Topp Pro KS-HD18A 4000W Active Subwoofer das If you use an amplifier

If you use an amplifier on stage it must be full bandwidth

Hosa keeps a steady eye on the basics

8O/ 1KHz /1% THD Continuous 4140W

use of all the effects

•The convenient center holes in the MTZ11's body make it easy to access any tool you need

Topp Pro KS-HD18A 4000W Active Subwoofer das If you use an amplifierDescription System Type: 18" Active Vented Subwoofer Power Rating: 2000W Program 4000W Peak Transducer Low: 18" Ferrite Woofer, 3" (76mm) Voice Coil with Long Excursion Frequency Response( 6dB): 40Hz 120Hz SPL: 130dB DSP Presets Modes: BOOST EXTENDED LF NORMAL Crossover Frequency: 80Hz 100Hz 120Hz selectable Electronic Protections: Over heat Protection Short Circuit Protection Digital Compressor Cooling: Temperature controlled fan Connectors: Input: