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New Danley SH-25 Loudspeakers Outperform Line Array Technology

GAINESVILLE, GEORGIA: Innovative loudspeaker manufacturer Danley Sound Labs will introduce the world’s first high output loudspeaker that is seamlessly arrayable both horizontally and vertically at the NSCA Expo 2007 in Orlando, Florida. Sibling of Danley’s celebrated SH-50, the new SH-25 delivers 10dB more output with a perfect, 25-deg x 25-deg beamwidth. Users can hard pack multiple SH-25s in any direction to effectively create the world’s only perfect multi-cell horn.

The SH-25 will be demonstrated during NSCA in demo room W307A. Composed of a single one-inch tweeter, 4 four-inch mids, and 8 six-and-a half-inch woofers, a single SH-25 covers the frequency spectrum evenly from 80Hz to 18kHz and sounds transparent and true even with no equalization. When four of the 28″ x 28″ x 42″ units are packed together, the low-end drops smoothly to 50Hz. Sensitivity is rated at 104dB, and maximum output reaches 140 dB.

“We are absolutely, unapologetically aiming the SH-25 squarely at the forehead of the line array world,” proclaimed Mike Hedden, president of Danley Sound Labs. “The industry went to line arrays primarily for two reasons. First was the complete lack of time coherency. After all, the standard loudspeaker setup was however many boxes you could stack a side, but bear in mind these boxes didn’t behave well by themselves much less with twenty stacked together. So the industry took this cacophony of sound and actually went very old school by vertically stacking everything. This resulted in fewer boxes covering a given area of a horizontal seating plane and it did sound better, not great, just better, than the previous mess. Second, you only need couple of pick points allowing quick and easy hanging. So fine, now you can generate mediocre sound quickly. But the folks buying $100 tickets don’t care that you can reproduce mediocre sound fast, they came to hear accurate fidelity!”

“A well behaved point source will always sound better than a line source,” continues Hedden. “However, in my opinion, the majority of loudspeakers marketed as line array products have little in common with true line source phenomena. For the few speakers that actually have any line source behavior it is for a very limited bandwidth contained to the high frequencies. In reality they are simply variations of mediocre point sources simply vertically stacked.

Mick Jagger sang, “Time is on my side, yes it is!” and that in a nutshell sums up why the SH-25 is so superior. When you have time on your side you have coherency and with coherency comes accuracy and fidelity. The SH-25, due to its depth and mouth size, also provides pattern control to a much lower frequency than line array products thus delivering better direct sound and much less room excitation. The driver compliment and physical size of the horn delivers extremely high output enabling compensation for the inverse square law with all the frequencies going to the back of the room, not just the highs.”

Since the SH-25 time relationships work simultaneously in both horizontal and vertical planes, a tight packed array of six or eight boxes delivers seamless arraying with minimal interference in either direction and stunning fidelity. And with only one amp channel per box, the SH-25s deliver great audio fast and easy.

“We spent the time designing the Danley Sound Labs SH-25, right so you don’t have to waste your time trying to make it work,” concludes Hedden.

Tom Danley is one of the most innovative loudspeaker designers in the industry today and is recognized worldwide as a pioneer for “outside the box” thinking in professional audio technology. His legendary designs have been utilized in projects ranging from ground zero bombing simulation, jet engine active noise cancellation, and sonic boom generators to critical listening mastering studios, high-end home theatre, and houses of worship around the world.

Danley Sound Labs


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February 2007
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