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the pictures below to see a larger version.
This boat arrived with an existing system with four 10-inch
woofers distributed around the interior in four different
locations. We maintained one 10-inch air suspension subwoofer
in the bow zone. We custom built dual compound-loaded bandpass
enclosures (port to port), each with a JL Audio 13W6 driver.
The enclosures were fitted into the port side rear bench seat
console. This was no easy task. The ports are angled down
by 5 degrees to discourage water from getting into the enclosures.
The two ports exit into a pan and adapters that seal and couple
the output to the boat interior via a large surface area vent.
The bottom of the pan is angled with drains at the bottom
for any water that may enter from the outside vent. The purpose
of this subwoofer design is twofold. One is to collect the
energy from two subs for a single source. Two, is to seal
off and eliminate the large under-seat cavity and adjoining
gunnel cavities that would serve to rob us of some of the
bass energy. This subwoofer system, as designed, is 100 percent
direct radiating. And it works! You will not only feel the
compression in your chest, it will suck the breath out of
your lungs if you get too close on heavy bass material. I
was seriously disoriented after just a few minutes of listening
to Bottom Feeders.
There is a bass level control under dash.
vinyl clad subwoofer vent uses a painted stainless steel mesh
with hidden rear reinforcement.
Two JL Audio 13W6 bandpass enclosures run end to end.
is driven by its own JL Audio MHD750/1. These dual BP enclosures,
compound loaded and powered by twin HD750/1s are 12 dB more
output than a single 13W6 in a sealed box powered by a single
HD750/1...so the equivalent of 16 times the amplifier power.
matching vinyl panel includes a new locking storage compartment
which serves to cover the previous woofer location.
matching dummy vent and interior panel on the other side seals
the opposite seating console and covers the opening left by
the previous subwoofer.
JL Audio M770 components in the cockpit.
The bow features
a dedicated 10-inch JL Audio sub in a rhino-lined sealed enclosure
plus a pair of JL Audio M770s.
The bow area features a dedicated and local zone
control for the bow occupants who may want to cut back on the
volume from time to time.
The tower includes four Wetsounds Rev10s plus
a single Rev410. The tower speakers are fanned out for wider
dispersion and to minimize off-axis comb filtering.
One JL Audio MHD600/4 is run in the three channel
mode and drives the entire bow zone including the 770 components
and 10-inch sub.
A second MHD600/4 drives the four cockpit 770 components.
Three MHD750/1s drive the five tower speakers.
Two MHD750/1s drive the two 13.5-inch subwoofers.
So the seven amplifier total system conservatively approaches
Lit up amp rack!
The amplifier panel uses four fans, two top and
two bottom, to assist with cooling given the tight proximity
of the seven amplifiers.
A Clarion source unit supports helm and transom remote controls.
A Wetsounds EQ just below the HU.
battery box holds six 6 volt golf cart batteries.
The lid is elevated for venting.
on the side are two jumper posts for easy charger access.
Circuit breakers before being installed.
circuit breakers are mounted to the side of the battery box
with a removable protective cover.