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Old 04-02-2013, 08:24 PM
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skiknox skiknox is offline
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Boat: 1995 prostar 205
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Ps 205 sub?

A buddy gave me a alpine 12" s 12 sub and a alpine m350 amp it's never been used so going to put it in the prostar. Of course the easiest is to put it under observers seat but is it worth having someone build a enclosure for under the drivers dash. Don't wont to drop a bunch on this but want a decent sound just not a boom.
Thanks
Ben
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Old 04-02-2013, 08:30 PM
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Thats where I put my hand-me-downs too. Down firing box... Extra battery in there too.

....
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  #3  
Old 04-02-2013, 09:38 PM
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It will be much louder under the driver's dash, unless you plan to leave the observer's compartment open all of the time. If you just want a decent sound, it will be fine under the observer's seat.
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Old 04-02-2013, 10:21 PM
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i have a jl 10w6 w 500w in the section behind the observer seat, its hits really hard when open, not so hard when closed.im thinking about putting an empty jl speaker or tweeter grill on the dash to let the sound be heard better.speaker grill would be better but might do tweeter to keep water out of that compartment and it'll still help a little.
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Old 04-03-2013, 11:42 AM
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I've got mine under the drivers dash. It takes up some room, but it sounds better. The trade off was worth it to me.
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Old 04-03-2013, 12:57 PM
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EarmarkMarine EarmarkMarine is offline
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Yes, you can make a boat-shaker from behind the observer's seat. You will lose 5 to 6 dB of output which means the sub driver and amplifier have to work four times harder to achieve the same output. It can 'hit', 'boom', 'thunder', 'rumble' and so on. All inarticulate and percussive in nature. But not much of a musical bass-maker. Not much good for any stringed bass instrument.
A smaller woofer and enclosure under the driver's dash will provide more output with a significant performance increase in bass attack, transients and tonal construction. But less boat shaking.
If you port the observer's compartment, ideally you would want an open vent approximating the woofer surface area. And you want all venting as low in the bathtub (cockpit) as possible.

David
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Old 04-03-2013, 07:24 PM
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Highly recommend a box under the drivers dash. Simple and easy. Use your kick panel as the front template. Cut the circle out and build the box on the back end attach it to your kick panel......viola. Slides right in and looks factory. You also wont lose any precious storage.
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Old 04-03-2013, 10:15 PM
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  #9  
Old 04-03-2013, 10:28 PM
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swatguy, think that option you spoke of would work with an integrated bow sac space wise? also any idea what material is under the carpet in that area?
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  #10  
Old 04-06-2013, 08:24 AM
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Boat: 1995 prostar 205
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Mine is a 95 205 and looked under drivers seat and very little room there. There is no way a 12in enclosure could fit.
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