Input impedance on my cabinet? What's this do?

Subject: Input impedance on my cabinet? What's this do? Tue Jun 16, 2009 2:33 am

I know! I know! I'm an electronic musician, and I don't fully understand impedance. Even worse, I have a Crate guitar cabinet that has a 4 ohm / 16 ohm switch.

All it says on the cab is 4 ohm / 16 ohm (8 ohm stereo). My cab has stereo input, oddly enough.

So what difference will that make on the sound? Anyone familiar with this stuff? I feel like such an idiot for having to ask this... excitedjumpers

one 4x12 cab should be ran at 8 ohms.

Ok... but what is the point of the switch then?

^To annoy the crap out of musicians....

Chou wrote:: Ok... but what is the point of the switch then?

for different cabinet set ups.......full stacks.......2x12 cabs and such.

...Ok...

So I'll set it to 8... Smile

if i'm correct........16 is for a 2x12 cab and 4 is for 2 4x12s

Number of posts : 48 Age : 55 Registration date : 2009-07-27 Points : 5656

the whole point to that is so that you get the proper response from the cab to the amp. without it you can blow up an amp easily. Take the time to learn how to set it up for your stuff and then make sure you do it the same all the time. switching impedence can be dangerous to some amps...

on my amp, i have a switch so it can match any cab.
on my cab i have switches to change it too..
so i have to make sure i have it set up right

I have known people to blow thier amps by doing it wrong.

Number of posts : 48 Age : 55 Registration date : 2009-07-27 Points : 5656

http://www.about-guitar-amps.com/speaker_ohms_calculator.html

good info to know..thanks sebat.

the switch is whether or not you are going to run 16ohms true stereo, 8 ohms normal or 4 ohms which is mono. Google or BING impedance my friend!