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Another System Idea?

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=5960
Printed Date: July 12, 2025 at 12:59 PM


Topic: Another System Idea?

Posted By: carguy411
Subject: Another System Idea?
Date Posted: November 27, 2002 at 3:08 PM

ok i been thinking i wanted to ket the kicker L7 subs and didnt know what size to get and how many. i originally wanted either 2 -12 or 2 -10. now im thinking maybe getting 1- 12 or 1-15 or 2-10.

the reason i m,ight get 1 sub is becasue i can get a good decent amp and put all its power to the 1 sub pushing it to its full potential.

what do you guys think.'

now im still cofussed about what amp to get, and what type of box i was thinking sealed caseu there easyier to build.

as for the amp i was thinking either a kicker, rockford or jlb amp

what do you guys think about all this please help im so confused.

thanks




Replies:

Posted By: bberman1
Date Posted: November 27, 2002 at 3:21 PM
You can get one amp and still push 2 of these to their full potential Are you looking for SQ or SPL? 




Posted By: carguy411
Date Posted: November 27, 2002 at 5:20 PM

im looking for SQ i want clean hard hitting bass. but i dont want to go to crazy. im using the stock altenator with 2 caps and a optima yellow top so i dont want to draw to much.

also i dont know what i should do. can you give me suggestions and which amps to use and a good way to set them up

thanks





Posted By: bberman1
Date Posted: November 27, 2002 at 5:53 PM
If I were you I would go with the 12 although you would get better sq with the 10”. But if you want a good mix of sq and spl go with the 12. It will still sound clean.  Run it in a sealed enclosure (1 cubic foot). As far as amps go I would get the Audiobahn  A12001D $300.00 on eBay which puts out 750 watts @ 2 ohms or 1200 @ 1ohm.  This amp will run your current sub as well as give you room to add one more sub if you choose.  Your sub is rated at 750 watts and if you wire it in parallel it will give a 2 ohm load. hope this helps let us know what you choose to do!




Posted By: carguy411
Date Posted: November 28, 2002 at 5:59 PM

ok one other question when u say get the 1-12 in a sealed box. also how is that audiobhan amp is it gonna take to much juice from my cars altenator, thats what im really worried about .casue i have an alpine cva1003 which draws alot when the screens open,a indash dvd,hid conversion kit, whelen strobe lights,and a few other things that draw, i have ayellow top and 1 cap now but i think when i change the system im gonna get another 1 farad cap. what do you think that amp with 2 1 farad caps will hold with out drawing to much

sorry for all the questions but i just dont want to spend all this money and do all this work and then i cant use it

thanks





Posted By: carguy411
Date Posted: November 29, 2002 at 12:59 AM

also what do you think of a rockford amp, or should i stay with the audiobahn,and i saw a sealed enclosure 1 was .88cuft,  the other was 1.27 cuft. or just go with a solid 1 cuft.

will those other boxes make a big difference or will they make them worse

thanks





Posted By: bberman1
Date Posted: November 29, 2002 at 4:47 PM
What kind of car do you have and do you know how many amps your alternator puts out? From what you list above you’re not drawing that much power but you say and a few other things? You say you already have one capacitor what do you currently have in your audio setup?
As far as the enclosure goes you can go with either enclosure. The recommended enclosure size is between .88-2.0 cu/ft. When it comes to the amp I like the Audiobahn they are very strong and I have always been happy with them.  




Posted By: carguy411
Date Posted: November 29, 2002 at 4:58 PM

its foing in my 2001 nissan xterra, i dont know how many amps the stock altenator puts out.i have an us acoustic us800d amp with 2 10" audiobahn subs with the 1 farad cap. and the lights or anything dont dim at all. but i ant to put a second one it to be safe. im just not sure how mych the audiobahn amps draw what you think?

let me know

thanks alot





Posted By: bberman1
Date Posted: November 29, 2002 at 5:21 PM
Are you replacing the us800d amp and 2 10’ inch subs with the new setup? IF you are then don’t stress out about your power. However you might want to move up to a 1.5 or 2 farad cap.




Posted By: pervitizm
Date Posted: November 29, 2002 at 6:41 PM

I have an 15 L5 running on a Lighting Audio 1000D storm mono block. I'm pushing a good 1100 rms to it cause I have it at 2ohms. These subs will pound the hell out of you. So if you do decide to go with one, then I would go with either the 12 L7 or the 15'L7. The 12 however will give you better sound quality than the 15, but if you want it to be really really heart pounding then I would suggest you put the sub(s) in a ported enclosure.

I agree with BBerman1, if your not planning on getting a bigger alternator right now, then I would step up to bigger cap. However I would suggest that you seriously get a bigger alternator. Just so you won't have to worry about it in the future, because your gonna want to replace all the equipment that you have now with better and more powerful stuff. Not to mention that you've got a lot of gear right now and you might be straining the hell out of the current alternator that you have right now.  If your gonna go with just one sub, then the us800d should be good enough to power the hell out of 1 sub, maybe even good enought to hit two off decent. I would try the new L's on that us800 amp first and see how they sound, who know maybe you might like the way that the amp sound with those subs and that way you can save money on getting another amp and instead get a bigger alternator? Just my 2 cents

Pervy



-------------
live & die 4 tha luv of BASS!!!!




Posted By: carguy411
Date Posted: December 01, 2002 at 1:36 AM

you really think that amp will hit that 12 l7 hard. i have it wired to 2 10" audiobahns right now and it hits but not the way i want. it gets sloppy sometimes ,thats y i wanted a diff anp and set up all together..can i wire that L7 to a 1 ohm load casue that amp can handle it.and about the caps im gonna put 2 -1farad caps in the reason i dont want to upgrade the altenator is that i leased my truck and when this is over im gonna buy a brand newone, so wheni buy my new truck ill upgrade the altenator with nor prob but right nw i dondt think im gonna.

how much do you think it is to upgrade and install and altenator??

thanks guys let me know





Posted By: carguy411
Date Posted: December 01, 2002 at 1:48 AM

sorry guys my amp cant handle a 1 ohm load its 2ohm stable 600wattsx1. you think that will pus the 1 -12

i want to push it its full potential what you think??

thanks





Posted By: bberman1
Date Posted: December 01, 2002 at 11:43 AM
Do you have specs for your amp? If so what’s the RMS @ 2 ohms X1 channel




Posted By: carguy411
Date Posted: December 01, 2002 at 11:38 PM

us acoustics us800d

its 600 watts x1 at 2 ohm





Posted By: pervitizm
Date Posted: December 01, 2002 at 11:41 PM

Alternator upgrades depend on some certian factors. A) Are you going to buy a custom aftermarket alternator. B) Have the existing alternator rebuild.

Custom aftermarket alternator, usually those made by such companies like stinger & ohio generator will run you up in the high $100 range. I know for my 86 Dodge Ramcharger, I was looking at about $700 for a 160 amp alternator.  The upside to these alternators are that they're very relaible.  The downside, they'er gonna cost ya a lot of money

For a rebulid alternator, usually there cheaper because they just rebuild your current alternator to run at a higher ampage than before. The downside is that most alternator can't be rebuild to run higher because the housing may be to small to handle the extra coiling, then the life expectance of a rebuild alternator  is lessened becuase your having that alternator produce more power than what it was originally suppose to.  Again looking to have this done on my truck, but the alternator that's standard on my truck was too small to coil up to 160, so I had to have an alternator off a ford ambulance custom built with special bracing to mount it into the original amps postions. All in all I was looking at about $200 for the total job.

I haven't made my decision as to which way I'm gonna go for now, but I do know  that I will most likely go towards the aftermarket alternator in the future cause I plan on rebuilding the whole engine, but as of right now I think I'm gonna go with the rebuild one. Just because I know that I'll be able to have the extra head room now, without having to spend over a half a grand that I don't have.

If I were you, I would shop around to local audio shops, and machine shops that work on alternator. Who knows what kind of deals you could come up with.



-------------
live & die 4 tha luv of BASS!!!!




Posted By: pervitizm
Date Posted: December 01, 2002 at 11:55 PM

US acoustics,

I have heard  good things about this amp. I would try it out first at the 20hm load to see how it sounds.  But if you have the money, I would look at amps from such brands as, MTX, JL Audio, JBL, Xant, Kicker, and DEI. But be warned, the high powered mono block digital amp form any of these companies will cost ya a lot of cash.



-------------
live & die 4 tha luv of BASS!!!!




Posted By: carguy411
Date Posted: December 02, 2002 at 10:06 AM

yeah well im still debating on what to do.

so far i know that im gonna swtich the system and get 1 Kicker  S12L7 in a sealed box around 1 cuft. next im gonna change my 1 farad capr to a 2farad cap. my amp pushed the 2 audiobahns now but like i said sometimes they crap out and i dont liike that. i want good hard hitting clean bass..

the best way to somewhat describe what i want is if you ever heard the fosgate xterra. i heard it once and i almost creamed my pants. it was hitting so hard but you didnt heard the subs hitting like normal but you sure felt it. i dont know if you understand what i mean but thats somewhat the way i want it . i knowit wont be exactly like it but i would like to try for it a litle. please let me know what you guys think . if u think my amp can handle it ill try it first but if it cant i avent decided on an amp yet

 thanks for your help.





Posted By: bberman1
Date Posted: December 02, 2002 at 10:30 AM
As far as the US800d I would try it and if you feel like you can get more out of the sub then change out the amp. For alternators the following are all good sites. I have experience with the following companies and can say that I have never had a problem with any of there alternators and they cost much less then those big names.
https://www.wranglernw.com
https://www.mralternator.com




Posted By: carguy411
Date Posted: December 02, 2002 at 10:52 AM

k you guys are gonna kill me but what about a 15 instead of a 12 for what i want. bette or worse? will it still work wit hthe us acoustics amp?

i found a pretty good deal only a little more than the 12 please let me know

thanks for all your help





Posted By: bberman1
Date Posted: December 02, 2002 at 1:45 PM
The amp can barely push the 12 it will push the 15 but the power will not be clean and you will not get its full potential. With the 15 you will loose some sq but it will put out lower deep bass that you will feel. If you’re considering the 15 then go for it because if you get the 12 then all you’re going to think about is that 15 and what it would have sounded like. Look if you have too much bass you can always turn it down but it doesn’t work the other way around. My suggestion to you would be to go to a shop that has the 12 and the 15 and listen to them both and see which one sounds best to you. 




Posted By: carguy411
Date Posted: December 02, 2002 at 2:09 PM

man im really confused now.

i want to get whatever is gonna give me a hard hitting clean bass. if the amp i have now is gonna push the 12 and its going to sound really good then ill just get the 12. but if i need a new amp for the 15 and its going to sound a little more messy tha nthe 12 then just for get that. i need clean sounding hard hitting bass. i dont care which one i get but it had to sound good. i thik the 12 probably sound better with my amp for now???

right?

thanks





Posted By: bberman1
Date Posted: December 02, 2002 at 2:41 PM
correct Go with the 12 and your amp and don’t confuse yourself




Posted By: carguy411
Date Posted: December 02, 2002 at 5:29 PM

k lol

thanks guys as of right now i think this is what im gonna do. i just hope i dont go thru all this and it sounds the same or worse??





Posted By: bberman1
Date Posted: December 02, 2002 at 7:52 PM
Have you heard what the sub sounds like before? If not go to a local shop and listen to it before you make your decision




Posted By: carguy411
Date Posted: December 02, 2002 at 11:17 PM
no i never heard them but everyone is telling me that they are really good and hit hard.you dont think so?




Posted By: bberman1
Date Posted: December 03, 2002 at 11:23 AM
I think its pretty good, But what I think could sound good someone else could think sounds horrible. I think that you should listen to it before you buy it so you can see if you like the way they sound so in the end you don’t end up with something you think sounds bad. 




Posted By: carguy411
Date Posted: December 04, 2002 at 10:34 AM

sorry but i did it again. i thought of anther thing

what do you guys think about the alpine subs any good. i know theres a few diff models and im not sure which to look at but prob ones in the same price . range as the L7 either 2 10's or 1 -12

what do you think of that or just stay with the kicker

thanks sorry for antoher idea





Posted By: F4Pilot
Date Posted: December 04, 2002 at 10:47 AM

Youre probably not worried about space - but if you are...Check out the Image Dynamics IDQ series subs.  I have a 12" IDQ and it sounds awesome in a 1cf  fiberglass/mdf enclosure with only 200w @ 2ohms.  Also, check out the specs on the JL Audio 1 channel amps.  You CANNOT go wrong with this setup.  Fosgate also gives you good, raw, hard-hitting power for bass - dont reccommend for sound quality.

https://www.jlaudio.com/amps/5001.html

https://www.imagedynamicsusa.com/website/products/idq.html



-------------
02 Odyssey / 99 F4




Posted By: carguy411
Date Posted: December 04, 2002 at 11:05 AM

i dont know i was really thinking of either alpine or kicker. i always se these used

also what you guys think of getting the Alpine MRD-M500  as an amp instead of my ua acoustic amp to push either the  kicker or the alpine subs

thanks





Posted By: carguy411
Date Posted: December 04, 2002 at 2:05 PM

ok i figured it  out  the other way

1-12 or 2-10 alpine type r's(i think theses are the better ones)

with an alpine mrd-m500 amp

or the kicker l7 set up that we talked about before

thanks let me know what you guys think





Posted By: bberman1
Date Posted: December 04, 2002 at 2:26 PM

Either one will sound good but I would go with 2 10’s over a 12. As far as kicker VS alpine just go and listen to your two options to see which one sounds better to you and then make your final decision.





Posted By: carguy411
Date Posted: December 04, 2002 at 2:46 PM
k thanks what do you think od that alpine amp though to power a kicker 12" l7??




Posted By: carguy411
Date Posted: December 04, 2002 at 10:43 PM

ok heres my final set up that im gonna go with:

1- kicker 12" L7in a sealed 1 cuft enclosure

1- alpine MRD-M500 mono Amp (250 watts rms x1 @ 4ohm  ; 500 watts rms  x1 @2ohms    900 watts max)

1- 2farad cap

now only thing is how do i wire the sub. i can wire it to 2 ohms right?i think the sub has a dual 4 ohm voice coil which means i can get it to 2 ohms , i souldnt buy the dual 2 ohm voice coil right casue that will give me 1 ohm load nad that amp cant handle that?

please let me know if i am right and what you think of the system idea before i buy anything

thansk for all your help





Posted By: bberman1
Date Posted: December 04, 2002 at 10:57 PM
Sounds good and you are correct that you need the 4 ohm sub to give you the 2 ohm load. Here is a diagram that shows you how to hook the sub up to the amp. (use the bottom diagram) https://www.audiobahninc.com/tech/parallel-parallel-dual-4.gif  But I do think that you should go to a shop and listen to both the 10 and the 12 so you can be sure that you are happy with what you purchase.




Posted By: carguy411
Date Posted: December 04, 2002 at 11:06 PM

i think i will i just have to find somewhere around here that has them to listen too. i live in ny and most of the time all the hoopties just dont give a crap aboutthere cars and through any $hit system in there trunk that they get from like circuity city or somethin on sale.

but i think thats what im def gonna go with

you have any experience with that alpine amp?

i would like to go all alpine but i dont know about the subs. i laready have the cva1003, cd changer, getting the xm and i want to change my dvd player i have now to alpine

its a great company but expensive

thnanks





Posted By: carguy411
Date Posted: December 05, 2002 at 8:22 AM

ok to add one thing to the last post and i think then i have no more questions

the alpine  amp is all set digital. now does this mean every time in un hook the amp i have to redo all my settings or is there a memeory to it. casue i use my truck alot for taking stuff for work an sometime i have to take out my system thats y i hook it up with all power quick disconnects.

also the l7 uses a sealed enclosure from .88- 1.5 cuft i think. now does it really make a big diff if i chose one 1 cuft dimension over the other or is it just more of a safe range to keep it in

please let me know on theses lst few questions thanks





Posted By: bberman1
Date Posted: December 05, 2002 at 9:10 AM
In Southern California where I live it seams like every one has a system and a good portion of those people put a lot of money into them  But I think out here we have one of the best markets for customizing cars. But any way once you disconnect the power to it yes it will loose its settings. As far as the box goes that is the range that the sub is designed to run in. I would try to keep it as close to if not 1cu/ft if possible.




Posted By: carguy411
Date Posted: December 05, 2002 at 9:53 PM

ok thanks

now i have a problem again i dont want to have to keep resettingthe amps settings everytime i unhook it now what amp should i get

a kicker or a rockford i want one of those 2 but which and suggestions?

thanks





Posted By: bberman1
Date Posted: December 05, 2002 at 10:44 PM
Go with the fosgate if you get the Power bd500.1 it has the same power specs as the Alpine




Posted By: carguy411
Date Posted: December 05, 2002 at 11:53 PM

o yeah kool

and it pushes more than 500 right i know fosgate is underated but i want the most i can get out of that 1 sub.

does it draw alot of current?

what if i go to the next one higher i think its the 800.1 right?

thanks





Posted By: carguy411
Date Posted: December 06, 2002 at 9:10 AM

o yeah kool

and it pushes more than 500 right i know fosgate is underated but i want the most i can get out of that 1 sub.

does it draw alot of current?

what if i go to the next one higher i think its the 800.1 right?





Posted By: bberman1
Date Posted: December 06, 2002 at 9:45 AM
If you want the max out of the L7 its power rating is 750 watts rms you only plan on running 500 so you might want to look at a amp with more power




Posted By: carguy411
Date Posted: December 06, 2002 at 10:04 AM

i looked in to the rockfor amps

i was thinking the power 1000.1 i think thtats way enough itssays 1000wats at 2ohms and that what im runnig and those amps are underrated

is that a good choice





Posted By: bberman1
Date Posted: December 06, 2002 at 10:47 AM
That’s a little more power than you need but would defiantly push that sub.  That is a   strong amp but as long as you properly adjust the gains it will not harm your sub. but it sounds good




Posted By: carguy411
Date Posted: December 06, 2002 at 2:55 PM

ok koool

any tips on adjusting the right way or just bring the gains upslowly?

thanks





Posted By: bberman1
Date Posted: December 06, 2002 at 3:53 PM
Turn the gain down all the way then turn up the volume on the head to 60%. Then slowly turn up the gain till you start to hear distortion then back off the gain a little and it will be set.




Posted By: carguy411
Date Posted: December 07, 2002 at 1:08 AM

thats what i usually do

but should i leave the bass on the radio on "0" or put it up alittle the alpine cva1003 goes upto and minus 7.

also it has a subwoofer out  conmtrol level which goes to 15/ put that on like half or 10 or so?

thanks





Posted By: bberman1
Date Posted: December 07, 2002 at 10:39 AM
I would run them at about half way and if you start to hear any kind off distortion turn them down a little





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