One way to achieve a “green” solution is to reduce the bias current flowing through the output devices. This has two effects: it reduces the idle dissipation (good) but increases the crossover distortion (bad). By applying the THX patented circuit, it is possible to virtually eliminate the crossover distortion while retaining the benefits of lower power consumption.
To reduce the power wasted as heat while playing music, THX engineers used the well-known technique of using a tracking power supply to deliver only as much power as the music demands at any moment.
Tracking power supplies significantly reduce signal-related dissipation, but introduce distortion when the tracking power supply operates. Thanks to the THX AAA technology, this well-known distortion problem has been effectively eliminated.
This reduction in power consumption gives the cool-running AHB2 amplifier a compact footprint, while delivering stereo power of 100 watts per channel and 380 watts bridged into 8 ohms.
The green design requires no fans, and the cool operation increases the reliability of components.