Originally Posted By: Charlie Fogle
Looks like we provided an overkill solution to your problem. FM is still the way to go since it seems the party won't be around the piano at Christmas but the piano music will be piped to the party.

You can transmit further and your transmitter will broadcast longer if you have a 12 volt battery of some sort. Maybe a lantern battery or car battery.


I didn't think about using an FM transmitter. In fact I think I have one lying about somewhere, I will give it a try. I have only used an FM transmitter in a car and seem to remember it was hard to find a clear frequency. Perhaps it is easier in a static situation. For a 12v power supply I will use an old AC/12V 3A DC adapter.

Thanks
Tony