Ohm's Sweet Ohm's

[Anonymous]

What are ohms? (in laymans terms) I bought 2 12" Kicker Amps rated 400W at 4ohms. So i need amps that can feed 200W at 4 ohms (am i right). When i've been looking at amps the main wattage they quoted is RMS 2ohms all the 4 ohms figure seem to be half the 2ohms RMS. What are ohms and how do i switch an amp to different ohm levels?

B-) "I don't know karate, but i know kerrraaazy" B-)

[Anonymous]

ohms are what resistance is measured in. with speakers it called impeadence. i recomend reading about it as it would be a stupidly large post from me. but basically if you wire 2 speakers of say 4 ohms on parrallel they will give the impression of 2 ohms. if you put em in series then you would get an 8 ohm figure. With a lower impeadence the amp can chuck out more power for the same voltage!! P=VI (I=V/R) so a smaller resistance = more power per volt READ ABOUT IT is the best advice i can give without teaching you A-Level electronics :D:D:D:D:D:D:D:D

I AM CORNHOILIO

[Anonymous]

Cheers cambridge i think i understand a little better now. Just a few less vague questions for you.

So to put it simply the resitance depends on the way the speakers are wired? For the subs above what spec amp should i be looking for? and does bridging affect resistance?

B-) "I don't know karate, but i know kerrraaazy" B-)

[Anonymous]

yeah basically the way they are wired up affects the impeadence.

i would look at a 2 channel 400W 2 ohm stable amp, that can be bridged and thenput yer subs in parrallel. robert is your fathers brother BOOM BOOM BOOM

bridging dont affect resistance it affects the POWER out

I AM CORNHOILIO

[Anonymous]

yeah as cambridge says.
i dont know too much about ICE but isnt it all D.C voltage cambridge? impeadance is only in A.C, no?
just asking cause i aint too sure and it would help me understand ICE a bit more.
cheers
Dave

[Anonymous]

what are you getting at 13srboy???

your repeating what ive sed!!! ac/dc dont matter when it comes to resistance/impeadence!!!

I AM CORNHOILIO

[Anonymous]

i know there the same impeadence/resistance, inductance capaciatance and all that.
I just wrote "what you said" so i could write something to get my question across too.

[Anonymous]

inductance and capacitance are far from the same and even further away from resistance.

I AM CORNHOILIO

[Anonymous]

me thinks cambridge does a bit of electronics or maybe physics?

[Anonymous]

electronics matey!!

im at uni doing automotive electronics engineering BEng Hons

I AM CORNHOILIO