Lab.gruppen fP 3400 The fP Series power amplifiers are lightweight, efficient, and powerful. With a regulated switch mode power supply, gain sensitivity selection, and sophisticated protection circuitry, we believe that they are the best choice for use with Adamson Speakers. Our two companies have had a long track record and have partnered to insure continued cross-user compatibility. 2 X 1700W @ 2 Ohms Download the Technical Specifications