The Hifonics Brutus BXi Series provides one of the most economical ear-shattering audio power plants available on today’s market. If it’s SPL you are looking for, then look no further. Teamed with a Zeus ZXi Series amplifier for your Front & Rear speakers, these Super D- ClassTM monsters might break your neighbor’s windows. Hifonics has perfected the latest in Super D-Class digital chip technology to provide you with an extremely efficient, low temperature, high amplification system that others only dream about.