The conventional wiring is called series parallel and the speakers themselves are each 16 ohms.
2x12 speaker cabinet wiring diagram.
I am here to offer my guidance grasshopper.
Again assuming we re using the same 8 ohm 50w guitar speaker cabinets the impedance of the cabinet is 2 ohms 8 4 2 and the power handling is 50w x 4 or 200w.
The diagram below shows the wiring of a marshall 2x12 speaker cab having a mono stereo selection switch and two specialized input jacks.
The big thing to consider regarding speaker installation is the power your amplifier outputs.
If the amp is rated for 100w the cabinet should be able to accept more than 100w for safe operation.
The most common request i get is for 2 speakers that are 12 inch in diameter 2 x 12 however this solution pertains to 2 10 s 2 15 s or any mix of sizes.
This is your classic 4x12.
So if you have a 4 12 speaker cabinet and a 100w amplifier four speakers rated at 30w would be safe.
Many people have asked how to wire up a 2 speaker cabinet that can have an extension speaker cabinet usually another 2 speaker cabinet plugged into it when desired.
Maybe you need some help with wiring said cabs.
In essence there are two ways to wire up a 4 speaker cabinet that both wind up with the cabinet having the same impedance as any one of the individual drivers or in other words a cabinet with four 8 ohm speakers that ends up with a total cabinet impedance of 8 ohms.
The two main methods of arriving at this means are as follows.
The cabinet is rated at 120w.
And here s the wiring diagram for four guitar speaker cabinets wired in parallel.