ohm's and watts
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On The Tree
Joined: Aug 2002
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From: Michigan
ohm's and watts i don't fully understand what ohm's mean, like ho wyou can run amps on different ohm's to get more watts, and if the amp has to be running on the same ohm of the subwoofer that is recommended. that all might be a little confusing but im lost, thanks in advance.
12 Second Club
Joined: Sep 2002
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From: Goldsboro NC
Re: ohm's and watts okay i'll try to give it to u the easiest i know...if i leave anything out someone else chime in...........ohm's is a measure of resistance so an amp running at 2 ohms puts out rought 2x the power it does at 4 ohms and so forth..but the lower the ohms the more heat is produced by the amp...you can also bridge amps to triple their normal 4 ohm output...this is done by taking the + of one channel to the - of the other channel...the number of ohms the amp is running is determind by how the subs are hooked up...u can see how to wire subs by going to www.crutchfield.com or some other major audio site...theyt should have diagrams on wiring speakers...hope that answered ur ?s...if not email me
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From: Showing Italians the power of LS1
Re: ohm's and watts Basically, a simple way to explain it to you, is the lower the resistance (measured in Ohms) that an amplifier "sees" on it's output to a speaker, the more power the amplifier will develop(in Watts). Although diffrent amplifiers are rated to produce power into diffrent resistance loads, DO NOT RUN YOUR AMPLIFIER INTO A HIGHER THAN RATED RESISTANCE. If the amp is rated for X watts into a 4-Ohm load, do not try to put a 2 Ohm load to the amp, thinking that the amp will put more power into it. The amplifier might, depending on how it's made, but if you run it out of it's ratings, you will burn it up. Now, all car stereo speakers are rated as far as their impedance (resistance), either 2,4,6, or 8 Ohms. If an amplifier is rated stable to a 4 ohm load, you can wire 1 4 ohm speaker to that output of the amp. The amplifier will see 4 ohms. Or, should you need to wire two speakers, you will need to use two 8 ohm speakers, and wire them in series (pos from amp, to spkr #1, out of neg of spr #1 to pos of spk#2, out of neg of spkr#2 to neg output of amp.) This wiring type used with 8 ohm speakers, will have the amp "see" 4 Ohms. If the amp is rated for 2 ohms, do the same thing, but use 4 ohm speakers. Here is a link that might explain things a little better. If you are still unsure of how it all works, stop by your local car stereo shop,(not Circuit City or Best Buy) and ask an installer. Don't be a pest, but most good installers will answer your questions. Many great installers started as customers who asked questions.
http://www.allcar-speakers-subwoofer...amplifiers.htm
http://www.jlaudio.com/tutorials/wiring/index.html
http://www.allcar-speakers-subwoofer...amplifiers.htm
http://www.jlaudio.com/tutorials/wiring/index.html
