This article is intended to explain the actual physics of how a bass guitar works. I'll start with explaining some of the theory involved around the movement of the strings, and how different tones, or pitches, are achieved. Next I'll explain how this movement of the strings interact with the pickups to produce a signal that can be transfered to the amplifier. The last bit of the signal chain, from the amp input to the speaker cone, will not be covered in depth, but will get a superficial explanation. I don't assume any advanced physics skills from the reader, so I'll try to keep things as simple as possible.
The purpose of this article is to explain how amps and cabs work together in a rig. I'm going to explain how the power from the amp is distributed to cabs, and what effect the cab load has on the amp's power output. I'll show the three most common combinations of amp and cabs, and explain how you can calculate loads.
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