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Amp + subs?

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Old Sep 13, 2007 | 02:25 AM
  #1  
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Default Amp + subs?

I'm debating which Alpine Type R's to get and I don't know TOO much about what Ohms mean etc. so I am currently stuck between the following:

2 12"
Alpine SWR-1222D (TYPE R)
2 Ohm

2 12"
Alpine SWR-1242D 12" Type-R.
4 Ohm


Both are 1500w Peak and 500w RMS... which should I go with?

Also what amps would you suggest with each one? I have around $300 to spend on the amp.
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Old Sep 13, 2007 | 02:46 AM
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Ive got a nice lil amp that will do the job!
Check it out: https://ls1tech.com/forums/non-automotive-classifieds/764027-f-s-memphis-16-st1000d-amp.html
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Old Sep 13, 2007 | 09:19 AM
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$300 should get you a decent amp.
Heres a couple, there are more but I gotta finish getting ready for work
http://www.sonicelectronix.com/item_...BXi+1606D.html
http://www.sonicelectronix.com/item_...O1201.1II.html

You can also find Kicker amps on ebay pretty cheap.

You can buy either of those subs depending on the amp. If the amp runs at 1 ohm (stable), then you want the dual 4 ohm subs. If the amp runs at 2 ohm (which most do), then you want the dual 2 ohm subs.
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Old Sep 13, 2007 | 10:58 AM
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Heres what you want,
Amp:
One, Alpine MRP-M850 RMS Power @ 2 ohms: 800W x 1
Subwoofer:
Two, Alpine SWR-1222D

PM me if you want a place that you can get them from discounted.
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Old Sep 13, 2007 | 01:42 PM
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Originally Posted by Gordon0652
Heres what you want,
Amp:
One, Alpine MRP-M850 RMS Power @ 2 ohms: 800W x 1
Subwoofer:
Two, Alpine SWR-1222D

PM me if you want a place that you can get them from discounted.
Problem with that is you end up with a 1-ohm load to the amp when running the two 2-ohm subs in parallel. With that amp you would need the 4-ohm version of the subs (SWR-1242D) so that you end up with 2-ohms to the amp.
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Old Sep 13, 2007 | 02:18 PM
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They are dual 2 ohm VC, and if you have 2 subs you can bring them both to a 1 ohm, then connect them togather so that you get a 2 ohm load.

http://www.rockfordfosgate.com/rftec...2&woofer_imp=3
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Old Sep 13, 2007 | 02:20 PM
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Oops...my bad. I was thinking SVC rather than DVC.
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Old Sep 13, 2007 | 11:07 PM
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But why get an 800 watt amp for subs that'll take twice that?
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Old Sep 13, 2007 | 11:35 PM
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I am running 2 JBL power P1222 in my car with that amp, and brought down to a 2 ohm load, and its too much! You will be fine with that amp, and if you go bigger you will need a cap.

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Old Sep 13, 2007 | 11:40 PM
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Unless you are thinking of this Kicker ZX1500.1, that 1500 watts RMS at 2 ohms. You would mostlikely need a new alternator, new battery and a 2.0 cap. And you would never use all that power.
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Old Sep 13, 2007 | 11:51 PM
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"too much" is a matter of opinion

Oh, by the way, caps don't help a thing.
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Old Sep 14, 2007 | 01:23 AM
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Originally Posted by 95bat
"too much" is a matter of opinion

Oh, by the way, caps don't help a thing.
they do help, but if your battery and alternator suck, then yes it will not help much
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Old Sep 14, 2007 | 09:08 AM
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Originally Posted by bmnicolosi
they do help, but if your battery and alternator suck, then yes it will not help much
Nope, they don't help. Do a search on it in here, it has been discussed a couple times.
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Old Sep 14, 2007 | 09:20 AM
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Originally Posted by 95bat
"too much" is a matter of opinion

Oh, by the way, caps don't help a thing.

Yeah, i can agree with that.
Eather way, cap or no cap, that amp the Alpine MRP-M850 should be plenty of power, also its under $300. What is your budget?
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Old Sep 14, 2007 | 10:24 AM
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If you have an adequete alternator with good power wires and grounds a cap is uneccessary. I've never used one even with larger systems I've built. If I can't get it done with alternator power and big 3 upgrade to help make the electrical system more efficient...then I would rather use an additional smaller battery like a Kinetik over a cap.
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Old Sep 14, 2007 | 06:03 PM
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A cap is no where near being called a battery. They are two totally different things.

I think the Alpine amp will be struggling for to power the two type-rs. Considering where gains should be, he'll probably be feeding them under half of what they can safely take. That is quite a bit of power (or lack thereof).
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Old Sep 16, 2007 | 07:10 PM
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Are you running a budget? And what is it?
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Old Sep 17, 2007 | 12:31 AM
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caps dont do ****. i have 2 15's in my t/a off a single JBL amp and of coarse the amp cant really do the setup justice. i have another amp on the way and am afraid it still wont be enough, so ya too much is a matter of opinion. i might do 2 18s, running 1k watts a peice and still no cap. like said, good battery/alt/grounds/power cable, you'll be fine. Big 3 would be good to do, i know my car needs it bad.
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