I have looked everywhere, but I can't seem to find a way to simplify this circuit. I wish i could tell you some of my ideas, but I'm really lost here, can someone help me? If you could explain how to go about it, it would be awesome.
The schematic is a bit confusing, because the 2nd loudspeaker is drawn "upside-down" with its driving signal connected to its lower terminal. It might be more clear (but take more space) if you draw it this way,
There is nothing more to simplify. You can use mesh or nodal analysis to complete the analysis of the circuit.
The speakers are neither in series nor in parallel. They are just sharing a ground node.
Figure 1. A redrawn schematic.
The clue to untangling is that you have a common line running from the signal source to both so we'll make that our reference at the bottom of each circuit.
To understand what each circuit does just remember:
- A capacitor blocks DC completely (and low frequencies almost as much) but lets high frequencies through.
- An inductor blocks high frequencies but lets DC (and low frequencies) through.
From this we can quickly deduce that:
- The upper circuit will let low frequencies through L1 and any higher frequencies that do get through will tend to bypass the speaker via C1. It's a low-pass filter. Connect your big loudspeker here.
- The lower circuit will pass high frequencies and low filters will be blocked by C2 and shunted by L2. It's a high-pass filter. Connect your tweeter here.