Running two 12 Lanxar DVC's in enclosed box. 4000 watt 286 VIBE amp. 2 ohm stable. Had voice coils bridged and amp bridged. Thinking this is 1 ohm load.? After losing one sub, removed subwoofers bridged on amp and ran as stereo. Switched 10 gauge wire, one sub plays with same wire, the other doesn't. I hear the scratching noise if I run the speaker wire over the terminal but nothing else. Sub doesn't even sound blown.
Left fuse was blown. Replaced. Same problem. Only thing I haven't done is replace the 60 amp fuse under the hood.
The other subwoofer works fine off the same channel as the one that didn't. Verified channels are fine. What else can I check?
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Re: Lanxar VW12D no sound after excess play
I'm not understanding what you mean by the "Sub doesn't even sound blown" if it doesn't play at all. One thing you can check is if you gently push in on the cone you shouldn't hear anything, if you hear a scratching noise and can feel resistance then you have a problem. If you have an OHM meter, you can check the voice coil impedance, it is a down and dirty way of checking to see if it is good or not. Measure all of the voice coils that you have and they should all read about the same, not necessarily exactly the same but pretty close. This test should tell you a lot. If it seems to test out fine there is something wrong else where. Let me know if you need more help. -Andrew Hawkins
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If you wire 2 ohm dvc speaker parallel that would give you a 1 ohm load. If your amp is only 2 ohm stable that would not work. You would have to wire the speaker in series giving you a 4 ohm load. Then you can bridge the 4 channels into 2 with each speaker running at 4 ohms.
If you want to run a 2 ohm load use all 4 channels on amp and speakers. No need to bridge.
For 2 ohm DVC:
Parallel = connect both + and - together. = 1 ohm
Series = connect + from 1 channel to - from the other channel. = 4 ohm.
for your subs and amp the best way would be for the speakers to be wired in series1ch (mono or bridged)to have a 4 ohm load to your amp stable at 2 ohms
see pic for wiring diagram for 2 1 ohm dvc subs wired in series.
you will need more than one speaker wire for wiring the subwoofers coils(positive & negative terminals) together
hope this helps :~)
Depending on the PA FUBAR you have. The voice coil on those subs are DVC. Dual Voice Coil. You need to know a couple things. What kind of amp are you going to run on it. And what is the resistance (OHM) rating of each voice coil. MY two 12's are dual 4 ohm. Meaning that there are essentially 4 speakers to hook up. My amp currently is not 2 ohm stable in bridged. So what I did is run each speaker in parallel (red2red,black2black) then run to the box terminal. So now the dual 4 ohm voice coils are basically 2 ohm. I have 2 speakers. Now I hook the box up in series. To bring the now two 2 ohm speakers into one 4 ohm speaker. This is called series/parallel setup. My amp sees this box as 1 channel @ 4ohms. The downfall to this is the output of the amp is divided up into each speaker. So instead of sending all 1400 watts to one sub. I will send 700 to each sub. But here is a catch. even though each speaker is half the total wattage it will still be 3db louder. Meaning it will be as loud as 1 sub running 1400 watts. To conclude i need to know how many of those subs you are going to run on the amp.. And the model number of the amp so I can match up your wiring.
It depends on how long you plan on running your amp when you listen to your music. If you like it loud for a long time, I would kep our speaker load at 2 ohms to keep your amp cooler. If its for car audio competitions where it wont play for so long, ! ohm would give you higher output but heat up your amp faster. Are the subs 2 ohms at each voice coil or 4 ohms? Bridge your voice coils together in parallel then bridge the 2 speakers together in series. That should work fine for you.
run them straight and dont use the cross over. One speak on right channel and the other on other channel. Then turn up amp settings 7/8 the way up and control the rest from your dvd/cd player. I recommend some monster cable which is very thick. Ground the amp directly to trunk bolts but make sure to scrape the paint off or the connection will be bad. You can also use a cap which will send battery pulses to amp much quicker.
If you have a DVC 4ohm speaker, and you are using both voice coils, the amp is seeing a 2ohm load.
If you bridge the amp, you CAN run both subs as long as the amp is Two Ohms Stable.
Wire each subs voice coils in parallel.(Positive to positve, neg to neg.) (2ohms) each.
Then wire the two subs in series.(Neg from amp to neg of sub one, pos of sub one to neg of sub two. then pos of sub two to pos of amp.
If it sounds too hard, leave it as you are already running the amp at two ohms.
A 4 ohm DVC sub can be wired in series like you described for an 8 ohm load or the voice coils can be wired in parallel for a 2 ohm load.
If your 2-channel amp isn't stable down to 2 ohms when the channels are bridged (most 2-channel amps are only stable to 4 ohms when bridged), you do not want the voice coils paralleled. The amp will overheat, go into protection mode, and eventually fail completely. A sub with 2 ohm voice coils would be a better fit. That way, you could series the coils for a 4 ohm load and the amp would operate OK with the channels bridged into that load.
But anyway, for the best power from THAT amp to THAT sub, your best wiring solution would be to wire each voice coil to a separate channel. The problem with that is that the signal to each coil needs to be EXACTLY the same or you will have one coil trying to move the cone out while the other one tries to move it in. You can closely approximate identical signals on the output side by using the same input to both channels. Do this by using only one RCA connection (either right or left channel) from your head unit and split it with a "Y" cable.
your probably making your amp run to low ohms if its a 2 channel amp bridged to one channel you can probably only run it at four ohms
Also seeing as your subs are 2ohm dvc you can't wire them individually to 2ohm and use each channel separately. So i'd recommend buying a 2ohm stable monoblock or running it at four ohms. a 1400 watt amp'll still pound at 4ohms and it'll extend your amp's life span
The 2 ohm stable rating on the amp is PER channel meaning that you could effectively hook up a 2 ohm speaker or a 2 ohm load to each channel without the amp getting f"d up-butin bridged mode it will only be 4 ohm stable. to achieve a 4 ohm load with your sub the type x wire the coils in series that will get you at 4 ohms to run in bridged mono .But you will get the exact same amount of power if you wire each coil to one channel of the amp as bridged mono sees the sum of your 2 ohm channels combined-Hope that helps.