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post #1 of 14 Old 12-30-2015, 06:38 AM - Thread Starter
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Help with boat audio? Subwoofer diy

Need help with boat subwoofer setup. I figured you guys could help. I'm currently running 2 Sundown zv3 12's (Sundown 4000d amp) in a ported enclosure tuned to 40hz.


I was wondering if going with a more pro audio style 12" would benefit me more since its and open air environment. Something like one of these woofers. Hard to pick up anything really under 35hz in open air environment of a boat.


http://www.parts-express.com/eminenc...4-ohm--290-668


http://www.diysoundgroup.com/replace...ts/mag-12.html


Since the are more sensitive than Sundown I could run less power to help on batteries.


Any help would be greatly appreciated.
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post #2 of 14 Old 12-30-2015, 06:44 AM
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Quote:
Originally Posted by Brad07z06 View Post
Need help with boat subwoofer setup. I figured you guys could help. I'm currently running 2 Sundown zv3 12's (Sundown 4000d amp) in a ported enclosure tuned to 40hz.


I was wondering if going with a more pro audio style 12" would benefit me more since its and open air environment. Something like one of these woofers. Hard to pick up anything really under 35hz in open air environment of a boat.


http://www.parts-express.com/eminenc...4-ohm--290-668


http://www.diysoundgroup.com/replace...ts/mag-12.html


Since the are more sensitive than Sundown I could run less power to help on batteries.


Any help would be greatly appreciated.
Are the subs in an area protected from water? If not, then I'd only recommend using subs specifically designed for "Marine" use. Otherwise you will run into all sorts of issues with the cone/surround getting wet. If they are not protected I'd look into the Polk MM series. I've been using the MM 1040 in my truck for 3 yrs now and it's a solid little sub.

If they are protected then you may gain a little output going with the Lab12, but its going to be somewhat dependent on the enclosure size. Any more details on its internal volume and port size?

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post #3 of 14 Old 12-30-2015, 07:18 AM
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Alpine also has marine subwoofers.
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post #4 of 14 Old 12-30-2015, 07:26 AM
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Quote:
Originally Posted by Brad07z06 View Post
Need help with boat subwoofer setup. I figured you guys could help. I'm currently running 2 Sundown zv3 12's (Sundown 4000d amp) in a ported enclosure tuned to 40hz.


I was wondering if going with a more pro audio style 12" would benefit me more since its and open air environment. Something like one of these woofers. Hard to pick up anything really under 35hz in open air environment of a boat.


http://www.parts-express.com/eminenc...4-ohm--290-668


http://www.diysoundgroup.com/replace...ts/mag-12.html


Since the are more sensitive than Sundown I could run less power to help on batteries.


Any help would be greatly appreciated.
What make/model of boat? If it's a runabout or ski boat, sound quality won't be as noticeable as it is in a cuddy or cruiser and if you're on a crowded lake with lots of people living there, you're not going to make them happy with loud bass. The Eminence in a sealed cabinet would be my choice if it would be possible to prevent moisture from being a problem. Some drivers are OK with moisture unless the rear is exposed and I wouldn't want to spend a lot of money and have it go to waste.
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post #5 of 14 Old 01-05-2016, 03:19 PM
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Even if it were below deck protected from direct spray I would recommend using marine speakers. Put some car speakers below deck in a 32' carver and they only lasted a couple seasons. The moisture in the air just killed them.

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post #6 of 14 Old 01-05-2016, 04:06 PM
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Alpine makes a sub for OEM use in the jeep wrangler. The location is in the bottom of the rear hatch and there were concerns raised about durability there, so they did a demo that showed it off playing covered in water. Not sure if they have other options in the same line or not, but it seems like it would hold up well at least. http://www.cnet.com/news/jeep-and-al...m-at-ces-2015/
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post #7 of 14 Old 01-05-2016, 07:36 PM
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As long as it's a rubber surround with plastic or metal cone it'll be fine. We run them all the time through mud and water and they hold up just fine.
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post #8 of 14 Old 01-06-2016, 03:24 AM - Thread Starter
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I'm already run Sundown ZV3 in my boat now for 3 years. I was just asking if a pro style woofer with a higher sensitivity would help me out since you have to run the boat off a battery bank. I currently running 6 xs power 3000xp batteries. 4000 watts takes a toll on them quickly and its a lot of weight.


Since I've been on here couple months the pro woofers got me thinking. Also most all subwoofers will hold up to the outdoor elements. I've had most all of the sundown series, JL audio, kicker, etc.

Last edited by Brad07z06; 01-06-2016 at 03:29 AM.
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post #9 of 14 Old 01-06-2016, 06:43 AM
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Quote:
Originally Posted by Brad07z06 View Post
I'm already run Sundown ZV3 in my boat now for 3 years. I was just asking if a pro style woofer with a higher sensitivity would help me out since you have to run the boat off a battery bank. I currently running 6 xs power 3000xp batteries. 4000 watts takes a toll on them quickly and its a lot of weight.


Since I've been on here couple months the pro woofers got me thinking. Also most all subwoofers will hold up to the outdoor elements. I've had most all of the sundown series, JL audio, kicker, etc.
How quickly are you pulling the batteries down and are you putting them on charge when you're done every day?
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post #10 of 14 Old 01-06-2016, 06:50 AM - Thread Starter
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They stay on charge when not in use. I get about 4-5 hours out of the batteries. I have 1800 watt rms 6 channel amp ( Wet Sounds SD6) and 4000 watt rms sub amp (Sundown SCV 4000d) . So it has a lot of draw. I just hoping for something that could get close to same loudness off of a lot less watts.
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post #11 of 14 Old 01-06-2016, 07:18 AM
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I had a similar situation as you that I made a low cost fix that I'm happy with in my 21' Crownline. I started with a JL 13w7 in a ported box in the engine compartment area on a JL 1000/. Loved the sound and output, but it would deplete the batteries quickly - like an hour, not much more. I have 3 for the amps and 1 for starting and the HU. I then added two JBL GTO 1214D ported to 30 something, each under the helm, powered by a single JL 500/. I made a remote toggle switch and gain dials for each so I can use one, both, or none. The ones in the helm help the midbass a lot while we are cruising along, the 13w7 brings the low bass and the tactile feel. When we are coved out, I turn off the w7 and run the JBL pair. We can set for about 8 hours at high volume before the voltage is too low for the amps.

In my pontoon boat, I use all Morel 6x9s ib, but am building a slim T48 horn using the Eminence 3015lf which will blow the GTOs away with less power. It's a huge box, but it's a pontoon so I have room plenty of room and can put it in the back with a cushion on top and use it as a seat.
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post #12 of 14 Old 01-06-2016, 07:19 AM
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Find something 3db more sensitive and you'll use half the watts for the same spl.
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post #13 of 14 Old 01-06-2016, 08:03 AM
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Quote:
Originally Posted by Brad07z06 View Post
They stay on charge when not in use. I get about 4-5 hours out of the batteries. I have 1800 watt rms 6 channel amp ( Wet Sounds SD6) and 4000 watt rms sub amp (Sundown SCV 4000d) . So it has a lot of draw. I just hoping for something that could get close to same loudness off of a lot less watts.
You've certainly got the right idea but it's also dependent how much xmax you need vs how much the higher sensitivity option offers. Also helps to know at what frequency the sensitivity rating was given.
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post #14 of 14 Old 01-13-2016, 06:35 AM - Thread Starter
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Well I ordered 2 of these http://www.diysoundgroup.com/replace...ts/mag-12.html to see how they do compared to what I have now. If its a total failure I will be making a couple flex 12's. So win win. Hopefully they'll work ok. I would love to just run around 1000 watts instead of 4000. They're roughly 7-8 db more sensitive than I run now.

Last edited by Brad07z06; 01-13-2016 at 06:38 AM.
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