Dual Voice Coil Question

usually total, so 300 per coil

good info for newbs https://jlaudio.zendesk.com/hc/en-us/categories/200265750-Car-Audio-Support?mobile_site=false

tones for amp gain setting.. https://www.realmofexcursion.com/downloads.htm

Power ratings are always the total capability of all voice coils. 

one dual 4 om sub wiring diagram to a 2 ohm final load

https://www.the12volt.com/caraudio/subwoofer-wiring-diagrams.asp?Q=1&I=42

or a little more power.  headroom is good

what gear you looking at?  what vehicle?

penguinspike said:

Ok, so if I wire the speaker parallel, it will create a 2 ohm load on the amp.  So in theory I should match the amp to the sub at 2 ohm at 600 RMS, correct?  

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Yes, but if you haven't selected an amp yet you might hold off on buying a sub to match impedance to whatever the amp likes.   There's been a couple solid budget 600-800W amps discussed here recently that should do great.

Also "budget" and fiberglass shouldn't be in the same sentence.  It is very expensive to do it right and also very time consuming and requires a fair bit of patience. (sand, bondo, sand, bondo, sand, bondo, sand, paint, sand, paint, wet sand, paint.....)  At least if you want it to look like the stuff you'd see in a magazine.  It's like proper bodywork to get that mirror finish and assuming you're a novice with fiberglass and aren't working off a mold you might even add some more bondo/sand steps to get it really clean before you even touch the paint. 

audiobaun said:

one dual 4 om sub wiring diagram to a 2 ohm final load

https://www.the12volt.com/caraudio/subwoofer-wiring-diagrams.asp?Q=1&I=42

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Yep, that's how my dual VC sub is wired. Sounds great!

John Kuthe...

penguinspike said:

It will not be anything like in a magazine.  I was planning on getting it formed and fairly smooth, then just covering it in a fabric that matched my interior. 

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It will still take a lot of material to build it thick enough to not flex and even under carpet you'll want to get it relatively smooth which will take some doing.   Not to discourage you, but don't expect it to be cheap and be ready to invest a lot of time into it.

penguinspike said:

I know, I've worked with fiberglass before it *****.  My enclosure options are either:  

1. custom make one out of fiberglass to fit in a certain crevasse in my car

2. cut out part of the factory plastic trim and try to build a wooden box to fit it

3. just build a small wooden box and give up some storage space

4. I know that certain models of my car came with the monsoon system, which included a 6.5" sub, so try to find one of those and graft it into my car.  The enclosure for that sub was plastic though.

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You still havent mentioned what type of vehicle. Being a Monsoon system Im guessing a Ford type vehicle.What audio gear do you have now? Some of it may be used quite nicely to save some funds for other gear as well. I still use an older Eclipse Hu quite a bit and swap out old amplifiers depending on what I want in that certain vehicle and utilize other funds else where.