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Specifications
General points
4 Recording medium:
Built-in memory
DM-520: 4 GB
DM-420: 2 GB
microSD card (512 MB to 16 GB)
4 Recording format:
Linear PCM (Pulse Code Modulation)
(For DM-520)
MP3 (MPEG-1 Audio Layer3)
WMA (Windows Media Audio)
4 Input level:
[Mic Sense]:[Middle] - 60 dBv
4 Maximum working output:
320 mW (8 Ω speaker)
4 Maximum headphone output:
≤
_
150 mV (according to EN 50332-2)
4 Wide band characteristic
headphone output:
75 mV
≤
_
(according to EN 50332-2)
4 Speaker:
Built-in ø 23 mm round dynamic speaker
4
MIC
jack:
ø 3.5 mm mini-jack, impedance 2.2 kΩ
4
EAR
jack:
ø 3.5 mm mini-jack, impedance 8 Ω or
more
4 Input power requirement:
Batteries: AAA battery (LR03) or
Olympus Ni-MH rechargeable battery
External power supply: USB connecting
AC adapter(A514)
5 V
4 External dimensions:
110 mm × 38.9 mm × 16 mm
(without protrusions)
4 Weight:
84 g (including battery)
4 Operating temperature:
0°C - 42°C/ 32°F - 107.6°F
Overall frequency response
4 During recording or playback
mode:
Linear PCM format
Recording mode
Overall frequency
response
48 kHz 40 Hz to 23 kHz
44.1 kHz 40 Hz to 21 kHz
MP3 format
Recording mode
Overall frequency
response
320 kbps 40 Hz to 20 kHz
256 kbps 40 Hz to 20 kHz
192 kbps 40 Hz to 19 kHz
128 kbps 40 Hz to 17 kHz
WMA format
Recording mode
Overall frequency
response
ST XQ 40 Hz to 19 kHz
ST HQ 40 Hz to 16 kHz
ST SP 40 Hz to 9 kHz
HQ 40 Hz to 13 kHz
SP 40 Hz to 8 kHz
LP 40 Hz to 3 kHz
4 Built-in stereo microphone
(During recording mode):
DM-520: 70 Hz to 20 kHz
DM-420: 100 Hz to 15 kHz
• However, when recording by the MP3
format or the WMA format, the upper limit
value of the frequency response depends
on each recording mode (see above
diagram).
Specifications