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Yorkville U15 Passive Speaker B-Stock

800 watts – 4 ohms – 1/15”, 3x 5” MF & 1” HF driver on 60°x60° UnityTM horn - bi-amp

U15 - Angle

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Product Description for the Yorkville U15 Passive Speaker B-Stock

Engineered for the serious pro audio user, the U15 is among the most advanced, most versatile and most efficient high-powered portable P.A. boxes available on the market today. The U15 is a radical loudspeaker cabinet design utilizing the patented Unity™ Summation Aperture Horn Technology invented by loudspeaker designer Tom Danley.

The U15 provides remarkably even high/mid frequency distribution from its 60º x 60º horn assembly. The combination of that conical, constant directivity horn, a 15-inch Neodymium-magnet woofer and our unending attention to details, right down to the ideal trapezoidal cabinet design, has yielded an extremely versatile speaker. The U15’s Unity™ horn combines a single 1-inch-throat (1.75" diaphragm) compression driver with three 5-inch ceramic magnet midrange drivers firing through time-aligned slots in the horn-wall. This seamlessly blends the mid and high frequencies while providing exceptional power capacity and clarity from 300Hz to 20kHz.

An advanced, high-efficiency, 800-Watt fifteen with an ultra lightweight Neodymium magnet provides clean, powerful lows to complete the package.

The U15 comes with a high-definition 3-way passive crossover featuring our exclusive PTC™ non-interruptive horn protection. However it can be easily bi-amplified by way of a switch on the rear jackplate, and using the optional UP15 Unity™ processor, designed specifically to optimize the sonic characteristics of the U15. The UP15 has been developed to ensure trouble free, “plug-and-play” operation and further offers a subwoofer output.

The compact and ultra efficient U15 is a trapezoidal shaped, 800 watt cabinet with a carefully chosen crossover point to seamlessly match the directivity characteristics of the conical horn to the neodymium woofer. With such a compact footprint and weight, the U15 easily finds its home as a FOH speaker, drum monitor, side fill, front or down fill or virtually any situation where a professional quality sound reinforcement system is required. The unparalleled sonic clarity and smooth frequency response also makes it great for music playback. With pre-recorded music the U15 has the hi-fidelity to put it on par with some of the best studio reference monitors. But unlike traditional studio reference monitors, the U15 is capable if putting out a very high-efficiency 800 watts into 4ohms. The trapezoidal shape was designed with multi-box, tight pack arraying in mind.

Looking at a polar plot for a 3 box, tight-pack array one would notice how extremely well behaved it is. Furthermore, due to the nature of the conical horn, the polar pattern remains quite constant regardless of any vertical, or off-axis rotation put upon it. It acts the same on all vertical axis, making it ideal for use upright or on its’ side, without the need to ever rotate the horn.


  • Unique 60º x 60º Unity™ horn assembly combines mid and high frequency drivers on conical horn.
  • All four component drivers mounted in a Unity™ horn are mechanically time-aligned to measure and act like a single point source.
  • No self-interference between individual loudspeaker components.
  • 15” high power lightweight (10lbs/4.5kgs) Neodymium woofer with 3” voicecoil.
  • Nine rigging points and internal standmount adapter allow for all possible mounting and flying configurations.
  • 15mm 11-ply birch cabinet construction.
  • Two-year unconditional warranty*
  • U15 - Black Ozite (Carpet) Finish
  • U15B - Black Ultrathane (Painted) Finish
Brand Yorkville
Weight 91.0000
Dimensions (WxHxD) 19.25" x 34" x 16.25"

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