The EMS-115/115C is a compact, powerful subwoofer, intended to support the mid-sized fullrange loudspeakers from the EMS Series.  Two options are available with this subwoofer model – both utilising a high excursion 15” (381mm) drive unit with a 4” (102mm) voice coil.  The standard EMS-115 is fitted with a neodymium magnet assembly, to keep weight to a minimum for touring applications.  For installation or more cost-sensitive applications, the EMS-115C is identical in appearance and performance, yet contains a ceramic magnet drive unit which results in a more cost-effective loudspeaker, with a slight increase in weight. The enclosure is constructed from premium grade multi-laminate Birch plywood and is finished in impact resistant paint.  Two flush handles, rubber feet and mating recesses and a pole adapter (either 35mm or M20 threaded) are provided for flexibility when in use.  For mobile applications, an optional set of tour grade castors is available.  The enclosure is finished in black textured paint as standard, however weather-protection options as well as custom RAL code colours are also possible.  The two Neutrik SpeakON^TM connectors are recessed into the rear to allow for neat cabling, or even to stand the subwoofer on-end when used in installation environments where space is a premium. The EMS-115 can add low frequency power and extension to systems based around the EMS-61, EMS-81X or EMS-121X fullrange enclosures.  The EMS-115/115C requires active high/low pass filters and a single amplifier channel capable of delivering 800-1000W RMS into an 8 ohm load.  For best results the EM Acoustics AQ-10 or AD-9 amplifiers should be used.