Cable box to outboard DAC


I would like to connect my cable box , a Scientific Atlanta Explorer 2200 , to a DAC . The cable company says that the digital audio out connection is AC-3 . It looks like a single RCA connection . Is this correct ?
Does an aftermarket DAC manufacturer make a component that will read this type of signal ? I would like a better sound than I am getting from the analog RCA outputs which uses the cable box DAC . This is for the cable company's CD quality music only channels not the regular TV channels .
saki70
I think other is PCM. Try it. If it is something that the dac can not digest, most likely it will not output anything.
Just have the volume in your system lowered when you do try it.....just in case.
Yes , normaly I would have . I don't have a DAC to try it with .
Can anyone tell me if PCM is the 'other' or point me to a
convertor of some kind ?

Thank you .
On one box I have, "other" = PCM. On the other box, its some strange format and I have no idea what it is. No way to tell for sure w/o hooking it up to a DAC, unless you find a really, really good tech in your CATV company's tech support...

You might also try digging around here:

http://www.scientificatlanta.com/consumers_new/CableBoxes/2200.htm

They have manuals for most of their boxes. I note that Sci Atlanta describes your box as supporting "AC-3" and "Musicam" digital audio support.

An AC-3 -> PCM "converter" is a digital HT preamp, like a Theta Casanova or Casablanca. So, yes, converters exist, but it won't be cheap. Nothing, to my knowledge, will do AC-3 or Dolby to 2CH with little or no configuration, staying in the digital domain, and for cheap.
Thank you Edesilva , I will check the site .
Thanks to all who have tried to help me .
Why not just a cable box that will output PCM? They're not that expensive. Mine does. I'm not at home and so don't have the make and model handy, but if you're interested, send me an email and I'll get it for you. In fact, I will be getting a different cable box soon, and my old one would be available for cheap.