Читать книгу Blues Guitar For Dummies - Jon Chappell - Страница 26

Getting your sound out of your electric guitar and to your adoring masses requires you to have command over not only your touch and technique but also the features and functions provided by your particular guitar. Two important features of electric guitars (or plugged-in acoustic guitars) are the pickups and the amplification.

Pickups are the little metal bars that “read” the sound coming off the vibrating string and are important because they transfer the sound down the line. The amplification part of the system is what makes the almost inaudible signal loud enough to be heard.

An acoustic guitar (or unplugged guitar) is pretty much a what-you-see-is-what-you-get kind of instrument. But when you bring the power of electricity into the picture, now that’s a whole other story. Although you strike the strings on an acoustic and a sound occurs by coming out of the body of the guitar and through the sound hole (or F-holes on an archtop guitar), when you play an electric guitar your sound filters through an amp and takes your sound to the screaming masses at Madison Square Garden. What the multitudes hear is the pickups underneath the strings “sensing” (they don’t “hear” because they’re not using acoustics) the motion of the string through disturbances in their magnetic field. That disturbance generates electrical current that gets sent through a wire out of the guitar to your amp (see Chapter 15 for more info on amps).