Acoustic emitter (passive acoustic column) SEL SP 157-ASP of increased power is used to reproduce acoustic noise signals.
Has a regulator of the level of the emitted signal (under a screwdriver), located on the rear panel.
Technical specifications: Band of reproduced sound frequencies from 90 Hz to 11200 Hz Resistance 12 Ohm Emitted power max. 10 W Built-in radiation level control Overall dimensions 180x150x75 mm Weight 500 g