New to the range of High-Performance Dynamic Speakers for DCC Sound locomotives is the “Tornado Twin Short” by DCC SolutionsOne of their most popular and best-selling speakers the “Thunder” has been around since 2013 and it now finally gets some new additions to its line-up, a twin joined at the hip plus comes in a deeper speaker enclosure.The DCCS – " TORNADO TWIN SHORT " consists of two Thunder speakers installed in a precision engineered side-by-side short format single enclosure. The height of the enclosure has been increased to 12mm to create a larger sound chamber to increase the volume and bass output levels. The orientation of the speakers is that they are joined on the longer side creating a shorter but wider sized speaker enabling it to be installed in locomotives where this type of space is available.Don't be fooled by their size as these speakers show a significant improvement in sound quality over other speakers on the market and will provide a storming sound performance for a speaker of this size.Now with a 165% increase in the sound chamber size compared to the original “Thunder” speaker, the “Tornado Twin Short” has more air pumping space for each speaker to pump air rated at 69mm³ per speaker to dramatically increase the level of sound output.This twin speaker format is designed to be wired in parallel to provide 4-ohm impedance perfect for ESU LokSound decoders or can be wired in series to provide 16 ohms allowing it to be used with most brands of sound decoders.Unique features of the DCCS - "TORNADO TWIN SHORT" include:• Enclosure designed and manufactured by DCC Solutions• Fully sound tested for quality reassurance prior to sale• Enclosure markings “+/-” for easy parallel wire connections• Size with Enclosure: 26.00mm x 17.60mm• Height with Enclosure: 12.90mm• Nominal Power Output: 2 Watts• Impedance: 4 ohms• Frequency Range - 100Hz~20kHz• Sound Pressure Level - 73db• Max. Sound Pressure Level - 89db• Air Pumping Capacity - 69mm³ per speaker