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Boss 638B

CD/MP3/WMA Player with Remote and Built-in Bluetooth for Wireless Phone Connection

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Specials with this product

  • Free Installation Accessories!details
  • CD/MP3/WMA Player with Remote
  • ISO DIN mounting
  • Fully detachable front panel
  • 5 Volt preamp output
  • Bluetooth system
  • Oversized, active black mask display
  • Illuminated control buttons
  • PLL synthesized tuner
  • 30 Station presets
  • USB port
  • SD/MMC card port
  • Quartz digital clock
  • CD mute function
  • Track repeat
  • Intro scan
  • 1 Bit D/A converter
  • 8X oversampling
  • MP3/CD-R/CD-RW compatible
  • ID3-tag display
  • Aux/mobile video input
  • Subwoofer output (BassMax)
  • ESP anti-skip mechanism
  • 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: 80 watts x 4 chan. Peak
  • 1-year Manufacturer's warranty
Product History:
Boss 745BA thumbnail
(newest, current model)
** CLOSEOUT!! ** Boss 638BA thumbnail
(previous model, replaced by Boss 745BA)
Boss 638B thumbnail
(previous model, replaced by ** CLOSEOUT!! ** Boss 638BA)
In-Dash Receiver Specifications
Receiver SizeN/A
Faceplate SecurityDetachable
Remote ControlYes
Peak Power Output80 watts x 4 channels
RMS Power Output25 watts x 4 chan. approx.
Preamp RCA OutputsN/A
Preamp Voltage5 volts
Built-In EqualizerPreset EQ
Display ColorN/A
Button ColorBlue
CD Signal-to-NoiseN/A
Playback Features
AM/FM TunerYes
CD-R/RW PlaybackYes
MP3 PlaybackYes
DVD / Video PlaybackNo
Expandability Features
Audio/Video InputsN/A
iPod Audio ConnectionNo
Satellite RadioNo
HD RadioNo
CD Changer ControlsN/A
Warranty and Return Policy
Return Policy Standard Return Policy
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Installation, Tools & Accessories
Get your car stereo receiver installed by an expert, or do it yourself with install tools and accessories found below.
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Monster Cable MPC CLNKIT-SM CNMonster Cable MPC CLNKIT-SM CN
2 Bottles of LCD Screen Clean with Cleaning Cloth		$5.99
Scosche TK12 Car Stereo Installation KitScosche TK12 Car Stereo Installation Kit
Includes panel removal tool, wire cutter/stripper, test light, RCA cable runner, screwdriver, and more!		$14.99
18 Butt Connectors, 2 Ring Terminals, and Zip Ties18 Butt Connectors, 2 Ring Terminals, and Zip Ties
Great for connecting your car stereo wires to the harness.		$5.99
System Optimization and Tuning
Use these accessories to test and tune the sound your new audio system!
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AutoSound 2000 CD-103AutoSound 2000 CD-103
Audiophile reference series test disc for evaluation of all audio components.		$12.99
AutoSound 2000 CD-102AutoSound 2000 CD-102
High frequency test CD specifically designed for the set-up and evaluation of sound system imaging and placement.		$12.99
AutoSound 2000 CD-105AutoSound 2000 CD-105
Demonstrates different characteristics and specifications of an audio system.		$12.99
Sonic Electronix Stickers
Show off your Sonic Electronix pride with a decal for your car! Choose the size that is best you!
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Sonic Electronix StickerSonic Electronix Sticker
4-1/2" Vinyl SonicElectronix.com Sticker (Blue)		$0.25
Medium Sonic Electronix StickerMedium Sonic Electronix Sticker
6-1/2" Vinyl SonicElectronix.com Sticker (Blue)		$0.50
Large Sonic Electronix StickerLarge Sonic Electronix Sticker
13" Vinyl SonicElectronix.com Sticker (Blue)		$0.99

Product Summary

Manufacturer: Boss
Model number: 638B
UPC: 791489104159
Weight: 6.00 lbs
Internal SKU: 638b
Internal product ID: 6918

Why Sonic Electronix?

Musical Mayhem Sweepstakes sponsored by MTX Audio. 3 winners, $2,300 in prizes!

Customer Testimonial

Good follow up at order placement and it arrived with the speed of light. Very happy with transaction and will be looking there for future needs.

- Bill from Immokalee, FL

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