Help Wiring a Sub [Archive] - FSC

Riggss

11-06-2008, 10:44 PM

alright i have:

AMP:
http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=19645

Sub:
http://www.onlinecarstereo.com/CarAudio/ProductDetail.aspx?ProductID=19482

How should i wire this?
i tried wiring it like this:
http://akamaipix.crutchfield.com/ca/learningcenter/car/subwoofer_wiring/1DVC_4-ohm_mono.jpg

but the amp got a red light and the sub turned off so i am only running it on 1 voice coil right now. how should i wire this? so i have both voice coils?

Riggss

11-06-2008, 10:46 PM

btw i have a MTX 12" too but that is 4 ohms (powered by a seperate MTX amp)... i guess i am trying to get the most power out of the amp/sub buy trying to wire it for 2 ohms..

Hatfieco

11-06-2008, 10:53 PM

You cant have a 2 ohm setup with those two subs. The DA is going to run in either 2 or 8. If the kicker is a dual 4 you can run them both at 8 and then wire them in series to get 4 to your amp. Other wise you will shut your amp down every time. Running them both at 2 ohms and series will put you at .75-1 ohm. You can also run them both at 2 ohms but wire the subs parralel to the amp and still have 4. Just run the DA at 2 ohms it will have more power.

Hatfieco

11-06-2008, 10:54 PM

oh and remember its not all about power two subs at 4 ohms will be louder than 1 sub at 2 ohms strictly on the ammount of air moved. 4ohm will be tighter but the 2 ohm will be better if you are trying to listen to rap or hiphop

rukkuzz71

11-07-2008, 10:04 AM

4ohm will be tighter but the 2 ohm will be better if you are trying to listen to rap or hiphop
:wtf: :think: :dunno:

Riggss

11-07-2008, 02:37 PM

im wiring 2 differnt subs to 2 different amps

the DA sub is hooked up the Kicker amp
(currently running 1 voice coil at 4 ohms, would like to get both voice coils working)

the MTX sub is hooked up to the MTX amp
(is only a SVC andhave no problems with this right now)

could you help re-answer the question?

///M5

11-07-2008, 02:39 PM

Hatfieco

11-07-2008, 06:14 PM

Enlighten...? If all you want is noise then ya go buy a bid audiobahn half ohm stable amp and pound away. If you want it to sound good you dont need tons and tons of power or a super low ohm load.

Hey have you checked to see if the + and - wires are true all the way to the coil? Could be a bad ground, what kind of wires or wiring kit did you use. Ground has to be the same size or bigger than the hot lead. Try hookin the positive from one voice coil to the negative on the other voice coil then your leads from your amp will go in the positive on one coil and negative on another. Ha kinda confusing but hard to draw pictures on here. You can also just run the positive and negative into one coil and then connect the coils + to + and - to -.

Riggss

11-07-2008, 08:12 PM

i already own all of these and they are in my truck right now..
the D1 is a DVC sub and i am looking to get both voice coils going with the kicker amp.

i tried connecting + to + and - to - on the sub and then running to amp.. it ran for like 2 min and then the amp got a red warning light and turned off the sub.. but it says the sub and amp are both 2 ohm compatible so what am i doing wrong?

Hatfieco

11-07-2008, 08:25 PM

Possibly a bad ground. Did the amp get hot at all? It sounds like an impedence problem though. Try going to from one pos to one neg on the coil and then the other pos and neg to your amp.

thunderstruck95

11-07-2008, 08:31 PM

Enlighten...? If all you want is noise then ya go buy a bid audiobahn half ohm stable amp and pound away. If you want it to sound good you dont need tons and tons of power or a super low ohm load.Impedance has nothing to do with sound quality.

i already own all of these and they are in my truck right now..
the D1 is a DVC sub and i am looking to get both voice coils going with the kicker amp.

i tried connecting + to + and - to - on the sub and then running to amp.. it ran for like 2 min and then the amp got a red warning light and turned off the sub.. but it says the sub and amp are both 2 ohm compatible so what am i doing wrong?Try connected the voice coil that was never connected and leave the other disconnected. Does it still shut down?

Hatfieco

11-07-2008, 08:40 PM

[QUOTE=thunderstruck95]Impedance has nothing to do with sound quality.

Then why is that when wired at 8 ohms the base becomes way tighter and wont roll out "bump" nearly as loosely as when wired in 2 ohm?

Good call on checking the other coil though. Could just have a bad sub.

Oh and with that amp I wouldn't go below 4ohms just because it is a class A/B a lot of them say 2 ohm stable but the A/B design is inefficient. I would send that amp back and get a class D if I were you.

rukkuzz71

11-07-2008, 09:10 PM

How do you have it wired? It should look like this.
http://www.the12volt.com/12voltimages/1_4ohm_dvc_2ohm.gif

slidar

11-07-2008, 09:33 PM

[QUOTE=thunderstruck95]Impedance has nothing to do with sound quality.

Then why is that when wired at 8 ohms the base becomes way tighter and wont roll out "bump" nearly as loosely as when wired in 2 ohm?

it doesnt become tighter, it becomes quieter and less "boomy" is what your hearing because you just took away alot of power. 8 ohms is more resistance to the watts therefore lowering watts

Riggss

11-07-2008, 09:42 PM

How do you have it wired? It should look like this.
http://www.the12volt.com/12voltimages/1_4ohm_dvc_2ohm.gif

i tried to wire it like that..

also it doesnt matter what voice coil i connect it to they both work.. just not both together.

i will try again 2 marro at work and see if it still does it.. if it does idk what i should do.. theres no point in having a DVC sub if i can only use 1 coil..

Hatfieco

11-07-2008, 09:45 PM

Static 90

11-07-2008, 11:25 PM

I thought that increasing the ohm load actually produced a cleaner signal to the speaker or something like that? My stereo doesn't become any quieter between 4 and 8 though just alot tighter on the bass and less boomy like you said. Still feels just as powerful though?

You thought wrong. With an 8-load load, you generally get less power than a 4-ohm load. It has nothing to do with tightness of bass. Enclosure design along with sub design- those have to do with tightness of bass.

Hatfieco

11-08-2008, 08:53 AM

No kidding. Increasing resistance reduces power thanks for being a smart ass though I was just wondering what you thought on it. The reason is because when you have a higher impedance the voice coil has more wire then a 2 ohm sub. This raises the inductance of the sub. By raising the inductance you raise the overall sound quality of the sub. This is why most home audio setups are 8 ohms and not lower. You are right that lower resistance is better for current flow and "boomyness" but that is not necessarily a good thing. Less resistance means more current flow. This means your amp will be working harder then an amp with a higher impedance. Also, the efficiency of the amp goes down at a lower impedance.

thunderstruck95

11-08-2008, 10:49 AM

By raising the inductance you raise the overall sound quality of the sub. This is why most home audio setups are 8 ohms and not lower.Where are you getting this crap from? The reason home audio systems use 8ohm and such speakers is because the amplifiers have a higher rail voltage than car amplifiers, so they can produce full power at higher impedances.

crazyboy

11-08-2008, 10:55 AM

:teddy:!!!

Riggss

11-08-2008, 12:21 PM

anybody have any ideas?

what does + to - and + to - on the sub do?

Hatfieco

11-08-2008, 04:43 PM

Alrighty Im done arguing its hard having a battle of wits with an unarmed person. I know my stuff runs perfect, sounds kick ass, wins competition not the phony ass SPL ones either and have repeat customers so you do with it what you will. Not you riggs. If you want to PM and get in touch Ill help ya out.

slidar

11-08-2008, 09:23 PM

not really aruguing with you, just giving you the right facts. some of the stuff you said jus doesnt make sense. if your stuff works and sounds good, thats all that matters. not tryin to start a war with ya

takethisride

11-10-2008, 10:12 PM

if it were me, id take advantage of all my voice coils and just buy a new amp thats 1ohm stable and wire your subs at a 1 ohm impedence :)but that may cost a bit more than youre wanting to spend.. or if you want to take advantage of what you have, you can run it in series at 2ohm with that 300.1 which should do the job ... that amp is only like 120watts at 4ohms which i wouldnt reccomend.. 8ohm isnt going to cut it though....

Riggss

11-11-2008, 07:41 PM

^^^ im trying to wire it up but i am getting a error so how do i wire it?

takethisride

11-11-2008, 09:27 PM

if im not mistaken.. if you have a dual 4ohm sub.. You wire the first 4ohm voice coil + to - and the second 4ohm voice coil + to the + terminal of the box and the - to the - terminal of the box.. do the same for the second sub... heres a horrible quick picture diagram i made.. should be easier to follow..

http://i399.photobucket.com/albums/pp75/B20Chick/wiredsubs.jpg

this should read 2 ohms.. Id meter it to be sure though...if youre wanting to use one terminal on the box, or you only have one terminal you just jump + to + and - to - on the second voice coils and for to the single terminal

Riggss

11-12-2008, 03:39 PM

no i only have 1 DVC sub.....

and a mono amp i have everything listed in the very first post of this thead...

RoLL1n D4rK

11-12-2008, 04:03 PM

RoLL1n D4rK

11-12-2008, 04:04 PM

no i only have 1 DVC sub.....

and a mono amp i have everything listed in the very first post of this thead...

+ to + and - to - and then to there respective outputs on the amp

Riggss

11-12-2008, 05:33 PM

maybe i did something wrong..

ill try it again when i have to take the sub back out in a couple days..

takethisride

11-13-2008, 07:52 AM

jump one voice coil to the other voice coil from + to + and then - to - and go from one voice coil + and - to the box terminal.. that should be 2 ohms

rukkuzz71

11-13-2008, 08:07 AM

Have you checked the sub with a ohms meter? If you have it wired the way I and several others have shown you it should read 2ohms. If it doesn't, you have a bad sub.

Riggss

11-13-2008, 09:28 PM

i am thinking when i was testing it there wasn t enough amps cause i remember the battery was dead.. and i read in the manual that if it goes below 9 amps it will give an error...

i will try again 2 marro and let it play for a while without it screwed in and if it does it again i will just leave it as 1 voice coil...