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marine 2 or 4 inch speakers
marine 2 or 4 inch speakers
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Old 3rd March 2019, 05:56 PM   #11
iowatheoutdoorsman is offline iowatheoutdoorsman  United States
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Quote:
Originally Posted by Lohengrimas View Post
Have a look at Visaton, they sell pretty cheap outdoor loudspeakers in your size/cost range. Not sure about US distribution though.
These are cheap. Have you tried them yourself? I am wondering what the sound is like and how durable they are.
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Old 3rd March 2019, 06:14 PM   #12
tubesguy is online now tubesguy  United States
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Holy cow! I've had some Babb 534 speakers sitting in a box in my basement for years. Had I known they'd appreciate in value so much, I'd have tossed my vino collection and used the space for more speakers.
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Old 3rd March 2019, 07:02 PM   #13
Galu is offline Galu  Scotland
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Quote:
Originally Posted by iowatheoutdoorsman View Post
I am wondering what the sound is like.
If you are looking, for example, at the Visaton FR 10 FP 4" speaker then please note that it is below average sensitivity at 85 dB/W/m and will play much quieter than the 91dB/W/m speakers mentioned earlier. You can't even compensate by applying more amplifier power as these speakers are rated at only 20W. There's no such thing as a free lunch so take both power rating and sensitivity into consideration when making your final choice, if maximum loudness is still your objective.

FR 10 WP - 4 Ohm (black) | Visaton
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Old 3rd March 2019, 07:12 PM   #14
Galu is offline Galu  Scotland
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Moving up, the Visaton FRS 10 WP 4" has a sensitivity of 90dB and a power rating of 25W - this is worth considering if the price is right.

FRS 10 WP - 4 Ohm (black) | Visaton

FRS 10 WP - 8 Ohm (black) | Visaton

P.S. The specifications of your amplifier say that an 8 ohm speaker load is the 'best' (2 x 40W into 8 ohm both channels driven).

Last edited by Galu; 3rd March 2019 at 07:18 PM. Reason: Added the P.S.
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Old 6th March 2019, 10:01 PM   #15
iowatheoutdoorsman is offline iowatheoutdoorsman  United States
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I ended up ordering the Polk Audio DB401. Now it is time to figure out what I am going to do for a box to house everything.
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Old 7th March 2019, 05:46 PM   #16
Galu is offline Galu  Scotland
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Hope the polks work well in your application.

Being car/marine speakers, they won't be too fussy regarding the box.

A sealed box built in proportion to the size of the speaker grilles is likely to give good results.

A ported (reflex) enclosure would not suit these speakers.
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Old 7th March 2019, 10:09 PM   #17
iowatheoutdoorsman is offline iowatheoutdoorsman  United States
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Originally Posted by Galu View Post
Hope the polks work well in your application.

Being car/marine speakers, they won't be too fussy regarding the box.

A sealed box built in proportion to the size of the speaker grilles is likely to give good results.

A ported (reflex) enclosure would not suit these speakers.
Thanks for the tips for the box. That is kinda what I was thinking.
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Old 14th March 2019, 09:06 PM   #18
iowatheoutdoorsman is offline iowatheoutdoorsman  United States
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Here is my final project. Sounds pretty good and plenty loud. I wanted to keep it small so this seemed to be my best bet. I know each speaker should have its own box, but I would have had to use a bigger box. Would adding any filler be of any benefit?
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Old 14th March 2019, 09:31 PM   #19
Galu is offline Galu  Scotland
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That's a great functional design! Well done!

In stereo, the bass usually comes equally from each speaker so I think you can get away with having both in the same enclosure without one overly affecting the other.

One improvement I would suggest would be to stiffen up the front panel internally with a plywood sheet.

Adding some internal damping would be a good idea (perhaps the fibre filling from an old pillowcase) to reduce enclosure resonances.

Keep the absorbent material well away from the amplifier though, perhaps by containing it inside a cotton bag.
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Old 19th March 2019, 08:54 PM   #20
iowatheoutdoorsman is offline iowatheoutdoorsman  United States
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Quote:
Originally Posted by Galu View Post
That's a great functional design! Well done!

In stereo, the bass usually comes equally from each speaker so I think you can get away with having both in the same enclosure without one overly affecting the other.

One improvement I would suggest would be to stiffen up the front panel internally with a plywood sheet.

Adding some internal damping would be a good idea (perhaps the fibre filling from an old pillowcase) to reduce enclosure resonances.

Keep the absorbent material well away from the amplifier though, perhaps by containing it inside a cotton bag.

Thanks, Galu. I couldn't think of a filler to use. I bet the pillow stuff will work perfectly. I actually had this setup to go in a dry box have the size of the one I used. I was going to have to cut the speaker covers in the areas that they hung over the edge of the box. I ended up going with the bigger box because my battery was about a 1/4 of an inch to big. It wouldn't slide in behind the speakers.
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