This FM255 preamplifier is from the direct version of the extract the most essential part of the beautiful sound function line part.
Reduce a lot of unnecessary interference links to remove those chicken coercive function to make this preamplifier more professional play should be pure tone listening sense than the direct version of more listenable more charming.
The use of imported arrow pig transformer, ELNA electrolytic capacitors, imported APLS 27 type volume potentiometer.
Support balanced output and RCA output, two groups of RCA input options.
Front panel functions are source input selection, output phase switching, left and right balanced volume control total volume control, power switch.