Jack is our 'Jack of All Trades' speaker line: you name it, it can
do it.
It can be built as an old-school woofer only electric
bass cab. It can be built as a modern full range bass or keyboard cab.
It cab be built with one or two woofers.
It can be used as a
PA top along with subs, it can be used as a full range PA without subs. It can
be outfitted
with a 120 degree dispersion melded tweeter array, or a vertically aligned
compression
driver loaded high frequency diffraction horn, as shown below. It can be used
one per side
for small room PA needs, it can be vertically stacked in a line array for
thousand seat
venues. If maximum versatility is what you need from a speaker of minimum
size and
weight, not to mention cost, Jack is the cab you want.
At 15 x 16 x 20 inches and 30 pounds the ten inch woofer loaded Jack 110 is
our smallest cab, but it's not small
sounding. This SPL chart compares it to one of the least expensive commercial
line-array
able PA cabs, the Peavey Versarray 112:
The Jack 110 is about half the weight of the Peavey, but its sensitivity is on
average
over 3dB higher, so it only needs half the amp power to reach the same levels.
Jack 110 can run
without subs, Versarray 112 can't. Versarray 112 will cost you at least $1200.
You can
build Jack 110 with premium components for a quarter of that.
Want lots of bass from the least amount of space? This chart compares Jack 210
to a bass
player fave, the Avatar B410 Neo:
The Jack 210 is smaller, and lighter, and you can build a Jack 210 for about
half
what you'll pay for the Avatar. But with the same amp setting Jack 210 is
louder, and
Jack 210 doesn't have a midrange dip deeper than a New York City pothole!
Need more bottom and output than Jack 10? Jack 12 uses a twelve inch woofer
and more tweeter elements for higher sensitivity and output. But at 18 x 18 x
22 inches and forty pounds the J112 remains a compact lightweight powerhouse.
This J112, built by ZolkoW, was finished in a vintage style:
Here are excerpts from his review:
My previous rig was two 1x12 with the same Deltalites, in small vented boxes.
Nothing unusual about them, maybe even a little bigger boxes than EBS and
similar brands. It's hard to believe, but with my amp setting the same,
but only with one J112 box now, it is significantly smaller then the previous
rig and it goes lower, and it can be even louder, and this is with about half
the amp power.
Very serious.
Beginning woodworker? Jack isn't as easy to build as a plain box, but almost.
A table saw is not required, and the plans are so detailed that even a first
time builder
can be assured of a good result.
Can't build your own? You can have one custom built for you by one of our
Authorized Builders,
at a price far less than what you'd have to pay for a factory built cab of the
same quality.
Construction Degree of Difficulty: 3
Performance Quotient: 7
Equivalent Retail Value: 110: $499-$1299, 210: $699-$1999, 112: $599-$1699,
212: $799-$2499, depending on choice of drivers.
Plans are $14.95, delivered within 24 hours as email attachment in MS Word
format. 37 pages, 80 photos and diagrams. PDF version available on request.
The Jack 10 and Jack 12 are separate plans. Each includes both single and
dual woofer versions. Be sure to specify on your order if you want the 10 inch
woofer Jack 10 or 12 inch woofer Jack 12 plans.
Also includes an active 3D program so that you can view the cabinet in any
orientation with X-Ray vision!
