help with outdoor pa/loud speaker

so no one know how to make a pa / loud speaker


looking for

2 -6.5 and tweeter


so a total of

4- 6.5

and 2 tweeters

You haven't said anything about amplifiers, enclosures, nor how weather/salt/water resistant your drivers need to be. Poly cones by themselves will not be enough to deal with marine corrosion.


The point already made about noise levels is a good one. Sound radiates spherically which means that for any given power level the SPL drops exponentially with the distance to the listener. Take any home or auto setup, measure the SPL a few feet and then move away to the wake boarder's distance.


PA systems have different design requirements than home or car audio, and different speaker driver designs and arrays have very different effects on the SPL and frequency response at the listening position. Some examples. Drivers arrayed in a vertical stack will have better horizontal response compared to an horizontal array. Some tweeter designs have very narrow coverage, they could be said to beam as frequency increases. Horns tend to be more efficient (greater output/per watt of input) than cone and dome drivers.


You might be better off looking specifically for PA speaker drivers; weatherized and designed for that use.


I suggest that you do measure the ambient sound level, and using home speakers determine the sound level you need at the boarder's location. Consider whether you want narrow coverage or wide. Each speaker you look at has an efficiency spec of SPL/watt at some distance. You can use that as a very rough guide for determining how many speaker drivers and what amplifier you will need.


Finally, I don't know where you put your boat in, but is some locations a PA system would be considered intrusive into the enjoyment of other boaters and those on nearby beaches.

fresh water only i live in kc mo


there are a few prebuilt speaker setup that use horn tweeters and they get great reveiw
http://www.wetsounds.com/pages/products/overview.html


but the cost $$$


i only boat on the week days i work on the weakend

when i boat there are only a few other boats like 3 4 at the most

no beaches

off the lake by the time the fishers come out to fish

and if some one asked me to kill the sound i would at least turn it down or off


look at a L/R set up with a horn and 3 6.5 or 8"

at 8 ohm will put me at 2ohm

fiberglass custom box

amp will be 2 ohm stable 2ch with power to fit the speakers


lots of guys use car audio

like 4--6 6.5 or 9x9s

and they say it is just not right


so i thought a pa setup would project the sound out in more of a line


caudio and home audio is ment to fill a car or room in a house

You can look for compression drivers with replaceable diaphrams just in case you

toast a tweeter, only the diaphram gets replaced, the rest of the tweeter is good to go.


Enter 'diaphragm' in the PE search window and analyze the costs of the diaphrams for

various drivers and find something you like.

http://www.partsexpress.com


Get some high sensitivity mids to get higher SPL with less watts.


B&C 6PEV13 6-1/2" Midrange
http://www.partsexpress.com/pe/pshow...number=294-650


->SPL: 99 dB 1W/1m

->Aluminum voice coil on fiberglass former

->Loudspeaker cones are treated with a special stiffening finish


The cone should be water proof.. do a simple test to find out. If not, I have an idea

you implement to make the cone {not driver} water proof.


See if they sell B&C replacement diaphrams for their 1" compression drivers. Find

a horn lense you like that fits.