Boat Subwoofer

[lvfive.o 10+ year member]

I was looking at either doing the Kicker L7 15" or 12" under the driver insturment panel, either speaker will be powered by a Brutus 1500D that I have laying around. My question is will this sound alright and what would be better, sealed or ported and should I go 15" or 12"?? The only picture I have is kinda crappy but will give you guys an idea, the speaker will be under the dash in the area you can see at the very bottom of the picture.

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[smd4life 5,000+ posts]

being in a boat and most likely going to get wet, i would go with a fiberglass sealed 12,

 

[lvfive.o 10+ year member]

I was looking at having the box built here locally and would be mdf either coated in a epoxy resin or fiberglass

 

[joetama 5,000+ posts]

I would agree with the sealed, because you almost have to expect water if not LOTs of moisture, and you want to keep the inside of that box as dry as you can no matter what....

 

[CBFryman2 5,000+ posts]

look for something with an aluminum or composite cone and rubber surround. Build sealed or 4thorder bandpass and seal the out and inside with a good paint or fiberglass it or coat it in polyester resin.

l7 12 would be enough.

BTW, got pics of the whole boat?

if its wakeboard i reccomend doing some woofage on the tower too.

 

[lvfive.o 10+ year member]

Here is one, not a very good picture but oh well.

The boat didnt have a stereo at all when I bought it and it now has a kenwood headunit with marine mb quart 6.5 coaxials powered by a clarion marine amplifier. I just added dual Optima Blue Tops with a hellroaring isloator/combiner (Killing the battery with the stereo was not a fun experience). I am not keen on going with a marine subwoofer as they do not apear to be the best of quality. Would really like to add some tower speakers but that requires another substantial investment between another 4 channel and how much ever those tower speakers are going to cost.

In my car I have a RE XXX 12 powered by an RE 36.1 so I would like something that produces some bass on the boat, obviously it will probably not sound the same as my car.

 

[lvfive.o 10+ year member]

Another question, I have never owned an L7 do they still sound good in a sealed enclosure or is ported better?

 

[CBFryman2 5,000+ posts]

large sealed enclosure is your best bet

TC 3000 12 would do nicely. going to want low Q to get the low extension since it is essentially anecho.

 

[CBFryman2 5,000+ posts]

BTW nice boat, i get to ride behind a POS bayliner with cheap pylon //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

but soon im hoping to buy my own and build a custom tower for it and do buit in ballast. i need to save and get through this SPL isntall though.

stereo wont be too important becase anything im going to get will be outboard so it will be rather noisy.

 

[lvfive.o 10+ year member]

Yeah I was surprised how quiet this boat is for having a 350 chevy in it, the boat had a ballast bag in the rear i added a jasco ballast puppy pump to pull water from the lake so I didnt have to fill it and empty it before we went out.

What do they consider a large sealed enclosure CU. FT wise??

 

[troy_audi0 10+ year member]

I did custom Boats all the time back in San Diego,

This 1st Pic is kinda what your lookin at.. this is a 12" CRV

 

This Is a L715 Box Fiberglassed into the floor not very hard todo but takes some time..

 

I would Mount the Amps In the other side stoage area..

Good Luck

Troy

 

[troy_audi0 10+ year member]

Find some Defcon 5's or 8's you can add them on the crossbar for some nice loudness.. not very imaged but gets loud..

peace Troy

 

[lvfive.o 10+ year member]

The storage area is where the other amp and batteries are at, and that picture is exactly what I want to do just curious as to how it would sound?

 

[troy_audi0 10+ year member]

It was loud as hell.. well for a boat..

It was nice & eazy the hard part it getting the RCA's thru the wall but a good long unibit will work.. zipties with the mounting holes & some loom gets it all nice & clean, fiberglass the box & you should have no problems with corrosion, soder the conectors with corrosion free soder & you should be all set.

peace out & post more pix when you start the project..

Troy

 

[Decipha 10+ year member]

don't teh boom boom scarey the fishies... when i went fishing out in hope dale with an older friend of mine... we couldn't even walk on the boat because he thought it would scare the fishy