In addition to using an FM transmitter so people can listen to my show in their cars, I have an audio system for people who pass by on foot or who get out of their cars to see better. This is the amplifier I use with my equipment.
Digital Audio Amplifier
Digital technology allows this amp to provide a surprising amount of power for such a small unit (only 5.7 x 4.7 x 1.6 inches). The power output is similar to that of a typical car stereo (20 watts RMS or 50 watts max per channel). Works great with these waterproof marine speakers to provide good sound quality to pedestrians.
In order to connect the audio from your projector to both an FM transmitter and this amp, you will need some extra audio cables. I use these:
