audio set-up for beginners [continued]

[jhnkvn]

ah is this different from the regular car audio capacitor? this is mostly like a customized passive?

You're thinking of big-ass capacitors kasi

The capacitor in-line with tweeter is kinda like this photo (http://www.pispeakers.com/DIY/DX25_Cable_Connected.jpg) take note that this has a capacitor AND a resistor.

A capacitor is simply used to protect the tweeter because it acts like a filter depending on which micro-farad value you put in.