Turning the HiFreq screw clockwise lets high-end transients (like the "crack" of a snare) pass through uncompressed.
High peak reduction creates a "pinned" sound that stays front and center. cla2a compressor crack hot
To get a "hot" sound, feed the plugin a signal peaking near 0 VU (approx. -18 dBFS in your DAW). PRO MUSIC, s.r.o. Analog Switch: Ensure the Turning the HiFreq screw clockwise lets high-end transients