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running four 12 alpine type r at 1 ohm?

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=96952
Printed Date: March 28, 2024 at 5:23 AM


Topic: running four 12 alpine type r at 1 ohm?

Posted By: akickz
Subject: running four 12 alpine type r at 1 ohm?
Date Posted: September 07, 2007 at 2:58 PM

I just ordered Four 12" Alpine Type-R 4ohm DVC subs, I was wondering would any of you suggest running these subwoofers @ 1 ohm on a Hifonics BXi 2006D amp. It pushes out 2000 watts rms @ 1 ohm. If so I will go ahead and buy the amp but if not I may look into getting a different amp. any advice would help, thanks.



Replies:

Posted By: proatthagame
Date Posted: September 07, 2007 at 3:03 PM

akickz wrote:

I just ordered Four 12" Alpine Type-R 4ohm DVC subs, I was wondering would any of you suggest running these subwoofers @ 1 ohm on a Hifonics BXi 2006D amp. It pushes out 2000 watts rms @ 1 ohm. If so I will go ahead and buy the amp but if not I may look into getting a different amp. any advice would help, thanks.

I would look into upgrading your charging system first......

But



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Yours Truly




Posted By: xtremej
Date Posted: September 07, 2007 at 3:04 PM
uhh I believe you have option of running 2 ohm's or 8 ohm's.




Posted By: akickz
Date Posted: September 07, 2007 at 3:07 PM
proatthagame wrote:

I would look into upgrading your charging system first......

But




Right now i have a 3.0 farad cap. what else do i need.

xtremej wrote:

uhh I believe you have option of running 2 ohm's or 8 ohm's.


you can run 2 subs each at 4 ohm and 1 ohm, and all four at 2 ohm and 8 ohm




Posted By: proatthagame
Date Posted: September 07, 2007 at 3:14 PM

Cap wont help if you have a charging issue, just make it worse.

I would start by upgrading BIG THREE. There is a DIY at the top of this forum.

Second if that doesnt help you then a High Output Alt.

What type of vehicle do you have?



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Yours Truly




Posted By: akickz
Date Posted: September 07, 2007 at 3:16 PM
I have a 1999 Buick Park Avenue Ultra. I just got a brand new battery, it usually puts out around 13.4v




Posted By: xtremej
Date Posted: September 07, 2007 at 3:18 PM
The battery comes into play when the car is off or being started. its a start but to run the amperage you will be drawinf you will need to upgrade the big 3 and get a h.o. alt. otherwise stock up on factory alternators and batteries because you will eat them,.




Posted By: akickz
Date Posted: September 07, 2007 at 3:24 PM
xtremej wrote:

The battery comes into play when the car is off or being started. its a start but to run the amperage you will be drawinf you will need to upgrade the big 3 and get a h.o. alt. otherwise stock up on factory alternators and batteries because you will eat them,.


well how much do h.o. alternators cost? and is it possible to just upgrade my wires without having to buy another alternator?




Posted By: proatthagame
Date Posted: September 07, 2007 at 3:28 PM

akickz wrote:

I just ordered Four 12" Alpine Type-R 4ohm DVC subs, I was wondering would any of you suggest running these subwoofers @ 1 ohm on a Hifonics BXi 2006D amp. It pushes out 2000 watts rms @ 1 ohm. If so I will go ahead and buy the amp but if not I may look into getting a different amp. any advice would help, thanks.

These are your options. That amp is class d mono. It has only one channel. Here are your options if you get that amp. You will not be able to run all four of those at 1 ohm. at the least 2.  If the speakers were 2 ohm DVC then one ohm would be possible.

https://www.the12volt.com/caraudio/woofer_configurations.asp?Q=4&I=42



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Yours Truly




Posted By: xtremej
Date Posted: September 07, 2007 at 3:30 PM
You can upgrade the ires without replacing the alt.but I am willing to bet you will run out of juice with the stock alt..




Posted By: proatthagame
Date Posted: September 07, 2007 at 3:30 PM

akickz wrote:

xtremej wrote:

The battery comes into play when the car is off or being started. its a start but to run the amperage you will be drawinf you will need to upgrade the big 3 and get a h.o. alt. otherwise stock up on factory alternators and batteries because you will eat them,.


well how much do h.o. alternators cost? and is it possible to just upgrade my wires without having to buy another alternator?

You can get a good one for around $250-300. I would highly suggest to upgrade that wiring first, then if that does not help you will need a high output alt.



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Yours Truly




Posted By: akickz
Date Posted: September 07, 2007 at 3:34 PM
I will try and upgrade the wires first. but about the speaker setup, I will run each 2 speakers at 1 ohm and connect both to the amp, the amp has two positive and two negative speaker outputs, so it will work. but would you recommend running these speakers at 1 ohm?the hifonics amp is 1 ohm stable.




Posted By: proatthagame
Date Posted: September 07, 2007 at 3:48 PM

akickz wrote:

I will try and upgrade the wires first. but about the speaker setup, I will run each 2 speakers at 1 ohm and connect both to the amp, the amp has two positive and two negative speaker outputs, so it will work. but would you recommend running these speakers at 1 ohm?the hifonics amp is 1 ohm stable.

If this is your amp. It is a one channel amp. It was made mono. I looked at the pictures of the amp and it looks like there are two sets of terminals for speakers but im sure it is only one channel. The diagram i posted above is your only options.

https://www.sonicelectrnix.com/item_6523_Hifonics+BXi+2006D.html



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Yours Truly




Posted By: akickz
Date Posted: September 07, 2007 at 5:08 PM
yes that's the amp




Posted By: proatthagame
Date Posted: September 07, 2007 at 5:25 PM

akickz wrote:

yes that's the amp

Do you have the amp in hand? I have never touched or personally seen that particular amp but from several diff websites, the spec are all telling me it is  one channel class d mono amp. Which would mean the with those speakers, the lowest load you could pull from the amp would be 2 ohms (1300 watts)



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Yours Truly




Posted By: tcss
Date Posted: September 07, 2007 at 7:01 PM
Alpine "R" series subs are available in either dual 2 ohm or dual 4 ohm voicecoils so a final 1 ohm load is possible as long as he ordered the dual 2 ohm version. Don't know if I'd recommend it, but it is doable.

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There is no such thing as free installation!




Posted By: akickz
Date Posted: September 07, 2007 at 7:28 PM
tcss] wrote:

Alpine "R" series subs are available in either dual 2 ohm or dual 4 ohm voicecoils so a final 1 ohm load is possible as long as he ordered the dual 2 ohm version. Don't know if I'd recommend it, but it is doable.


what would you reccomend I run them at?




Posted By: akickz
Date Posted: September 07, 2007 at 7:29 PM
proatthagame wrote:

akickz wrote:

yes that's the amp

Do you have the amp in hand? I have never touched or personally seen that particular amp but from several diff websites, the spec are all telling me it is one channel class d mono amp. Which would mean the with those speakers, the lowest load you could pull from the amp would be 2 ohms (1300 watts)




i dont have it in hand i was going to purchase it. but with what i was saying, i would run each 2 speakers @ 1 ohm and connect them to both speaker outputs.




Posted By: i am an idiot
Date Posted: September 07, 2007 at 9:07 PM

If you run each pair at 1 Ohm and then connect each pair to a set of terminals on the amp, your amp will be running at .5 ohms. 





Posted By: tcss
Date Posted: September 07, 2007 at 10:31 PM
I'm not a 1 ohm believer. I think the amp runs too hot and lacks control. I would get the dual 4 ohm coils and run at 2 ohms. The differance in SPL would be small and the amp would run cooler and cleaner.

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There is no such thing as free installation!




Posted By: akickz
Date Posted: September 08, 2007 at 4:23 AM
tcss] wrote:

I'm not a 1 ohm believer. I think the amp runs too hot and lacks control. I would get the dual 4 ohm coils and run at 2 ohms. The differance in SPL would be small and the amp would run cooler and cleaner.


for running at 2 ohms i was looking at two of these amps , https://sonicelectrnix.com/item_6517_Hifonics+ZXi+1006.html . 2 channel 100 watt hifonics ZXi 1006. runs 500x2 @ 2 ohms, and 1000x1 @ 4 ohms bridged. I honestly want to run all my subs hooked up all together on 1 amp at 2 ohms but cant find a amp that runs 2000 watts rms @ 2 ohms. would you suggest any other amp besides the two hifonics?




Posted By: 2fas4ya
Date Posted: September 10, 2007 at 3:16 PM
a memphis 1500d will run at 2 ohms
# RMS Power Ratings:
* 750 watts x 1 chan. @ 4 ohms
    * 1500 watts x 1 chan. @ 2 ohms




Posted By: jmelton86
Date Posted: September 10, 2007 at 6:45 PM

To get a 2ohm final load using 4 dual voice coil subs on a 1ohm stable mono amp, you need 4 dual 2ohm voice coil subs.

If you do order the 4 dual 4ohm vc subs, I suggest getting either a mono amp that puts out about 1000wrms @ 2ohms OR a bridgable 2channel amp that puts out about 1000wrms x 1 @ 4ohms.

You need 4 dual 2ohm models to load that HiFonics to 1ohm -for max power.



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2013 Kia Rio -90a alternator
DDX470HD GTO14001 GTO1014D (x3)
Big3 in 1/0G
1/0G to GTO14001




Posted By: akickz
Date Posted: September 11, 2007 at 5:13 PM
I think I got my setup right now, I bought two 2 channel amps that run 570 watts RMS x 2 @ 4 ohms. My cousing is running the same setup with Four of the 4 ohm alpine type-r's, and its running real good, barely gets hot.





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