Jc-120 Schematic

If you attempt these mods, study the schematic first .

The JC-120 schematic is a complex layout that features a dual-channel preamp, a four-stage power amp, and a comprehensive EQ section. Here's a breakdown of the schematic: jc-120 schematic

Early revisions used discrete transistors, while newer models (like the JC-120H) utilize OpAmp-based gain stages for consistent clean headroom. If you attempt these mods, study the schematic first