Mr Zdzisław was able to achieve the incredible amplifier_DM 250 test

Amplifier test on Positive Feedback. Author: Wojciech Pacuła, July 2018.

Mr Zdzisław was able to achieve the incredible amplifier – it is beautifully intense, dense, but it does not blend everything into gruel. Its trebles, have exceptional ease in filling the bandwidth without brightening or sibilants. The bass is majestically profound and powerful, although it does not compete with the best with it’s control and selectivity. It creates just a good background and a foundation