Bare PCBs

Hybrid Class D Preamp DAC Output Board 2025 Andrea Ciuffoli

This is the bare PCB set of  a stereo high-end DAC tube output stage, designed by audio expert Mr. Andrea Ciuffoli.  This is a new design in 2025.

Matisse Reference Tube Preamplifier Stereo Line-Stage Premium PCB

Pass Aleph 5 60W MOSFET Pure Class A SE Amplifier PCB – Mirrored Pair Set (2 Pieces)

JC-3 25W Pure Sound Class A Stereo Amplifier PCB One Set 2 Pieces

Tube pre-amplifier Regulator SP-10 premium grade PCB

834P Tube RIAA Phono Stereo Preamplifier Premium PCB – Very Musical

Pass Aleph 30 MOSFET Class A SE Amplifier PCB – Huge Mirrored Set (2 Pieces)

100W Mosfet Pure Class A SE amplifier PCB stereo pair

First Watt F1 5W SE MOSFET Balanced Output Class A Amplifier PCB Set – 3 Pieces

AN Kit-One 300B tube board kit one set 3 pieces

SE Class A MOSFET Unbalanced + 128 Step Volume Control Preamp PCB

EC-2 Tube Electronic 2-Way Crossover Stereo Premium PCB