49
Appendix
(
English
)
Technical Specifications
Digital Audio System
System
Media recorder and player
Compatible Media
USB device (mass storage class), SDHC/SDXC Card (Class 4
or greater recommended, Class 10 or greater required for
Dual Recording)
Supported File Systems
FAT16, FAT32
Supported File Formats
MP3:
Sampling frequency:
44.1 kHz
Bit rate:
192, 256 kbps (recording); 64–320 kbps
and VBR (playback)
Format:
MPEG1 Audio Layer 3
File extension:
.mp3
WAV: Sampling
frequency:
44.1, 48 kHz
Bit depth:
16-bit (44.1 kHz), 24-bit (48 kHz)
Format:
Waveform Audio File Format
File extension:
.wav
Number of Channels
2 channels stereo
Audio Frequency Range
10 Hz – 20 kHz (±1.0 dB, recording; ±0.8 dB playback)
Signal-to-Noise Ratio
Recording:
> 95 dB
Playback:
> 95 dB
(1 kHz, 0 dB, A-weighted)
Channel Separation Recording:
> 80 dB
Playback:
> 90 dB
(1 kHz, 0 dB, A-weighted)
Wow and Flutter
< 0.001%
Distortion Recording:
< 0.008%
Playback:
< 0.006%
Total Harmonic Distortion
< 0.01% (1 kHz, 0 dB, A-weighted)
Inputs
Balanced XLR
Nominal Level:
+4 dBu ±1 dBu
Minimum Level:
-40 dBu
Maximum Level:
20 dBu ±1 dBu
Input Impedance:
18 k
Ω
Unbalanced RCA
Nominal Level:
-10 dBV (at full scale: -16 dB)
Minimum Input Level:
-19 dBV or higher
Input Impedance:
22 k
Ω
±10%
Содержание DN-300R
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