Class.
Power Supply
AC Adaptor (PSB-1U), Alkaline dry battery LR6 (AA) type x 8,
or Nickel Metal Hydride battery (HR15/51) x 8
External Power Supply: 4-pin XLR type (9 to 16 V)
Current Draw
2.0 A
Dimensions
240 (W) x 217 (D) x 77 (H) mm
9-1/2 (W) x 8-9/16 (D) x 3-1/16 (H) inches
Weight
1.7 kg, 3 lbs. 12 oz.
Effect Unit Part
Effect Type: 3-BAND SHELVING EQ, 6-BAND GRAPHIC EQ,
NOISE GATE, ENHANCER, COMPRESSOR AND DE-ESSER,
MS MIC MIXING, NO EFFECT
* Available to either recording or playing
* Not available to recording in 192 kHz sampling frequency.
OutputInput (XLR, Phantom power)
USB Storage USB
Digital In/Out (XLR) Time Code Head Phones
77.1
217.4
240
USB 2.0
for Windows
®
7
/
Windows Vista
®
/
Windows
®
XP/2000
for Mac OS X
Right Side Panel
Instant backup via USB2.0
Left Side Panel
Block Diagram
Recording Time (Stereo) Unit: hour
INPUT2
/
R
INPUT1
/
L
HDD
EDIT
D
/
A
INPUT4
/
R
INPUT3
/
L
DIGITAL AUDIO IN
A
/
D
A
/
D
A
/
D
A
/
D
L
R
LINE OUT
1
/
L
2
/
R
USB 2.0
/
1.1
Data Transfer to PC
DIGITAL AUDIO OUT
L
R
Built-in MIC
DSP
EFFECTS
GAIN
GAIN
GAIN
GAIN
Data Back Up
To PC
To USB
Storage
Device
TIMECODE OUT
Storing TC at REC start
/
Sync PLAY to TC
Sending TC at PLAYBACK
TIMECODE IN
USB 2.0
/
1.1
LEVEL
LIMITER
LIMITER
LIMITER
A
/
D
A
/
D
L
R
D
/
A
PHONES
L
R
Built-in
SPEAKER
MONITOR
LEVEL
3
/
L
4
/
R
D
/
A
D
/
A
LEVEL
LEVEL
LEVEL
LIMITER
Sample Size
16-bit
24-bit
Sampling Frequency
88.2 kHz 96 kHz 192 kHz
* 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.
48 kHz44.1 kHz
58 53 26106116
38 35 177077
Built-in stereo microphones and monitor speakers
Three types of power – AC Adaptor, AA Battery, External Battery
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