Yellowchaser wrote:

why **** around with building plastic boxes?

'www.itronix.com' (http://www.itronix.com/)

all will be revealed grasshopper


Because its inexpensive to build yourself, durable, and you can
customize it to fit your own boat not a generic one that is suppose to
fit all and doesn't. Why search trying to find something that you will
only have to pay manufacturing costs on when you can get everything you
need at a hardware store. How do you think ideas get started.

Why a box? You picked a design with about 12 seams that need to be
sealed and requiring a complicated contour matching and assembly process.

Use a cylinder of Plexiglas, fibreglas, or maybe even ABS, PVC, or one
of the other dirt cheap, commonly available, construction materials.

Lots of room for ingenuity here. Use a end piece that will take a cap
or plug. Cut it to an approximate fit and then lay a piece of coarse
abrasive on the mounting spot and sand it to fit. Then fibreglas it
into place.

I remember some housings that were around in the early 80's that were
filled with mineral oil instead of water to get a better acoustic
transfer.

Jack

--
Jack Erbes in Ellsworth, Maine, USA - jackerbes at adelphia dot net
(also receiving email at jacker at midmaine.com)