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Boss 640Ui thumbnail image
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5 star
60%
4 star
20%
3 star
0%
2 star
0%
1 star
20%



Durability
3.8
Value
4.2
Features
3.6
Design
4
Usability
4.4

Customer Reviews

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Just Perfect!

I really like this head unit. Installation was pretty easy. It has an unstopable list of features. It has everything I need. The sound output is very clear and the radio sounds well too. It is very easy to operate. And I really love the 2 color illumination.

By demossav on May 2, 2009

9 found this helpful


good deck for the money

It is a cheap deck that has a good preamp output and I don't have any speaker running directly off of it but it says that it can give them some power. It is in my 1996 grand am and I plan on replacing it with a Panasonic deck but for now it works and I like the fact that you can turn your sub on and off.

By Brian on January 21, 2009

8 found this helpful


The BEST sound at this price range!!

I came across this headunit and was instantly in love. Everything it does and how well it sounds for this price range is incredible. I've been rocking out with it for 2 years and have had it cranked pretty much that entire time. I would reccomend this headunit for anyone regardless of how careless or picky they are about their audio if you don't want to spend an arm and a leg on a high-end headunit. Kudos, Boss.

By Danny on June 9, 2009

7 found this helpful


wont work

Everything on this radio works great except the SD/MMC Card Slot i was kinda bummed about it do to i have loaded a couple with tons of songs.

By doubletap on January 17, 2013

3 found this helpful


Bad quality product...

The following review is for a previous version (634U).

In the past of the year the buttons don't work. The faceplate don't close anymore...

By Edward Ortiz on May 12, 2012

2 found this helpful


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