This is the bare PCB of a tube-based line stage pre-amplifier board with reference to the legendary classic Marantz model 7c line session. Marantz 7c is one of the most musical preamplifier in the audio history. The board has placed extra attention to small signal routing to guarantee an ultimate audiophile grade performance.
PCB dimension : 212mm x 176mm
PCB thickness : Super thick 2.4mm !!!, 2 oz ( 75um thickness !!) copper deposition, gold plated surface, double size solder masking for life-long durability.
