Heed Audio Q-PSU, external powersupply
The Questars use an external "adaptor" powersupply to preserve unwanted electromagnetisc interferance within the chassis. The results could be improved by replacing the “adaptor” into the Q-PSU powersupply. This PSU is built around a massive 60 VA transformator with very low magnetic field and minimum dispersion. With the huge 40.000 μF condensators the PSU is able to give very rapid and clean power like only batterysystems could. Extreme dynamic changes will never be a problem again!