Thunder

• D&R Thunder is an add-on to any 100/200 watt siren amplifier to boost vehicle sound to the emergency vehicle primary siren
• Compatible with all vehicles primary siren tones
• Low frequency siren amplifier and speaker included
• Uses the primary siren speaker output wires and divides the frequency bands via selectable dip 
• External cancel controls through 12 Volt or ground deactivation

Thunder-1 kit includes:

• 1 x TH-LFA: Thunder Low Frequency Amplifier Siren Box
• 1 x 189-0200: Thunder Speaker
• Universal Mounting Bracket
  Note: Optional Vehicle Specific Mounting Brackets available (specify Vehicle year,  make and model)