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
USB Yes
Headphone Jack Yes
Line Out Yes
Microphone input Yes
USB Host Adapter Yes
Firewire No
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
BMP Yes
JPG Yes
PNG Yes
GIF No
Supported Audio Formats
MP3 Yes
WMA Yes
WAV Yes
Audible No
OGG Vorbis Yes
Apple Lossless No
AAC No
AIFF No
WMA Lossless No
ASF Yes
FLAC Yes
Included Software
Rhapsody No
Itunes No
Included Software
  • Emusic.com
  • Drivers
  • JetAudio VX
  • JetShell Pro
Napster No

Performance

Performance
Signal-to-Noise Ratio, Average (dB) 71.0
Crosstalk, Average (dB) -50.0
Total Harmonic Distortion and Noise, Average (%) 0.06
Maximum Usable Output Level, Average (dBV) -2.1
Frequency Response Deviation, Average (dB) 3.9