Digital Audio Output

[Jamesrzzzz]

Hi I recently received a pair of Boston Ba735 on the back of them it says digital in. the cable that connects to the speaker looks like a ps2 cable (like from a old keyboard), on the other side of the cable there is a 3.5 mm jack that  I could plug in to my computer or my phone, when i plug it in nothing happens. Does any one know how to fix this problem, or are these speakers not compatible with my equipment? 

[themctipers]

looks like coaxial in 

[Jamesrzzzz]

4 minutes ago, themctipers said:

looks like coaxial in 

I do not have the purple one, the one i have is the black one. this is the cable i have

[KenjiUmino]

you mean this?

 

 

 

that cable looks like it has a mono phone plug on one end and a chinch on the other - however, the chinch input on the speaker is digital only - some soundcards used to output digital audio over a phone plug so that is where this cable would work. it would not work on a normal analog line or phones output jack.

 

if your speaker system does have the purple "analog in" jack like the one in @themctipers picture then use that one - otherwise use a chinch to chinch cable and on a digital output if you have one or get an analog to digital converter that looks like this: