The KW153 active speaker builds on the power and finesse of the K12 but introduces a 6.5" mid driver and the low frequency driver is enlarged from 12" to 15". This three way speaker gives you that BIG three way sound. Made of the same birch enclosure as the KW181 subwoofer this active speaker provides 1000-watts Class-D power (2000 watts peak) at 75 degrees of dispersion. When you need that full body thumping sound the KW153 easily match your requirements.