fP amplifiers are extreme in every aspect, and loaded with Lab.gruppen's leading technology, proven since many years: The super-efficient switch mode power supply - Lab.gruppen's proprietary design - reduces the weight without any effect on the audio signal, resulting in brilliant sound quality from the extreme lows to the very highs even under extreme, very difficult, conditions.

"The coolest power amps you can find", thanks to the Intercooler, a unique cooling system, enabling both safe long-term operation, even when driven to the limits, and improved sound quality at high levels.

The MLS feature lets the user "convert" any amplifier, as simple as it looks, into the perfect drive engine for the individual load impedance, high or low, providing the best possible control of the loudspeaker cones.

The flagship models, fP 6400 and fP 3400, incorporate the quantum leap in amp design: Class TD, Lab.gruppen's evolution of the common class D. They offer the high efficiency of class D, whilst avoiding all the usual drawbacks. Lab.gruppen simply sets a new standard! A complete and reliable protection circuitry is a must, and all Lab.gruppen amps include the ALS short circuit protection in their protection system.

All in all, the fP models are the reliable high quality companions both "on the road" and when permanently installed. Simply the best trouble-free investment you can make!