S-15

The S-15 is a high-performance subwoofer with a frequency response and SPL output that defies its compact dimensions, making it ideal for installations as well as mobile situations.

The compact enclosure houses a single 4” voice coil 15” (381mm) high-excursion neodymium LF drive unit, and is rigidly braced to minimise unwanted panel resonance. Constructed from multi-laminate premium birch plywood, the optimally-tuned enclosure includes two flush bar handles, rubber feet and mating recesses, and an M20 threaded pole adapter, as well as a total of 16 M10 rigging points for flying in both temporary and permanent installation applications. The S-15 is also supplied with a tour-grade castor set for easier transport.

The enclosure includes a pair of Neutrik® speakON™ NL4 connectors for input and enclosure link, and a tough mesh-backed hex punched stainless steel grille protects the drive unit from damage which can be quickly removed for service purposes. The enclosure is finished in an impact and weather resistant black or white textured polyurethane finish as standard, though RAL colour matching and enhanced weather-protected outdoor options are available.

The S-15 is designed to be a core workhorse subwoofer within the EM Acoustics range – compact enough to be transportable yet powerful enough to be useful for supporting larger models within the EM Acoustics range. The S-15 can support any product, but is especially suitable for reinforcing EMS-81X, EMS-101X and EMS-126/129 loudspeakers.

The S-15 requires external active high/low pass filters and a single amplifier channel to function correctly – as such it is recommended to be used with EM Acoustics’ range of Advanced System Amplifiers. It is however possible to use other DSP-enabled amplifiers, or conventional amplifiers with external DSP. Suitable DSP settings are provided on the EM Acoustics website. The amplifier should be capable of delivering 1000-1600W RMS into an 8-ohm load. For cardioid arrays, separate amplifier channels are required for the rear-firing subwoofer(s) due to the different processing needed.