About Lab.gruppen fP Series
After more than a decade of relentless touring, enduring the most demanding conditions imaginable, fP Series amplifiers have a hard-earned reputation for die-hard reliability and consistently superior audio performance.

The two flagship models of the fP Series, the fP 6400 and fP 3400, were the first to utilize Lab.gruppen’s proprietary Class TD® output stage, a patented technology that combines the efficiency of Class D designs with the sonic purity of Class B topologies.

Known for years as “the coolest amps in the world,” fP Series amplifiers are a solid investment in proven performance – one that will recover its cost time and again.