If you've never built a speaker cabinet before the Omni 12 Fullrange can be your first.
I designed this project specifically for woodworking newbie's who don't have
a lot of experience and also don't have a lot of tools. But
just because this cabinet can be built by just about anyone that doesn't mean
there's any scrimping on the performance. Utilizing one twelve inch or two ten inch
woofers, a six inch midrange and compression HF driver the Omni 12 Fullrange is fully horn-loaded,
and that means loud. But at about 60 pounds and measuring only 24 inches wide,
28 inches high and 15 inches deep, it's no larger than many cabs that can't
come close to its output capability. Take a look at this SPL chart, comparing the O12 (top trace) to a respected
commercial PA cab, the fifteen-inch woofer loaded EV Eliminator:
You can build it with a techno look, or use a finish that duplicates that of your amp head.
On average 3dB higher in sensitivity than commercial cabs, the Omni uses half
the watts to reach the same volume level. As a cab for electric bass the
Omni 12 has deeper lows than the average 1x15, stronger mids than the average
2x10, and unsurpassed highs. Keyboard players can finally hear their
instruments with as much fidelity on stage as they’re used to hearing in the
studio. What the Omni doesn't have is a big price tag. You can build one for
less than three hundred bucks.
This is what builder Charlie Biern said about his O12Fs:
I've used my pole mounted Omni 12s several times so far (both with and
without T24s) as the mains for my brother-in-law's 4 piece cover band and
have received raves for clarity vs. his JBL Eon G2s. Easily able to be louder
than you'd want to listen to with just a QSC RMX850 (185 watts) pushing them.
Since the Omni 12 Fullrange is intended for beginners the plans go into great depth, 25 pages in all, with
dozens of photos and diagrams.
For those who prefer a cab with a higher and narrower profile, the Omni 12
TallBoy.
The narrower footprint of the 20 inch wide, 34 inch high O12 TallBoy is stage
friendly in smaller clubs, and gives better projection over the audience in PA
applications, while delivering the same response as the original.
Construction Degree of Difficulty: 4
Performance Quotient: 7
Suggested Audience Size in PA Applications:
Two cabs to 250
The Omni 12s are stand-alone cabs, for use without separate subwoofers.
If you're looking for an easy to build PA top to use with subs, or need to cover larger audiences, check out the OmniTop 12,
OmniTop 15 and the Simplexx line.
Equivalent Retail Value: $ 1699
Plans are $19.95, delivered within 24 hours as email attachment in MS Word
format. PDF version available on request.
The Omni 12 Fullrange and Omni 12 TallBoy are different projects with different
plans. Be sure to indicate when you order which plan you want.
