Pickup & Preamp & Sound Hole Guitar Accessories

       Pickup is accessories to capture the sound of guitar strings to the sound system (preamp, speakers, sound effects, etc.). Usually these accessories directly placed inside the guitar, but there is also a guitar pickup is only attached to the head or a guitar sound hole. 
       Function as a simple equalizer preamp on the guitar strings sound captured by the guitar pickups. Usually consists of 2-6 settings. Sound Hole is a hole to plug the guitar jack guitar cable, guitar preamp connecting point to the sound system. Pickup can be seen in figure 1 pps, 2 pps preamp on, and for example at 3 pps.

PPS 1

PPS 2

PPS 3