Class-D amplifier module for installation inside the VIBE18-SUB Mk2 speakers All you need is a screwdriver and 5 minutes of your time to make the transformation, no technical skills required! High output power: 800Wrms @ 8ohm ~ 1200Wrms @ 4ohm Balanced / unbalanced line input/output (XLR) with volume control. 90-250Hz adjustable hi-cut filter for use in active subwoofers. Speakon output for optional passive 8ohm cabinet. (preferable same model) IEC input mains connector with integrated switch.