Tube stereo preamplifier using 6922 huge soundstage MFA reference bare PCB !

This is a bare PCB of a tube preamplifier with the gain section reference to MFA reference. MFA Reference was well-regardless as an preamplifier that has massive soundstage and rich of low-level musical information.

Each board consists of two channel thus one board can be used for stereo application.

We provide schematic to buyers by EMAIL.