Why do amplifiers need such a large power cable but small speaker wire to transfer the power?

Question

Example, a mono block that pushes 1000 watts rms needs a 4 gauge power cable, but the speaker cable that actually transfers power to the woofer is much smaller.

In: Engineering

Answer 1

The power feeding the amp is usually DC and low voltage.

The power feeding the speakers is AC and high(er) voltage, so it requires a lot less current.