5 1 5 0

The Boss 640UI is an automotive in-dash CD receiver offered by Boss Audio.

Where to buy

Seller Price Seller Rating
Show more

nice colors that look great day or night

1 agrees

durable construction feels solid and reliable

1 agrees

reads from the SD card or USB drive quickly making everything available right away

1 agrees

lots of power to the speakers for loud output

1 agrees

control layout is simple and obvious, no real learning curve

1 agrees

installation process is very simple, good for entry-level installers to try

1 agrees

easy to navigate the menu, all laid out logically

1 agrees
  • Only 3 words are allowed.
  • Only 3 words are allowed.


The Boss 640UI is an automotive in-dash CD receiver offered by Boss Audio. It features a slide-down full detachable front panel which has a integrated USB port to enjoy media off USB devices.  There is also a SD/MMC card slot, rear aux input and is ready for full iPod control, with optional integration cable.  It is compatible with WMA/MP3/CD/CD-R/CD-RW formats and has an FM radio tuner with 30 presets. It outputs 80 watts to 4 channels and there are dual RCA outputs for rear and front, as well as a subwoofer output. To control the output sound, bass and treble are seperated and there are preset EQ response curves as well as balance and fader controls.  For easy use, there are illuminated control buttons and the full-color dot matrix display has dual color illumination and the unit ships with a wireless remote control.

  • ISO DIN mounting
  • Full control for iPod (when used with IPC40 Integration Cable, sold separately)
  • Motorized, slide-down full detachable front panel
  • 5 Volt preamp output
  • Built-in microphone
  • Oversized full-color dot-matrix display
  • Dual color illumination
  • Illuminated control buttons
  • PLL synthesized tuner
  • Switchable USA/Europe/Asia radio frequencies
  • RDS (Radio Data System)
  • 30 Station presets
  • USB port
  • SD/MMC card slot
  • WMA/MP3/CD/CD-R/CD-RW compatible
  • Encoding function from CD, FM radio, auxiliary line in, iPod
  • ESP (anti-skip mechanism)
  • Quartz digital clock
  • ID3-Tag compatible
  • Subwoofer output (BassMax)
  • 1-Bit D/A converter
  • 8 X oversampling
  • Preset EQ response curves
  • Separate bass and treble
  • Balance and fader controls
  • Dual (front and rear) RCA outputs
  • Loudness
  • Stereo/mono & local/distance switches
  • Wireless remote control
  • Output power: 80W x 4 channels
  • AUX Audio Input (Rear)
About Us