@Buconero117: The current Cayin amplifiers have nothing in common with PrimaLuna, other than both being built in China. PrimaLunas have different chassis designs, different circuits, different transformers, different parts, different quality control oversight. While early Cayin amps shared a similar chassis with PrimaLuna, Cayin no longer makes those amps.
@Pubul57: The Adaptive AutoBias circuit in PrimaLuna amps is an extremely sophistocated circuit that constantly monitors and adjusts bias according to operating variables inside the amp. It's not just a simple cathode-bias circuit found in the majority of "auto-biasing" tube amps, which can hinder sound quality.
Bias fluctuates during listening, depending on a number of variables. These flucuations can negatively impact sound quality as the bias drifts away from the optimal setting for the amp. Adaptive AutoBias monitors these changes and adjusts each individual tube according to its needs, ensuring all 4 tubes are always operating at peak efficiency.
A reviewer in England compared two identical PrimaLuna amps, one with Adaptive AutoBias, the other with manual bias, and noticed the unit with Adaptive AutoBias had dramatically better sound quality.
@Pubul57: The Adaptive AutoBias circuit in PrimaLuna amps is an extremely sophistocated circuit that constantly monitors and adjusts bias according to operating variables inside the amp. It's not just a simple cathode-bias circuit found in the majority of "auto-biasing" tube amps, which can hinder sound quality.
Bias fluctuates during listening, depending on a number of variables. These flucuations can negatively impact sound quality as the bias drifts away from the optimal setting for the amp. Adaptive AutoBias monitors these changes and adjusts each individual tube according to its needs, ensuring all 4 tubes are always operating at peak efficiency.
A reviewer in England compared two identical PrimaLuna amps, one with Adaptive AutoBias, the other with manual bias, and noticed the unit with Adaptive AutoBias had dramatically better sound quality.