At A Glance

The A20 is an impressive audio and video player, with a big 4-inch screen. But it's expensive and a little heavy.

The Specs

Display
Display type Color
Ports and Connections
Microphone input Yes
Firewire No
Headphone Jack Yes
USB Host Adapter Yes
Line Out Yes
USB Yes
Supported Video Formats
H.264 Yes
DivX4 Yes
DivX5 Yes
mpeg1 Yes
mpeg2 No
MPEG4
  • Yes
  • Yes
XviD Yes
wmv Yes
Motion JPEG No
Supported Image Formats
JPG Yes
PNG Yes
BMP Yes
GIF No
Supported Audio Formats
WMA Lossless No
ASF Yes
OGG Vorbis Yes
AAC No
MP3 Yes
FLAC Yes
WMA Yes
WAV Yes
Audible No
Apple Lossless No
AIFF No
Included Software
Itunes No
Included Software
  • Emusic.com
  • Drivers
  • JetAudio VX
  • JetShell Pro
Napster No
Rhapsody No

Performance

Performance
Maximum Usable Output Level, Average (dBV) -2.1
Signal-to-Noise Ratio, Average (dB) 71
Total Harmonic Distortion and Noise, Average (%) 0.06
Frequency Response Deviation, Average (dB) 3.9
Crosstalk, Average (dB) -50