Bosch LBB 1903 Single Zone 30W Mixing Amplifier : Security Warehouse. Security Supplies. Cheap Prices for Texecom, Pyronix, Visonic, Scantronic, Honeywell, Online Security Products, Trade Prices, Cheap Suppliers of Texecom, Honeywell, Pyronix, Visonic, Scantronic, Cooper, Dedicated Micros, GJD, Voltek, Risco, Rokonet, Dualcom.