ohm’s

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northballer

Copper - Posts: 57

Joined: September 20, 2003

Location: United States

Posted: June 09, 2004 at 12:45 PM / IP Logged

What is the best 1OHM, 2OHM, 4OHM I see this but really dont understand it. How do you get a SUB to perform at diffrent OHM'S and how do you get AMPS to perform at deffrent OHM'S is it all in the wiring someone please explain. Thanks.

DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: June 09, 2004 at 12:54 PM / IP Logged

It is all in the wiring. Ohms are electrical resistance. Purchase you amp and then purchase a sub (or subs) with the proper resistance to match the amp. Go here and read through some of the tutorials if you really want to learn.

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forbidden

Platinum - Posts: 5,352

Joined: November 01, 2003

Location: Alberta, Canada

Posted: June 09, 2004 at 1:21 PM / IP Logged

And then ask lots of questions, no matter how stupid they may sound (try the search function first though.)

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northballer

Copper - Posts: 57

Joined: September 20, 2003

Location: United States

Posted: June 09, 2004 at 1:31 PM / IP Logged

That does explain alot Thanks But I have a couple of questions and maybe I missed it from the site but is lower ohms better and can an amp with low ohm specs like a 2 OHM anp handle a higher amount of ohms Like 8 OHM but a higher rated amp like 4 OHM cant handle a lower amount I think I have a pretty good Idea though from the wiring they show THANKS

DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: June 09, 2004 at 1:44 PM / IP Logged

Amplifier ratings specify wattage into MINiMUM load. Any load higher than the ratings is safe, it's just that the effective power output decreases. Indeed, audio amplifiers operate better at higher ohm loads as they do not have to work as hard. The lower the ohms in the speaker load the higher the current flow out of the amplifier. The higher the current flow, the hotter the amp gets and the more noise and distortion it produces. At too low an ohm load, the amplifier cannot sustain the current and it either shuts down, blows a fuse or it produces max smoke.

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Ketel22

Silver - Posts: 976

Joined: August 23, 2003

Location: United States

Posted: June 09, 2004 at 1:45 PM / IP Logged

amps can always handle higher impedences (a 2ohm rated amp can handle a 3, 4, 8...ohm loads) a amp rated at 4ohms may or may not be able to handle 2ohms.

usually you run at higher impedences when you want more of a sound quality setup because when you push your amps to the max at 2 or 1ohm then the s/n ratio becomes worse and worse....

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northballer

Copper - Posts: 57

Joined: September 20, 2003

Location: United States

Posted: June 09, 2004 at 1:48 PM / IP Logged

This explains alot I have had 2 amps that started smoking and I thought they just went bad. If they smoke does it mean they are ruined.

DYohn

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Joined: April 22, 2003

Location: Arizona, United States

Posted: June 09, 2004 at 1:54 PM / IP Logged

Smoke = bad and usually = ruined. In all cases, if an amp smokes, it will probably no longer operate at it original specs if it still operates at all.

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northballer

Copper - Posts: 57

Joined: September 20, 2003

Location: United States

Posted: June 09, 2004 at 1:58 PM / IP Logged

Thanks for all the help.

JungleBadger

Member - Posts: 8

Joined: June 15, 2004

Location: United States

Posted: July 17, 2004 at 5:49 AM / IP Logged

So if your amp says it will run at 2ohm and 4 ohm it all depends on how I wire the speakers to get it to perform at the differrent ohm level? so say I'mm looking at specs like

4 Channels

60 x 4 RMS @ 4-ohms

120 x 4 RMS @ 2-ohms

240 x 2 RMS @ 4-ohm Briged

I would have to wire two 4ohm speaks in parallel in order to achieve 2ohm amp output?

Sorry been reading about this and the books kind of leave that part unanswered.

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