Audiolab 9000P 110 Watts Dedicated Stereo Power Amplifier (Silver)The logical development of the 9000Q preamplier raised the question of system expansion and thus led to the birth of the 9000P the dedicated power amplier option for the 9000 series. Technological Features A key to the audiolab performance is the Audiolab standard CFB (Complementary Feedback) topology, which ensures superior linearity and excellent thermal stability, as the idle current is kept independent of the temperature of the output transistors.