84
Main specifications
●
Channels
4
●
Signal Processing
AD/DA Conversion:
24 bits
Sampling Frequency:
44.1/48/96 kHz
●
Data Type
Format:
WAV
Sampling Frequency:
44.1/48/96 kHz
Bit Depth:
16/24 bits
●
Media
Internal Hard Disk Drive (40 GB)
CompactFlash (supports 32 MB–2 GB)
●
Recording Time
16 bit/44.1 kHz (Stereo):
58 hours
16 bit/48 kHz (Stereo):
53 hours
24 bit/48 kHz (Stereo):
35 hours
16 bit/96 kHz (Stereo):
17 hours
* 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.
●
Analog Inputs
Channel 1–4:
XLR type (phantom powered),
1/4 inch TRS phone type (balanced/unbalanced)
Internal Microphone (Stereo)
●
Analog Outputs
LINE Out:
1/4 inch phone type (L, R),
RCA phono type (L, R)
Headphones:
Stereo 1/4 inch phone type
●
Digital Input/Output
Coaxial type (conforms to IEC60958)
●
Input Impedance
4 k ohms
●
Nominal Input Level (Variable)
Line Level:
-33– +4 dBu
MIC Level:
-60– -23 dBu
●
Output Impedance
LINE Out:
950 ohms
Headphones:
10 ohms
●
Output Level:
LINE Out:
-10 dBV
Headphones:
40 mW + 40 mW
●
Limiter threshold level
-10 dB (relative to digital full-scale),
maximum compression ratio 1:3
●
Residual Noise Level
LINE Out:
-85 dBu
Digital Data:
-90 dBFS
(fs = 96 kHz, Input: 1 k ohms terminated,
Level Switch: MIC,
Input Level Knob: Min. Input: 4 channels simultaneously)
●
Total Harmonic Distortion (THD + N)
0.03 %
(fs = 96 kHz, Input: 1 k ohms terminated, Level Switch:
LINE, Input Level Knob: Min. Input: 4 channels
simultaneously, Band Width: 22 kHz)
●
Recommended Load Impedance for
Headphones
32 ohms
●
Frequency Response
10 Hz–40 kHz (0– -3 dB)
●
Phantom Power
48+/-2 V / 8 mA
Available 4 Channels simultaneously
(total of all channels must be 25 mA or less)
* 0 dBu = 0.775 Vrms
Recorder Part
Audio Input and Output Part
R-4_e.book 84 ページ ２００５年２月１０日 木曜日 午後３時３６分
