The AMP3300 is a Class A amp that features an extremely pure singled-ended circuit with each one single transistor for the non-inverting and inverting lines, that handles all music signal processing. Earlier class A amps were inefficient and had extremely low output and generate considerable heat when operating, but the AMP3300 uses a load effect free (LEF) circuit to successfully combine high-efficiency power with high-quality pure class A amplification. The primary technology of the LEF is to avoid various sources of nonlinearities. IGM Volume Control

     To avoid signal loss with volume control, the AMP3300 adopts newly developed intelligent gain management (IGM). The IGM volume is adjusted by controlling the gain itself without signal waste using teardrop-shaped knobs located in the center of the amp. The AMP3300 uses no mechanical volume resistors, attenuators, or CMOS-type volume adjusters. As a result, complete channel balance, high precision, and a performance that will not change over time are achieved.