FireFly Media Server (formerly mt-daapd) › Firefly Media Server Forums › Firefly Media Server › General Discussion › Play simulaneously from iTunes and Soundbridge › Reply To: Play simulaneously from iTunes and Soundbridge
Multiple SoundBridges can’t synchronise with each other. The best you can manage is to have them within about 1 second of each other but you need 3rd party software to do it.
http://www.rokulabs.com/community_3rd_sb.php has links to some 3rd party software. Cidero claims to offer basic synchronisation.
The SoundBridge has three audio outputs (Digital optical, digital coax & analogue)
All three work all the time & are independent. In another thread at least one person has used the multiple outputs to achieve the desired goal of a cheap multizone system.
Your other alternative is to stream the music (like an internet radio station does).
I think shoutcast is the application used.
The easiest setup to try out would be to have the ground floor SB in a multi-output setup & have the 1st floor SB loosely synchronised to it using Cidero
Or just go and buy a multi zone amplifier.