SUBWOOFER HELP

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Jan 27, 2005
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#1
i got 2 alpine 12s hooked to my car, i got a hifonics 1200 amp hooked to it but
it aint hittin hard like its supposed to be how do i fix that?

and my amp stays on even when the car is off
 
Nov 13, 2006
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#2
what kind of alpine subs? type R, type S, type E or type X? and is your hifionics 1200 2 channel or mono amp? whats the RMS power on it, not the MAX power, because max wattage means nothing.
 

MKB

Sicc OG
Dec 19, 2002
999
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#5
How do you have the subs wired? You can have them at .5, 2, or 8 ohms if they are the 2 ohm voice coils.

You probably connected the remote/antenna wire to the wrong wire. It turns the amp off when the car is off so it needs to be connected to the blue wire in the back of your deck. That wire shuts off when the car is off and tells the amp to shut down so if you connected it to a wire that is hot all the time then the amp will never shut down. You can easily check with a volt meter when the car is off and the amp is on if your getting 12 volts than thats your problem.
 
Jan 27, 2005
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#9
somebody help me with the wires i think i got it all wrong

My car diagram

Radio Constant 12V+ Wire: Yellow/Green
Radio Switched 12V+ Wire: Purple
Radio Ground Wire: Chassis
Radio Illumination Wire: Red/Blue
Antenna Trigger Wire: Green/White
Power Antenna Wire: Green
Front Speaker Size: n/a
Front Speaker Location: n/a
Left Front Speaker Wire (+): Blue/White
Left Front Speaker Wire (-): Blue/Red
Right Front Speaker Wire (+): White/Black
Right Front Speaker Wire (-): Blue/Black
Rear Speaker Size: n/a
Rear Speaker Location: n/a
Left Rear Speaker Wire (+): Green/Yellow
Left Rear Speaker Wire (-): Black/Yellow
Right Rear Speaker Wire (+): Blue
Right Rear Speaker Wire (-): Red

MY STEREO DECK
http://www.zshare.net/image/20439842763e529d/
 

MKB

Sicc OG
Dec 19, 2002
999
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36
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#13
For the sub you should have it hooked up to "Power Antenna Wire: Green" and that should be connected to 3 Remote Turn On Lead (Blue/White). Other than that you just need to connect everything to the corresponding power wire, ground wire and speaker wire. You might want to try and play with the settings on the deck too and make sure that you have the sub on. If you have sub level controls (where you can control the sub settings from the headunit) you should try and get all of those right like the low pass filter and it should have a bass level or something similar. With those subs and that amp your system should pound. I had one type R and it would knock my rearview mirror off.
 
Jan 27, 2005
1,579
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#14
the power antenna wire: green
and
remote turn on lead blue/white
from which wires the car wires? or the stereo wires?



ok cool ima try that ^
but now i got another problem haha

my stereo deck is a alpine cdm-7871
my stereo FM/AM works fine
but when i put in a cd, the stereo button lights go out
and no noise comes out the speakers but it shows on the
stereo screen display that its playing a cd
 
Jan 5, 2006
13,536
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#15
who installed your deck/sound system? sounds like they mighta crossed the wires on the harness even though its hard to do that.. you just match up the colors and splice the wires.
 
Aug 6, 2008
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#17
sounds like u got ripped off, did u get it all from one place??? and when u lookin at watts make sure its r.m.s. watts kuz the word "watts" can be decieveing... match up the r.m.s wattage. it could say 50 billion "watts" and b hella weak

i really dont know much about it, im jus talkin out my ass but i think it may b some truth 2 that shit tho
 

kevp

Sicc OG
Dec 7, 2004
429
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#18
my stereo deck is a alpine cdm-7871
my stereo FM/AM works fine
but when i put in a cd, the stereo button lights go out
and no noise comes out the speakers but it shows on the
stereo screen display that its playing a cd

that is wierd. Take it back to where you bought it...
 
Jun 4, 2004
3,183
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#20
What kid of box? Sealed, Ported, Volume of Box, etc.

Amp Should Be Bridged, Subs should be wired in parallel for 1 ohm.

Also check the crossover settings on your amp, should either have a high pass, low pass or a knob you turn to set your cut off points.

There are a lot of factors that effect your bass.