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d2jsp Forums > Off-Topic > General Chat > Car Audio > Check Out This Chart About Dropping Ohms > Is It Correct?
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Mar 7 2012 05:01pm
Quote (Avoid @ Mar 7 2012 10:16am)
The only reason I say that is because most likely you arent going to see the power that you want from the amp. If you ran them at 4 ohms, which would probably sound a bit better, yea you wouldnt be powering them fully, but you have to remember, you'd also be removing 4 speakers which would give you more power. Speakers are better to run at 4 ohm than 2 or 1.

Yes the ohms are correct.


Buuut, might I suggest getting crossovers for the mid range/tweeter combination?


crossovers are on their way

Quote (Hellish Orc @ Mar 7 2012 05:09pm)
When you have speakers that handle a lot of power more often than not 2 ohm is better... I run 2 ohm to my door speakers and notice no SQ difference just that they got almost twice as loud.

That diagram is correct and will work fine, you'd be suprised what you can get away with, with ohm loads.


dropping to 2ohms usually doesnt affect the speaker itself in anyway, its just the resistance from the power going to the amp, which allows more power the speaker, which makes it slightly better quality+loudness

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Mar 7 2012 05:09pm
the thing about running 2 ohms instead of 4 is you get more thd usually and it will cause your amp to put off more heat.

both are only problems if the amp itself isnt very good to begin with.
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Mar 7 2012 05:10pm
Quote (Subwoofer @ Mar 7 2012 06:09pm)
the thing about running 2 ohms instead of 4 is you get more thd usually and it will cause your amp to put off more heat.

both are only problems if the amp itself isnt very good to begin with.


well this amp is good, but holy god its running hot as hell

i burned my finger touching it on the way home from the shop i bought it at.
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Mar 7 2012 05:10pm
Quote (Subwoofer @ Mar 7 2012 06:09pm)
the thing about running 2 ohms instead of 4 is you get more thd usually and it will cause your amp to put off more heat.

both are only problems if the amp itself isnt very good to begin with.


Ill be running 1 ohm soon, I can't wait!
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Mar 7 2012 05:14pm
Quote (]GS[ Controller @ Mar 7 2012 06:10pm)
well this amp is good, but holy god its running hot as hell

i burned my finger touching it on the way home from the shop i bought it at.


might try removing as couple speakers and running it only at 4 ohm and see if there is much difference. heat is normal but knowing what normal is for it will let you know if its getting too hot.

Quote (Pattycakes @ Mar 7 2012 06:10pm)
Ill be running 1 ohm soon, I can't wait!


your truck is going to explode!

This post was edited by Subwoofer on Mar 7 2012 05:14pm
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Mar 7 2012 05:20pm
Quote (]GS[ Controller @ Mar 7 2012 11:01pm)
crossovers are on their way



dropping to 2ohms usually doesnt affect the speaker itself in anyway, its just the resistance from the power going to the amp, which allows more power the speaker, which makes it slightly better quality+loudness


Actually it does... going from 4 to 2 you lose a ton of efficiency in the amplifier usually and causes more s/n ratio and distortion. 2 ohm is a lot harder on your system and not as clean, but if you do it right it's not audable.
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Mar 7 2012 05:23pm
Quote (Hellish Orc @ Mar 7 2012 06:20pm)
Actually it does... going from 4 to 2 you lose a ton of efficiency in the amplifier usually and causes more s/n ratio and distortion. 2 ohm is a lot harder on your system and not as clean, but if you do it right it's not audable.


ah ok ty

Quote (Subwoofer @ Mar 7 2012 06:14pm)
might try removing as couple speakers and running it only at 4 ohm and see if there is much difference. heat is normal but knowing what normal is for it will let you know if its getting too hot.



your truck is going to explode!


put it this way
it was as hot as a stove top minutes after you cook something, so you get 1 second max before your finger burns

this was on the heat sink bars on top of the amp, but everwhere else was almost as hot but not quiet.

my hk4000 running at 1ohm never gets over 120 on daily use and ofc when i slam it raises

just seems wierd.
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Mar 7 2012 05:25pm
Quote (Subwoofer @ Mar 7 2012 06:14pm)
might try removing as couple speakers and running it only at 4 ohm and see if there is much difference. heat is normal but knowing what normal is for it will let you know if its getting too hot.



your truck is going to explode!


If I like this amp I have a friend selling his HCCA's that are practically new, for $100 lol.
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Mar 7 2012 05:27pm
Quote (]GS[ Controller @ Mar 7 2012 06:23pm)
ah ok ty



put it this way
it was as hot as a stove top minutes after you cook something, so you get 1 second max before your finger burns

this was on the heat sink bars on top of the amp, but everwhere else was almost as hot but not quiet.

my hk4000 running at 1ohm never gets over 120 on daily use and ofc when i slam it raises

just seems wierd.


4 channel amps basically like being at 4 ohm. going lower gets worse pretty quickly on most of them.

Quote (Pattycakes @ Mar 7 2012 06:25pm)
If I like this amp I have a friend selling his HCCA's that are practically new, for $100 lol.


lol nice. you are lucky lately.
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Mar 7 2012 05:29pm
Quote (Subwoofer @ Mar 7 2012 06:27pm)
4 channel amps basically like being at 4 ohm. going lower gets worse pretty quickly on most of them.



lol nice. you are lucky lately.


Bout time, I also got a brand new 4.3 vortec crate motor with heads/intake and all for $600! I'm closer to my bottle than I thought!
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