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Digital input question

06-21-2007, 11:45 AM
I have an older Dolby digital preamp (Marantz AV550) and it has only two digital inputs - one coaxial and one optical. I want to add a third Dolby digital device. Do I just get a 2-into-1 RCA adapter and use the coaxial for two devices or is there a better way?

06-21-2007, 11:52 AM
I would use a switch.

06-21-2007, 11:55 AM
You have to use a switch. If you combine both digital input into 1 cable to the receiver you will have interference between the 2 digital signals.

06-21-2007, 03:32 PM
I only imagined having one of the two turned on any one time. Where do I get a switch?

06-21-2007, 03:50 PM
You can get a manual switch for like $10. 1 with remote for quite a bit more.


06-21-2007, 07:47 PM
Thanks. That will take care of it.