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The SP series are high efficiency sound projectors designed to provide good speech intelligibility and background music in a wide variation of applications. They are all weather-proof treated to be used indoor as well as outdoor and are perfect suited to be used in large 100V broadcast systems such as train stations or airports. They all meet the IP56 Ingress Protection standard.The SP20HA is a high-efficiency sound projector with an RMS power of 10 Watt and is fitted with a 4" broadband loudspeaker. The power is adjustable by the integrated 100V line transformer with power taps for 10 Watt, 5 Watt, 2.5 Watt and 1.25 Watt.The HA version is especially designed for hanging purposes. The mounting of the speaker can be done by the standard attached 1.5m connection cable with steel core, which meets the safety requirements for ceiling mounting.Thanks to the weatherproof treated ABS housing with white weatherproof coated aluminum grill, the speaker has a IP rating of 56 whereby it can be used indoor as well as outdoor for a wide variation of applications.