Bose multimedia speakers are common, if somewhat pricey, accessories for desktop computer systems. They're portable, reasonably durable, and offer very good sound quality for their size. Their light weight and compact size also means they are a prime candidate to be used as a set of traveling speakers for people who do movie showings, or for people who want to set up a nice sound system around a DVD player in a small space, like an apartment or dorm room.
DVD Player Audio Out
Most DVD players have both RCA (two cable jacks) and 3.5mm audio out ports. A handful will have something else, like HDMI. RCA audio jacks will cause the least confusion with cabling, and aficionados claim they give better sound. If you have a standard 3.5mm audio jack, Bose's speaker system comes with a splitter cable.
Connect the Cables
Bose's speakers are controlled via the right speaker on the set. There will be two cables –one is an RCA-to-3.5mm splitter cable. Plug that cable into the jacks on your DVD player. If your DVD player doesn't have a 3.5mm cable port, but does have RCA cables, run each RCA cable from the DVD unit to the right hand speaker. Plug the power cable into the back of the speaker, and then into the back end of the AC adapter, and plug the speakers in.
While 3.5mm cable adapters are easily the most common audio out port on DVD players, you may have a DVD player that only has an HDMI port. HDMI includes the audio signal. In this case, you'll need to run the HDMI cable from your DVD player to the television, and then run the audio output cables from the TV to your Bose speakers. You may find, due to cable lengths, that this is a simpler solution than running the audio from the DVD to the speakers directly.
Other DVD Player Features
If your DVD player has additional features, like a built-in sound equalizer, or is part of a multi-function stereo system, look up these additional functions in the manual, and experiment with them. The Bose speaker system has some built-in equalization and additional controls (individual left/right balance, for example) that you may want to adjust in concert with any other audio features supported by your DVD player or television system. Unless your Bose system is rated for Dolby Surround Sound (most of the Multimedia speaker models aren't), you'll want to disable Dolby support to the speakers, because they won't have enough elements to use all of the Dolby channels.