3 amps, 3 subs, 3 ohms.
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=25945
Printed Date: May 15, 2025 at 8:37 AM
Topic: 3 amps, 3 subs, 3 ohms.
Posted By: thapimpfromchi
Subject: 3 amps, 3 subs, 3 ohms.
Date Posted: February 06, 2004 at 10:38 AM
Hey guys, I'm thinking about getting myself 3 seperate amps, one for
each of my subs. I cant seem to find a 1000 watt amp at 4 ohms, for
cheap. I would much rather have the single amp, but I think i'm gonna
have to get the three. Well, amp I was looking at is the Polk/MOMO
500.1 Carbon series. The amp is a mono block amp, thats capable of
350W x 1 @ 4ohms, or 500W x 1 @ 2 ohms. The reason for the Subject
line, is because I have dual six ohm subs, so, when i wire them in
parallel, im going to get a 3 ohm load. I was just wondering if there
was a way to calculate how much power I'd get from the amp for each
sub, and if these amps would work. I am going to use these amps to
power 3 MA Audio 10" Dual 6 ohm subs. They handle 350 RMS, 700 Peak.
Thanks alot.
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1990 Honda Civic HB:
Clarion DXZ545MP H.U.
2- 6.5" Power Acoustik interiors
Diamond Audio 600.1 amp
Diamond Audio 15" M6MKII
Pyramid PB881X 4 CH. Amp
Replies:
Posted By: mikep3
Date Posted: February 06, 2004 at 11:28 AM
I would suggest that you get a nice class-D amp that can go down to 1 ohm. If you were to wire the coils in parallel and them wire the subs in parallel you would get 1 ohm. This would probably be cheaper as well since you wont need 3 amps and all the hassle of connecting more rca's. For you other question you would probably get about 425 watts out of that amp at 3 ohm's (about the middle between 350 and 500).
Posted By: EzekialPhoenix
Date Posted: February 06, 2004 at 11:29 AM
If you are going to spend the money to get three amps, why not get a jl audio 1000/1, which puts out equal power at 1.5-4 ohms. That will be giving the speakers pretty much exactly the power they need, and probably will be cheaper than buying three separate amps. As a bonus, it happens to be regarded as a very good amp.
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I be tossin and flossin, my style is awesome. Causin' more family feuds than Richard Dawson.
Posted By: thapimpfromchi
Date Posted: February 06, 2004 at 11:44 AM
I saw the 1000/1 amp, but that damn thing is 1000 dollars. I can get the polk amps and caps cheap through a friend who works at circuit city. I never thought of the class d amp idea though. Hmm...
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1990 Honda Civic HB:
Clarion DXZ545MP H.U.
2- 6.5" Power Acoustik interiors
Diamond Audio 600.1 amp
Diamond Audio 15" M6MKII
Pyramid PB881X 4 CH. Amp
Posted By: gregfocker77521
Date Posted: February 06, 2004 at 7:25 PM
I selling a memphis 1000 that you can use for your 3 subs...I'm selling it cheap. you would be getting aprox 365 watts to each sub when everything is wired at 1ohm emait me for more info luissegovia@earthlink.net
Posted By: forbidden
Date Posted: February 06, 2004 at 8:48 PM
Your best bet is to use one amp to power all 3 subs, you can run into all sorts of headaches if you try the one amp per sub route, things like space for mounting, extra money for wiring, proper crossover matching, proper gain setting, type of box used, differences in efficiencies of the amps, proper signal splitting on the rca input....... Find a good solid class D mono sub amp, spend the extra little bit on it, it will not dissappoint you.
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Top Secret, I can tell you but then my wife will kill me.
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