Like any sound reinforcement system, a PA system — or Public Address system — has three components:
– A pickup device (such as a microphone) to convert sound waves into an electronic signal
– An amplifier to boost the weak signal produced by the pickup to a level that can power a speaker
– A loudspeaker to convert the electrical… Read the rest 
All PA systems (or public address systems) have three things in common: a microphone to pick up sound, an amplifier to boost it electronically and at least one speaker to broadcast it to a listening audience.
Beyond these commonalities, PA systems come in all shapes and sizes, from handheld megaphones at football games to massive, scaffold-mounted systems with dozens… Read the rest 
A mixer is an essential device for recording and performing artists, as well as audio engineers.
You can use a mixer almost anywhere to help meet your audio needs, including at a recording studio, business conference, church event or school play.
If you’re looking for a powerful, reliable and portable mixer, I highly recommend the Yamaha MG166CX 16-Channel Mixer with… Read the rest 
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