Compatible with - Any 100 - 200 Watt Siren System. Capable with Any 100 - 200 Watt Siren System. ✓ ✓ ✓ ✓ ✓ Speaker + Siren System. Super loud - This High Performance PA Siren Horn Speaker has a sound compression level of 125-135dB, 200 Watts, Impedance: 8 Ohms and a frequency range of 400-4000Hz.