subs and amp
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=33525
Printed Date: May 19, 2024 at 2:02 PM
Topic: subs and amp
Posted By: AJRXtreme
Subject: subs and amp
Date Posted: June 08, 2004 at 4:14 PM
I have just got my system and dont have any idea how to put in my subs and amp. I already put in my head unit and speakers. I have a 1000 WATT LEGACY LA770 2CH CAR AMP and 2 12 inch audiobahn AW1251T subwoofers 1600 watts in a box enclosure. I would pay for pros to put them in but they charge way too much so i wanted to know if anyone knew how to put this stuff together. I am putting all this in my expedition.
Replies:
Posted By: chasesaccessori
Date Posted: June 08, 2004 at 5:27 PM
How much is too much? How much is your expedition worth to you if somthing goes wrong? Even quick and dirty it should only cost you around $100.
Just mount the amp to the back of the box, run power wire fused at battery to amp. Ground to a good ground near the amp. run your RCA's and turn on wire from your head unit to the amp. Wire the speakers to the amp and your done.
you can always do tricker stuff though.
-------------
(owner/installer)
Chase's Accessories
Ridgecrest, CA
in business since 92
Posted By: casedeez
Date Posted: June 08, 2004 at 5:31 PM
Im curious as to why you call it your "turn on" wire.
Posted By: djMINIoompa
Date Posted: June 08, 2004 at 5:38 PM
I'm not sure how much of a newbie you are but here's my 2 cents. First, you need power. Connect it to your battery terminal, using 4 ga. wire. Run it through the fire wall...via drilling a hole or going through some grommet. Then pull up the trim on the floor and try to tuck it in there. Try to keep the wire from view at all times. Next, you need to run RCA cables and a remote wire from the back of the head unit. Once again, preferably on the opposite side as the power, run the RCA and remote under the trim plastic pieces. Those are the only wires you need to run from the fron to the back. The rest is done back there. Next, you need to get a good ground, preferably using the same 4ga. wire and close the the amp. Be sure its connected to a solid piece of metal. If there is any paint, scrap it off to get a better connection. Then, match up the RCA, power, ground, remote and speaker wires in the apporpriate slots on your amp. This should be about it. The short the wires, the more efficient they run, so make your ground as close to the amp as possible and use the same ga. wire for the ground as you used for the power. I hope this helps, post any more questions if you have them.
Posted By: chasesaccessori
Date Posted: June 08, 2004 at 5:48 PM
casedeez wrote:
Im curious as to why you call it your "turn on" wire.
Ok. Is "Remote" more PC for you?
I've been installing since the old school. They used to call the remote turn on lead just "turn on" lead. In fact I still have a piece of ancient history sitting on a shelf in my garage with the wire labeled from the MFG as just "turn on". Neadless to say, thats what is stuck with me. ------------- (owner/installer)
Chase's Accessories
Ridgecrest, CA
in business since 92
Posted By: customsuburb
Date Posted: June 08, 2004 at 7:52 PM
Make sure to set the gain correctly on your amp, because it will probobly put out only 200 to 300 watts RMS (if your 1000 watt listing above is supposed to be an RMS rating).
Posted By: AJRXtreme
Date Posted: June 08, 2004 at 7:59 PM
WOW thankyou guys so much
-------------
03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: Ravendarat
Date Posted: June 08, 2004 at 8:19 PM
Do you know what a good ground is? If not then better say something now so we can tell you. I also have to point out that I charge 60 bucks canadian to do the work you listed plus you amp kit so I kinda wanted to know what they are charging you where you live.
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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer
Posted By: stevdart
Date Posted: June 08, 2004 at 8:22 PM
You get somebody good and that's damn well worth 60 bucks for that job.
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Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
Posted By: AJRXtreme
Date Posted: June 08, 2004 at 9:30 PM
I got a Legacy LAMP4 1600 Watt 4 Gauge Car Amp Wiring Kit for the amp and subs and i wanted to know if this was right for the subs and amp i have. i also wanted to know what "LAMP4" and "4 gauge" means. I am really new to all this car audio stuff so speak to me in newb terms. thanks a whole bunch! ------------- 03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: AJRXtreme
Date Posted: June 08, 2004 at 9:35 PM
in FL they would charge me $100 for the whole thing but ive spent enough money as it is
-------------
03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: bruno71088
Date Posted: June 08, 2004 at 9:37 PM
4 gauge is the thikness of the wire the smaller the number the thinker the wire
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Posted By: customsuburb
Date Posted: June 08, 2004 at 9:37 PM
AJRXtreme wrote:
I got a Legacy LAMP4 1600 Watt 4 Gauge Car Amp Wiring Kit for the amp and subs and i wanted to know if this was right for the subs and amp i have. i also wanted to know what "LAMP4" and "4 gauge" means. I am really new to all this car audio stuff so speak to me in newb terms. thanks a whole bunch!
I think it means made from the finest lamp cord. Just joking. 4 gauge is the size of the wire, lower gauges of wire are thicker.
Posted By: AJRXtreme
Date Posted: June 08, 2004 at 9:38 PM
so is 4 guage any good?
-------------
03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: AJRXtreme
Date Posted: June 08, 2004 at 9:42 PM
is 4 guage the best?
-------------
03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: stevdart
Date Posted: June 08, 2004 at 9:43 PM
djMINIoompa wrote:
First, you need power. Connect it to your battery terminal, using 4 ga. wire...
Pay attention, class. ------------- Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.
Posted By: bruno71088
Date Posted: June 08, 2004 at 9:43 PM
ya 4 gauge is good especially for that, hey im in florida too were in florida are u
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Posted By: AJRXtreme
Date Posted: June 08, 2004 at 9:49 PM
i live in melbourne
-------------
03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: bruno71088
Date Posted: June 08, 2004 at 9:55 PM
oh thats far i was there this weekend surfing at sabastion but im in pinellas park i would help u do that for free but thats pretty far away
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Posted By: AJRXtreme
Date Posted: June 08, 2004 at 10:08 PM
its all good, my dad will probably help me out with it. Now that i know the info on how to do it i will be able to figure everything out.
-------------
03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: AJRXtreme
Date Posted: June 08, 2004 at 10:10 PM
will i need a capacitor for my system. I hear the head lights dim if you dont have one. ------------- 03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: bruno71088
Date Posted: June 08, 2004 at 10:16 PM
you can install the system and see what happens my system is just fine without one
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Posted By: AJRXtreme
Date Posted: June 08, 2004 at 10:17 PM
hey bruno, what kind of system do you have?
-------------
03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: Ravendarat
Date Posted: June 08, 2004 at 10:18 PM
I gotta point out that that amp with those subs is a piss poor match. Pardon the bluntness of my comment but its true.Now I know you are asking yourself, Rat why would you say that and in response I say because the amp is not two ohm mono stable and thats how those subs should be wired up. Since it cannot handle this load you will have to run it at 4 ohm stereo which means at very best you will get 100 watts rms per sub. Thats gonna leave those subs grossly underpowered. Its like the French Invading the USA. They can do it but its only a matter of time until the methods produce undesired results. Also you shouldnt need a cap becuase that amp wont draw enough current to do any major suffication. I think the max draw on those things is like 40 amps or so, if thats the case then you should be fine.
-------------
double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer
Posted By: AJRXtreme
Date Posted: June 08, 2004 at 10:22 PM
so should i just send back the amp and get a better one? I need you to explain all the ohm stuff to me and max draw, i was lost when you said all that.
-------------
03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: bruno71088
Date Posted: June 08, 2004 at 10:23 PM
i have 2 mtx thunder 8000's running off 2 pioneer 760 watt amps (gm-x862) i have one sub hooked up to each amp
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Posted By: bruno71088
Date Posted: June 08, 2004 at 10:24 PM
yea send the amp back u wont be happy with it either way
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Posted By: AJRXtreme
Date Posted: June 08, 2004 at 10:40 PM
so anyone have any recomendations on what amp i should get for the audiobahn subs?
-------------
03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: AJRXtreme
Date Posted: June 08, 2004 at 10:45 PM
2 Channel Amplification 2 x 500 Watts Output 1 x 1000 Watts Bridged Output 1000 Watts Total Output Polished Chrome Finish w/Plexiglass Panel Remote Control Bass Boost (0-+1808 @ 60Hz) Fully Adjustable Electronic Crossover Network Soft Turn On/Off Circuit 2 Ohm Stereo Stable Bridgeable Into 4 Ohms MOSFET PWM Power Supplies Variable Gain Control Remote Turn On/Off Hi/Low Level Inputs Power On LED Indicator LED Protection Indicator Dimensions: 10.4"W x 2.6"H x 14"L Weight: 9.6lbThis is the info on the amp, just to make sure is this going to satisfy me with the subs? ------------- 03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: AJRXtreme
Date Posted: June 08, 2004 at 10:50 PM
PLEASEEEEEEE
-------------
03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: Ravendarat
Date Posted: June 08, 2004 at 10:51 PM
no good dude, not gonna do it. If you wanna get recomendations I want to know what kinda money you wanna spend first, then I can tell you what your best bet is. If you say little as possible so help me I am gonna boycott you. I hate that damn answer :)
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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer
Posted By: AJRXtreme
Date Posted: June 08, 2004 at 10:57 PM
i am looking to spend around $200-300 on this amp.
-------------
03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: casedeez
Date Posted: June 08, 2004 at 11:29 PM
chasesaccessori-- Cool man, I wasnt tryin to dog on ya or nothin. Just curious bout what it was bout. Know what im talkin bout.
Posted By: Ravendarat
Date Posted: June 09, 2004 at 8:20 AM
K-Cool, If you look around on the Net you can find a JBL 1200.1 in that price range. Its gonna be lots of realistic power for those subs and you already have the right amp kit for it. Id try to track down that one because the sound good and are as reliable as anyhing else your gonna find.
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double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer
Posted By: AJRXtreme
Date Posted: June 09, 2004 at 2:21 PM
i think im gonna go with the audiobahn A8002T 2/1 CHANNEL AMP 800 WATTS. If anyone can tell me if this is ok for my 1600 watt audiobahn AW1251T 2 12 inch subs. I want to get the most power out of my subs. ------------- 03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: AJRXtreme
Date Posted: June 09, 2004 at 2:38 PM
TWO 12" High Performance Audiobahn AW1251T Subwoofers 800-watts MAX Power Handling EACH SUB (1600W TOTAL) 400-watts R.M.S. Power Handling EACH SUB (800W RMS TOTAL) 45oz Strontium Magnet Freq Response: 30Hz - 1kHz Efficiency: 91.1dB Phat Foam Surround Poly-Coated 2 Layer Non Pressed Non Transfer KM3 Coated-Cone for Virtually No Cone Distortion 2" four Layer Black Aluminum Voice Coil Nice Dual 4 Ohm Voice Coils The Mounting Dimensions: Depth; 5 1/4" Hole; 10 7/8" Diameter; 12 1/2" This is my subs specification, i need to know exactly which amp i should get to handle this power.
------------- 03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: customsuburb
Date Posted: June 09, 2004 at 3:16 PM
NO, that Audiobahn amp would work, but its on ebay, and its audiobahn. Listen to Ravendart and go with the JBL BP-1200.1. It would blow that audiobahn amp away and is way better quality wise also. You can either wire those subs for 4 ohms or 1 ohm. I would wire them in 4 ohms, because those audiobahn subs cannot handle 600 watts RMS each (they would be getting around 300 watts RMS at 4 ohms each, but that amp is underated so probobly a little more).
Posted By: skylark
Date Posted: June 09, 2004 at 4:13 PM
not to be downing anybody but that jbl bp 1200.1 will blow them audiobahns up and i should know because i have 2 of them amps running 6 kicker solo baric l7 15's. if anything get the jbl bp 600.1 amp and you will be all right.
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goingcrazyonsound
Posted By: customsuburb
Date Posted: June 09, 2004 at 4:28 PM
He will be fine is he wires his subs for 4 ohms. Each sub will be getting 300 watts (which should be about all those subs can actually take).
Posted By: skylark
Date Posted: June 09, 2004 at 4:31 PM
true but from my own personal experience i think the lower line of audiobahn overstates their rms but they do put out spl. Come to think about ya get that amp because your gonna want to upgrade your subs to something better because you got to start somewhere.
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goingcrazyonsound
Posted By: AJRXtreme
Date Posted: June 09, 2004 at 9:54 PM
alrite i found this amp for a pretty good price. https://cgi.ebay.com/ebaymotors/dll?ViewItem&category=38638&item=7904636544&rd=1 I wanted to know if it will power my subs. Thanks ------------- 03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: Ravendarat
Date Posted: June 09, 2004 at 10:49 PM
NO Bad Idea, still not gonna be enough power and its still gonna crap out way sooner than you will like.
-------------
double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer
Posted By: Ravendarat
Date Posted: June 09, 2004 at 11:22 PM
Alright Ill make this easy. All of these amps fall into the 200-300 dollar range and anyone of them would work awsome for you, most are new but at least one is used. https://cgi.ebay.com/dll?ViewItem&category=18797&item=5703403674&rd=1 https://cgi.ebay.com/dll?ViewItem&category=18797&item=5702826085&rd=1 https://cgi.ebay.com/dll?ViewItem&category=18797&item=5703368439&rd=1 https://cgi.ebay.com/dll?ViewItem&category=64572&item=5703368396&rd=1 Those are real amps and there power rating are fairly legit and will make those subs move to there full potential, or at least as close to full potential as a newbie should have it. ------------- double-secret reverse-osmosis speaker-cone-induced high-level interference distortion, Its a killer
Posted By: AJRXtreme
Date Posted: June 10, 2004 at 7:44 AM
alright guys thankyou a buunch for all the help
-------------
03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: customsuburb
Date Posted: June 10, 2004 at 8:49 AM
Just a note: you can buy the first amp he listed on sounddomain.com for the same price, except you get a warranty.
Posted By: AJRXtreme
Date Posted: June 10, 2004 at 3:21 PM
SWEET!! thank you very much
-------------
03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: AJRXtreme
Date Posted: June 10, 2004 at 3:58 PM
I looked at sounddomain.com and they are selling the JBL 1200.1 for $299.99. They are also selling the JBL 600.1 for $219.99. Im thinking i should get the JBL 600.1. What do you guys think?
-------------
03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004
Posted By: pimpincavy
Date Posted: June 10, 2004 at 6:36 PM
If you get the 1200.1 you must make sure you keep the settings on the amp WAY down, and keep the volume at a resonable level or you will risk blowing your subs b/c that is more power then those audiobahns can really handle. On the other hand with the 600.1 you may not be getting enough power to the subs, but I would still recommend the 600.1 unless you, A. know what you are doing when it comes to setting gain and such or B. you are thinking of upgrading to better subs in the near future.
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Posted By: customsuburb
Date Posted: June 10, 2004 at 7:29 PM
Gain isn't a volume control so set it correctly. Also I dont think the BP 1200.1 has a bass boost, and I think he settled on the 600.1 instead, which should be plenty for those subs.
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