Specifications – Sony NW-E407 User Manual
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Sampling frequency
ATRAC3, ATRAC3plus, MP3: 44.1 kHz
Audio compression technology
Adaptive Transform Acoustic Coding3 (ATRAC3)
Adaptive Transform Acoustic Coding3plus
(ATRAC3plus)
MPEG1 Audio Layer-3 (MP3): 32 to 320 kbps,
variable bit rate-compliant
Frequency response
20 to 20,000 Hz (single signal measurement)
Interface
Headphone: Stereo mini
USB
Signal-to-noise ratio (S/N)
80 dB or more (excluding ATRAC3 66 kbps)
Dynamic range
85 dB or more (excluding ATRAC3 66 kbps)
Operating temperature
5˚C to 35˚C (67˚F to 95˚F)
Power source
• Built-in rechargeable lithium-ion battery
• USB power (from a computer through supplied
USB cable)
Battery life (continuous
playback)*
ATRAC3 format: Approximately 50 hours
(Playback at 105 kbps)
ATRAC3plus format: Approximately 45 hours
(Playback at 48 kbps)
MP3 format: Approximately 40 hours
(Playback at 128 kbps)
* This is when the power save setting is normal
(page 35). The battery duration will vary
depending on temperature and usage.
Specifications
Maximum recording time (Approx.)
ATRAC3plus
2 hr. 10 min. (256 kbps)
8 hr. 40 min. (64 kbps)
11 hr. 40 min. (48 kbps)
ATRAC3
4 hr. 10 min. (132 kbps)
5 hr. 20 min. (105 kbps)
8 hr. 30 min. (66 kbps)
NW-E403
ATRAC3plus
4 hr. 20 min. (256 kbps)
17 hr. 30 min. (64 kbps)
23 hr. 30 min. (48 kbps)
ATRAC3
8 hr. 30 min. (132 kbps)
10 hr. 40 min. (105 kbps)
17 hr. 00 min. (66 kbps)
NW-E405
MP3
2 hr. 10 min. (256 kbps)
4 hr. 20 min. (128 kbps)
MP3
4 hr. 20 min. (256 kbps)
8 hr. 50 min. (128 kbps)
ATRAC3plus
8 hr. 50 min. (256 kbps)
35 hr. 00 min. (64 kbps)
47 hr. 00 min. (48 kbps)
ATRAC3
17 hr. 00 min. (132 kbps)
21 hr. 40 min. (105 kbps)
34 hr. 10 min. (66 kbps)
NW-E407
MP3
8 hr. 50 min. (256 kbps)
17 hr. 40 min. (128 kbps)