I bought a new imac computer but my boston 7500g speakers will not work with the mac. could someone please point me in the right direction?

SOURCE: Install Boston Acoustic speakers BA7800 to a new Imac?

Partial Solution anyway - I just got a Mac Pro (2.66 Nehalem )and couldn't find the manual from my old Gateway 700XL. This is what I did: Plug the green wire into the analog output, and the pink wire (if you really need an external mic, but you shouldn't since our new computers both have a built-in mic) into the analog input. Just ignore the black wire. You won't have the 2 surround speakers, but I'm still looking for a fix for that. I got tired of the crappy speakers in my new Apple Cinema display (the ONLY crappy thing about my new system). As you know, the sound from the BA7800 is great, even with just the two front speakers and sub-woofer. I'll keep you posted if/when I figure out how to set up the surround speakers! Likewise, if you hear something, please post here and I'll keep checking back.

SOURCE: My speaker set up boston acoustics ba7500 will'nt

it will play just you plug the speaker line in into the speaker port and then switch on your power of speakers.firstly see wheather the sound is muted or not

SOURCE: can't get Boston ba745 speakers to work on Imac os

I there , make sure you have installed your MB and sound card drivers correctly for the correct OS ...Then it should work..
Happy new year