example 8ohms + 8 ohms = 16 ohms

However your cabs are connected in Paralell That calculation if the resistors are the same value is:

Resistance 8 ohms

--- = 4 Ohms

2 total number of resistors

--------------------------------------- +

I I

8 ohms 8 ohms

I I

--------------------------------------- -

If they are not the same the calculation is R1 x R2

------- = Total Resistance

R1 + R2

If your speakers were wired like - Speaker + ----- - Speaker + that would be in series

This is how it comes out of the Jack

+ ________________________________ +

CAB 8 ohms CAB 8 ohms

- ________________________________ _

Since you have less resistace this means you have more Power... And More Current So look at the rating on your CABS so you don't blow the snot out of them....

Hey, I sucked at the Guitar I had to make a living someway...

A drunkard's dream if I ever did see one