SP2-10 Hornloaded low-mid

Frankfurt, March 2008

SOUND PROJECTS revealed their new SP2-10, a twin drive hornloaded bass cabinet at last Prolight & Sound in Frankfurt. Meanwhile the new subwoofer is taken into production and the first 20 pieces have been delivered to the Norwegian SOUND PROJECTS agent PAP.

The self-powered SP2-10 complements the SP18 frontloaded vented sub-bass. With these identical shaped cabinets a sheer unlimited variety of low-end configurations can be composed to augment the low end of any imaginable sound system. Physically the SP2-10 matches the SOUND PROJECTS Linex™ line array system.

Like the SP18, it’s twin brother system, the SP2-10 is equipped with the same simple and elegant rigging or locking system. This means that, besides sound colour and headroom, the system engineer can also manipulate the radiation pattern. Both vertical beaming as well as different cardioide radiation patterns can readily be accomplished by any combination of stacking and/or rigging, augmented by digital beam steering if deemed necessary.

The SP2-10 is optimised to cover the most dynamic and the most powerful frequencies of music (60 – 160 Hz). Horn loading improves low frequency directivity and, because the horn also acts as an impedance-matching device, maximizes driver efficiency. The SP 2-10 offers more than double the efficiency over direct radiators and has the great musical benefits of fast transient performance. Because less amplifier power is required to achieve the same SPL relative to a large 15 or 18-inch direct radiating driver, driver excursion and, therefore, distortion are reduced.

The emphasis on musicality combined with maximum efficiency resulted in a curved horn shape with substantially reduced abnormalities in frequency response. Hence little or none electronic tweaking or “processing” is applied. That way, the engineer can focus on the music and is not fighting something he is unaware of. Since the introduction of the Master Blaster bin in 1983, Sound Projects has always endeavoured to create a smooth response in the acoustic device itself rather than correcting things electronically.

Dual ultra-long excursion 10" drivers are front-loaded by a hyperbolic horn with low flare rate. The rear of the driver is a closed compression box to extend the SPL performance of the cabinet over its bandwidth.

Meanwhile the SP2-10 is taken into production and the first 20 pieces have been delivered to the Norwegian hire company PAP (Professional Audio Produksjoner) in Stavanger. End of May these SP2-10s stood the test with flying colours during the Classic Rock Festival 2008 in Sandnes. Hahardrock legends like Def Leppard, Led Zeppelin, Slade and Thin Lizzy rocked the crowd, reinforced by 2 x 9 Sound Projects SP2-10, 2 x 15 Sound Projects Linex and 36 SP18 extra subs.

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