Edirol R-4Pro - Manual (Page 99)

99
Main specifications
● Channels
4
● Signal Processing
Signal Processing AD/DA Conversion: 24 bits
Sampling Frequency: 44.1/48/88.2/96/192 kHz
● Data Types
(both Recording and Playback)
Format: BWF, WAV
Sample Size: 16/24 bits
Sampling Frequency: 44.1/48/88.2/96/192 kHz
* The sample size and sampling frequency can be combined in any
way.
● Media
Internal Hard Disk Drive (80 GB)
● Recording Time (Stereo, in hours)
* These recording times are approximate. Your results may vary.
* If more than one recorded file is created, the total recordable time
will be less than these times.
● Analog Inputs
Channel 1–4: XLR type (accepts phantom powered)
Internal Microphones (Stereo)
● Analog Outputs
Channel 1–4: Line out (RCA phono type)
Headphones: Stereo 1/4 inch phone type
● Digital Input/Output
XLR type (AES/EBU, conforms to IEC 60958-4)
● Input Impedance
Analog Input: 4 k ohms
● Nominal Input Level
Use the sensitivity knobs to select from the following (with
the input level knobs in mid-position)
-56, -50, -44, -38, -32, -26, -20, -14, -8, -2, +4 dBu
(input level knobs: negative infinity to +8 dB)
● Output Impedance
LINE Out: 950 ohms
Headphones: 10 ohms
● Output Level
LINE Out: -10 dBu (Fixed)
Headphones 40 mW + 40 mW
● Residual Noise Level
LINE Out: -90 dBu
(SENS Knob: +4 dBu, Input Level Knob: Min)
● Total Harmonic Distortion (THD+N)
0.01%
(SENS Knob: +4 dBu, Input Level Knob: Center)
● Recommended Load Impedance for
Headphones
32 ohms
● Frequency Response
20 Hz–40 kHz (0 – -3 dB)
● Phantom Power
48+/-4 V / 8 mA (Available 4 Channels simultaneously)
* Should be less than 25 mA in total
* 0 dBu = 0.775 Vrms
Recorder
44.1
kHz
48 kHz
88.2
kHz
96 kHz
192
kHz
16
bit 116 106 58 53 26
24
bit 77 70 38 35 17
Audio Input and Output
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