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.
Upload your Wicked
One Videos to YouTube!
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
chart.
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
port... 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.
WOOFERS
The "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 Wicked
One.
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 particle board.
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 not recommended.
