Electro-Voice ELX118 Subwoofer 100741951 These "spikes" are what trigger

These "spikes" are what trigger feedback as the floor monitor volume is increased

Its active design features isolated inputs

Headset Condenser MicrophoneAffordable wireless cardioid condenser headset microphone for speech and vocal performance applications offers long-wearing comfort and reliability

3-pin DMX Out

Max height: 9 ft (2

Electro-Voice ELX118 Subwoofer 100741951 These "spikes" are what triggerElectro Voice ELX118 18" Passive Subwoofer Optimized for performance with the ELX112 and ELX115, the ELX118 adds a full, deep, low frequency punch that you can hear and feel. Features: Designed for House of Worship, Pro Music, and other applications. 18" woofer provides extended low frequency output 32 Hz 200 kHz frequency range 96 dB SPL sensitivity; 134 dB max SPL 400 W continuous and 1600 W peak power handling Rugged wood cabinetsupports pole