Violectric DHA V590² Pro Headphone Amplifier, Preamp, and DAC - Manual (Page 57)

57
Filterkurven (aus dem Datenblatt des AK4490 entnommen)
Sharp Roll-off Filter / Long Delay
Sharp Roll-off Filter / Short Delay (Werkseinstellung / Default)
Slow Roll-off Filter / Long Delay
Slow Roll-off Filter / Short Delay