Question about Alpine Type-R SWR-1242D Car Subwoofer

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What would be a good amplifier for my alpine type r 1242? i already have a kicker kx 120.2 bridge, so its pushing 120 rms, and let me tell you it hits hard, but the sub wants more, its 500 rms, so what amp should i get, would a ultra linear 502 be ok?

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Re: What would be a good amplifier for my alpine type r...


Posted on Jan 24, 2008

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I have 3 L7 kicker 15" subs will my audio pipe 1500 watt run them

Well the L7 15'' solo-baric subs are rated at 1000 watts RMS, so that would be 3000 watts of RMS amplifier power you would need to supply to adequately power all of them. I also suggest that an amp capable of producing more power than what is needed is usually better in order to prevent the amplifier from running at maximum capacity for long periods. In short your amplifier will power those subs, however you will only be able to supply 1500 RMS watts to the three subs so you will only be pushing the subs to 50% of their rated capacity while using 100% of amp capacity which will make your amp run "hot" and your subs run "weak", but if you're in a pinch it will work. Your best bet in this situation is to wire the setup so that the subs and amp are operating at minimum ohm stable impendence (usually 2 ohm). Seeing that you have 3 subs begging for 3,000 watts of power and you are only going to give it half of what it wants, I would suggest upgrading the amp or at least buying another one so that you can bridge the wattage and redistribute to all three subs with the correct impendence.

Aug 31, 2015 | Kicker Car Speakers & Subwoofers

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I have a pair of kicker cvr 124 with a kole 1500 watt amp that is bridged to the woofers. the amp is 385 rms at 2 ohms where should the gain be to get the most power without distortion.

When setting your gain you want to set the gain high usually between 75% to 95%. if the gain is low than turning up the volume on your radio will only amplify the distortion coming from the under powered head unit. By turning up the gain you are maximizing the signal that is amplified coming from your head unit

Mar 20, 2011 | Kicker Car Speakers & Subwoofers

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How to wire 2 alpine typre r 1242 to an alpine pdx1000 mono amp??

If they are single voice coil, just hook one up to the amp (bridged) like normal and run a jumper wire from the positive of the sub to the positive of the second one, then do the same for the negative....This will give you a lower ohmage, thus better bass!!!

Oct 19, 2010 | Alpine Type-R SWR-1242D Car Subwoofer

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What size amp do i need to run 4 1000 watt pyle 10's bridged

well first of all you cant bridge subs... you can bridge an amp... and for 2 they are probablly not 1000 watts, make sure you understand RMS and what the sub can ACTUALLY HANDLE properly... i would get a 1000 to 1500 watt RMS that is RMS RMS RMS RMS amp not one that says 2000 watts MAX POWER cuz thats cheap ****... get a kicker JL hifonic alpine or something in that category that actually tells you the TRUE power output of the amp... then run those 4 subs in a parallel circuit so its like really only having 2 subs. make sure then these subs do not run less then 2 ohms at the terminals while in a parallel, then bridge these subs acting as 2 subs not 4 to your TRUE 1000 watt amp and you should have a good powerful system

Mar 19, 2010 | Pyle 10'' Subwoofer Tube w/Amplifier Car...

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I have sony xs-l122p5 and need amplifier to drive it.

bridge the amp one on - one on + this will make amp put out most power

Mar 08, 2010 | Sony XS-L122P5 Car Subwoofer

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I just bought a kicker cvx 12' less than a month ago and im pushing it with a alpine mrp-650 which is rated for 600w rms and the sub is rated for 750 RMS and i only had the amp turned up half way and i...

Yes, only if you can prove it and believe me, they have so many loop holes now that they can pretty much do what they want. The fact is though, the RMS ratings on speakers can vary, but usually mean either Max watts or Normal (constant) listening range, depending on manufacturer. The other thing to mention is, to get the best sound out of your speakers, they say to put exactly half the watts of power to the RMS watts that your speakers are made for, just for future reference. Hope this helps some and good luck!

Mar 08, 2010 | Kicker CompVX CVX122 Subwoofer - 12" Dual...

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if you get the 4ohm you can wire it to run a 2ohm an the kenwood amp will push 900 watts at 2ohms.they say it can push up to 1800 watts,that would be at 1ohm.that kenwood runs 500 at 4ohms an 900 at 2ohm.if you need help wiring the sub or anything else let me know bertman285@hotmail,com Max Power Output 1800W Power Output 4 Ohm [14.4V] 500W x 1 [20-200Hz, 0.5%THD] 2 Ohm [14.4V] 900W x 1 [100Hz, 1.1%THD] Bridged[4 Ohm] -

Oct 09, 2009 | Alpine Type-R SWR-1242D Car Subwoofer

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Knocking noise with my kicker compvr 15"

comp VR 15s are rated @ 500W RMS 1000Peak.
The lanzar vibe amplifier is 2 x 600W RMS at 4 OHMS 2 x 1200W MAX at 4 OHMS 1 x 2400W MAX at 4 OHMS Bridged 2 x 1000W at 2 OHMS RMS.
Your subs are single 4 ohm subs.
If your subs are wired stereo, they both are seeing 600W. (more than the rated RMS)
Chances are, you have them wired parallel to a 2 ohm mono load - of which that amplifier is not rated. In theory, it will produce about 2000W @ 2 ohm mono for a short period of time.
Your amplifier is too powerful for your subs. Turn down the gain setting to 3/4 or purchase better subs. Also be sur the subs are inthe proper enclosure. It sounds as if they are excurting past their linear x-max and colliding with the rear bump plate. This will cause damage down the road if left as is.

Nov 26, 2008 | Kicker CompVR 05CVR84 Car Subwoofer

1 Answer

My subwoofer stops when volume is increased

have u check the radio out do u have an eq

May 19, 2008 | Kicker CVR12 Car Subwoofer

2 Answers


Hi Gott Mudd,


I can relate to feeling it in the bones. You got the stuff to do it.  You should try the Alpine MP3 head units with bass boost, those are bad to the bone.




Amp to Speaker I like to use the code VC for Voice coil, and AO for Amplifier output.  Also + for positive.  If I say VC1-, I am referring to the first connector starting left to right on the Alpine Sub. Now I have not seen a Kicker KX1200.1 amplifier.  All I see are MRA, MRP, or PDX prefix on the part numbers. So take what I am saying as a guess. You may want to revisit looking at the model of the amp to be sure your giving the right information.


We are going for  2 Ohms. Paralleling the two subs, not the voice coils. The voice coils will be series.  Bridge the amp if necessary to get mono channel. only using AO+ and AO- for output.


AO+ to Sub1VC1+

AO+ to Sub2VC1+

Sub1VC1- to Sub1VC2+

Sub2VC1- to Sub2VC2+

AO- to Sub1VC2-

AO- to Sub2VC2- 


Set your Crossover to LPF

Adjust the bass gain down to lowest until you test.

Set the Frequencies to midrange between 40 and 100hz  


Your box can be ported or not. It depends on the space your have.  If you do not have much room, go Enclosed and build a box that the inside space is less than 1 cubic foot.  Make sure you give barely  enough clearance for the speaker to fit.  If you have room, Go with a box and vent it with a 3 inch Vent tube 10 inches long.  

Oct 15, 2007 | Alpine Type-R SWR-1242D Car Subwoofer

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