OMEN DEF Mk.I [Rev. A]

[Discontinued and superseded]

Omen taken to the max—that's Omen Def. Our objective—to create and build a loudspeaker that can go toe to toe with the best loudspeakers in the world, is happy with the vast majority of amps, looks spectacular, and at a price that most working music heads can afford after a roof, some walls, and a car.

Using the same Omen drivers and components as the Omen floor-stander, but doubling up the full-range drivers in an array first seen in our Definition speaker, hence the name, Omen Def. Reinforcing Omen series values of maximum sound for the money, with minimum stylistic extravagance, the result is classic Zu—clean, simple aesthetics, attractive proportions and sound quality that'll blow your socks off. Two Omen full-range drivers wired in parallel delivers a benign, amp-friendly impedance, making Omen Def highly suitable for solid-state as well as vacuum tube amplifiers—and able to mix it up with amp's from budget to high-end.

Omen Def [Mk.I-A] Quick Specs

Height: 47" [119.5cm]
Footprint: 12 x 12" [30.5 x 30.5cm]
Weight: 78 pounds [36kg]
Bandwidth: 30—25kHz
Efficiency: 98dB 1W/1m
Impedance: 6 ohm
Power Amp Range: 4—400 watt

Omen Def over-delivers on performance, much more than all that Zu driver goodness and machined aluminum suggest. Omen Def is a combination of the technologies developed in Zu Definition loudspeaker, combined with the production methodology of Omen—the result is a standardized high-volume loudspeaker that delivers quality, performance, and good looks at a Zu-sane price. Our drivers, machine work, cabinetry, finish, assembly, packaging, all done right, right here in Ogden, Utah.

Omen Def is quite simply one of the most versatile loudspeaker systems out there—its sensitivity and efficiency deceives small amplifiers into thinking they're power monsters, with resolution of tone and dynamic expression demonstrate clearly the benefits of moving up the amp' food-chain to more esoteric gear. Omen Def is built to last a lifetime: cabinet material, adhesives, driver assemblies... every component is a high quality part, creating a loudspeaker system to constantly remind you of the greatest gigs you ever attended....

Omen Def are built to last a lifetime: cabinet material, adhesives, driver assemblies... every component is a high quality part, creating a loudspeaker system that will continually satisfy and amaze, decade after decade.

Omen Def Technologies Old & New

Omen Def, like all Zu products, is built around the critical human voice (A1, 55Hz, through A6 and all the possible harmonics, to approximately 10kHz). Serving this critical region of tone is Zu's 4th generation (standard motor) 10" paper coned full-range driver. And despite what many audio snobs might think about it based on price, Omen Def is a true state-of-the-art loudspeaker.

ZuGriewe is a cabinet / driver / room acoustic impedance architecture. The technology was developed by Ron Griewe and Sean Casey, with its beginnings developed for motorcycle / automotive engine systems for improving power output through pulse and pressure management within an increased bandwidth.

Zu260FRD/G4 Full-Range 10" [26cm] Driver

This is Zu's proven 10" full-range driver, with the addition of the high frequency diffusion detail in the face of the pole piece extension. This "phase plug" is a carry over from the research and testing we did with Essence, which gives Omen Def a more linear management of high frequencies and broader dispersion from the directly coupled to voice coil inner cone.

Colors & Finish Options

Standard satin varnish offerings are: Ghost Black | Honey Walnut | Sangria | Electric Blue. Other finishes are available through the Zu custom shop. Inquire for pricing.

The above standards are top coated by UV protecting premium grade conversion varnish. All finish work is done in Zu's custom finish shop using processes and techniques developed by top U.S. acoustic guitar builders for a deep rich three dimensional look and great feel.

Tips On Getting Great Sound From Omen Def

(Download the owner's manual, lots of good stuff in it.) Omen Def loudspeakers now get a 160 hours of factory burnin, they will sound good right out of the box but will not give you their best for several weeks, depending on how much play they get and what kind of music they see. If at first you find them restrained and a bit conservative, relax, they will come around. If they have been shipped in the winter months you can expect them to need the first week to warm up and start sounding good, not sure why exactly, it just is.

Make sure you have 1/4" [6mm] or greater gap between the bottom of the loudspeakers and the floor. The finger ports are part of the Zu-Griewe box loading technology. They are not ports as used in a bass-reflex design (Helmholtz resonators in all their forms) but the finger ports do need to see the acoustic space of the room. Blocking them turns the Omen Def into an interesting but "sealed" design.

In addition the installed ball end footers (for use with hard surface flooring) Omen Def also ship with spikes to be used to punch through and anchor the speaker through carpets and rugs.