The second half of the OptiGain®circuit is the power buffer stage where solid-state technology is combined
with a thermionic electron valve phase-separation circuit. Simply put, where power buffer is required, well-implemented solid-state circuitry usually surpasses the performance of even the best circuits employing the
rmionic electron valves of readily available and domestically safe-use types.
The power buffer stage uses AMR's "Class X: Jikoda circuit" with bipolar output devices, which in real-time, simultaneously detects and cancels unwanted artifacts in the audio signal: none pass to effect the playback
of music, exceeding the ability of even traditional well regarded Class A circuitry.