Cabinet Builders

AutoTuba and Truck Tuba

David Stereo Floorstander

SLA Home Theatre and PA Mains

Simplexx Easy Build Cabs

TLAH Home Theatre/PA Mains

XF Guitar Cabs

DR200 PA Top

DR250 Bass/Key/PA Cab

DR280 Bass/Key/PA Cabs

DR300 Concert PA Top

Jack 10,12 and 15 Bass/Key/PA Cabs

Omni 12 Fullrange and Omni 12 Tallboy Bass/Key/PA Cab

Omni 15 Fullrange and Omni 15 TallBoy Bass/Key/PA Cabs

OmniTop 8 PA Top

OmniTop 12 PA Top

OmniTop 15 Bass/Key/PA Cab

Tuba 18 Stereo/HT Subwoofer

Tuba 24 Pro-Sound Subwoofer

Tuba 30 and Tuba 45 Pro-Sound Subwoofers

Tuba 60 Pro-Sound Subwoofer

Titan 39 Pro-Sound Subwoofer

Titan 48 Pro-Sound Subwoofer

Table Tuba Stereo/HT Subwoofer

Tuba HT Home Theater Subwoofer

Wedgehorn 6 and Wedgehorn 8 Vocal Floor Monitors

Wedgehorn 10 Full Range Floor Monitor

Panel Jig

How to Order Plans


OmniTop 12

What’s the best all around small PA top available today? Those who have built them agree that it’s the DR200. And what’s one of the most difficult speaker cabinets to build? Those who have built them also agree that it’s the DR200. Superior performance doesn’t come easy. So what do you do if you aren’t a master woodworker? If you’re willing to settle for the second-best small PA top available build the Omni Top 12. Measuring 15 x 22 x 18 inches and weighing only 35 pounds Omni Top 12 is only surpassed by the DR200 in its size class for output.

How does it compare to commercial cabs? Take a look at this SPL chart, comparing the OT12 (top trace) to the $1,045 Community Sound XLT43e 1x12:

The 6dB sensitivity differential means one OT12 driven with 200 watts is as loud as two XLT43e driven with 400. The OT12 may be built with a single compression driver on a CD horn like the XLT43e, or it may be built with a six element vertical tweeter array for line-array stacking of multiple cabs. The OT12 may also be built with a twelve element cross-firing melded tweeter array, as pictured above, giving high frequency dispersion that no commercial PA top can match. Or, for the highest possible output at the longest throws, build yours with a premium compression driver on a line arrayable full cabinet height horn.

Need more power? Build the OTop as a 2x12 and load it with Kappalite 3012HO woofers, for 900 watt power handling with sensitivity and output that no commercial cab of equal size matches.

The plans go into great depth, showing you not only what tools to use but also how to use them. Included are tutorials on wiring and crossovers.

Construction Degree of Difficulty: 3

Running a big rig? The OTop 12 JArray is designed for stacking in the preferred curved front 'J' configuration.

The JArray also incorporates advanced construction techniques that allow it to come in between 20 and 30 pounds, depending on choice of drivers and materials.

Construction Degree of Difficulty: 6

The standard OTop 12 and OTop 12 JArray are separate plans. You must specify the version you want on your order.

Performance Quotient: 8

Suggested Audience Size, 1x12 configuration:

Two cabs to 150; four cabs to 600; six cabs to 1200; eight cabs to 2000.

Recommended Sub-Woofer: Tuba 24, Tuba 30, Tuba 60, Titan 39, Titan 48

Equivalent Retail Value: 1x12 $1099; 2x12 $1699; 1x12 JArray $1199

Plans are $19.95, delivered within 24 hours as email attachment in MS Word format. 36 pages, 14 photos, 71 diagrams. PDF version available on request.


For those who can't cut their own wood flat packs are available at www.speakerhardware.com

These kits are precision CNC milled from top quality Baltic Birch. Flat packs do not come with plans, you must order those separately from us.

Can’t build your own? Contact the nearest authorized Builder for a quote.