The Decware Wicked One is a
compound horn loaded dual band pass design where each half of the box
shares the same horn flare. This makes possible bass that would normal
require a box almost twice as big.
It's fast, and deep. And can be made into a coffee table for your home or a seriously dangerous box for the car.
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The DECWARE WICKED ONE
The chart above shows
the SPL response potential for a pair of 10" Rockford Fosgate woofers
(RF108's) in an ideal 4th order enclosure of 10.01 cubic feet. The
response is indicated by the blue line in the chart.
Using the same woofers,
the response was measured after installation into this dual band pass
horn. The results of that are indicated by the red line in the
The yellow area
represents a serious gain in efficiency between the two enclosures. The
dual band pass enclosure is also smaller in size
by 1 cubic foot.
This illustration is
very conservative. By watching the impedance vs. frequency response of
a ported box it is easy to understand why a properly sized and ported
enclosure will offer increased power handling at the frequency of that
But, the way this horn loaded design works is similar to having
several ports working at several frequencies. We call it "a rubber
throat" because the "port" if you will, or better spoken- "the mouth"
of the horn changes in size and length depending on the frequencies it
reproduces. I know this is hard to follow if you're not up on horn
loaded enclosures so just remember the following:
A port resonates at a
given frequency determined by the length and diameter of the port,
while a horn resonates at a HI frequency and a LO frequency and EVERY
frequency between the two. For this reason the woofer is dampened at
every frequency between LO and HI. That's why it has such phenomenal
accuracy, gain, and bandwidth.
"Wicked One" is one of those rare boxes that works across a wide range
of drivers. The biggest difference being how low the box will
play. The ideal woofers are those designed for box sizes between 1
and 4 cubic feet with an fs around 30Hz +/- 10Hz.
While you can use 4 woofers, it won't make the box much louder, just
lowers distortion at max output. Most people use 2 woofers in the
You can find out what other people are using in our support forum for the Wicked One!
HOW TO BUILD ONE YOURSELF
SKILL LEVEL: This is an easy box to build provided you have a good table saw and can make accurate cuts.
TOOLS NEEDED: Besides a table saw
(with sharp blade) you will need clamps, carpenter's wood glue, a
sander (belt sanders work well) and a drill.
WOOD NEEDED: The box can be built
from 2 sheets of 48 x 96 inch plywood, MDF or high density
SCREWS are typically only used to
fasten the removable top (lid) so that the woofer can be
accessed. If you properly build the box with wood glue and clamps,
nails are not needed as the glue becomes stronger then the wood
itself. If you have an air nailer, you can use 2 inch finish nails
to hold the panels together in place of clamps while the glue dries.
FINISHES: The most common
way to finish this cabinet is to paint it. There are tons of
finishes available that can make the box look like anything from rock,
to marble. Also you can use real wood veneer for a completely
professional look in the house.
JOINERY: The quality of your cuts
determines the joinery or fit of each panel. Quality joinery is a
major part of the distortion free performance of this box. If
you're into box carpet and liquid nails to hide your joinery, and demand
the best performance consider purchasing one already built by
Decware. We use CNC machines and build the cabinets more perfectly
then is possible to do by hand.
WIRING: Since this box can
be pointing in any direction other then face down, no official back or
front have been defined. We recommend soldering a pair of stranded
16 AWG copper wires to the woofer terminals and run the wire out
through the port opening. Make it long enough to connect directly to
your amp. If you decide to hide the wire, you can drill a small
hole through one of the sides of the box and seal the wire with caulk
where it passes through the hole. Terminal cups leak air and are