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The History of Amplifiers
Tips on Guitar Pre-Amps
How a Guitar Bridge Works
How Electric Guitars Work
How Classical Guitars Work
How Natural Amplifiers Work
How Flat Top Guitars Work
How Acoustic Bass Guitars Work
How a PA Amplifier System Works
How Guitar Amplifiers Work
How to Use a PA Amplifier System
What is Reverb & How it Works: Acoustic Amplifiers
What is Tone Control & How it Works: Acoustic Amplifiers
How Microphones Work
How to Set Up a Microphone
How to Use Special Effects in Audio
How Strings Work on Musical Instruments
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Learn some great tips on PA amplifiers and how they are used in this free video clip on amplification and … More
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Learn the differences between bass amps and guitar amps in this free online instructional video.… More
Summary: Learn some great tips on PA amplifiers and how they are used in this free video clip on amplification and amplifiers.
Jim Dufresne taught 20 years in Community College and currently teaches at S.W. Academy and gives private lessons. He performs at the Maybery Ranch western show and has a band "Cazz...read more
"On behalf of Expert Village, my name is Jim Dufresne and I'm here to talk about amplifiers. Okay, let's talk about how we'd typically use this PA system with a guitar. Okay, let's have some fun, let's make it feedback. Okay, hear that note? That's a pretty low note. So, that tells you that the feedback note is in the lower range of the EQ, so you drop that down. Raise that volume again. See how far we can get that guy to come up, and go further now. Just start to hear a little bit of it, right there. Okay. Whoo, man, that thing's loud. Now, let's go to the next band. We got a little bit of feedback there, so we can cut that one down a little bit. Okay. Now you're saying, well, the guitar sounds pretty crappy. Well, you're right, so now we have to move the other bands down. Let's move the mid-range down, let's move the high-mid, let's move that triple down, because otherwise the guitar's going to sound pretty dorky. Now we've got a nice - now I wouldn't normally push a PA system this hard, but there's going to be times when you're competing against other musicians and you're going to want to figure out how to get your acoustic guitar to play as loud as possible. That's what it is, you search out the frequencies that are feeding back, and then tailor the rest of the bands to suit."
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