1.Finished Board with Panasonic & Nichicon Array Filter Capacitors
2.Finished Board (excluding filter capacitors)- Does not include main or secondary filter capacitors.
3.Semi-finished Board - Comes with 718 resistors and diodes pre-soldered. Includes a full set of: potentiometers, connectors, rotary encoder switches, heat sinks with screws. Excludes all capacitors, transistors, and three-terminal voltage regulators. Documentation and debugging instructions for other components are provided.
4.Potentiometer Mounting Board - See picture description
5. Complete Type-27 Potentiometer Set - See picture description
6.Blank PCB with Plated-Through-Holes (PTH) / Includes Component Kit - A full set of connectors, rotary encoder switches, and heat sinks with screws is included.
7.Blank PCB Only with Gold-plated Through-Holes
8.Finished Board with BC Axial Filter Capacitors
Based on the Swiss Goldmund 27 reference preamplifier.
This European-style preamp board is highly favored by audiophiles.
It delivers a noise-free background, with a wide, clear, and full soundstage, deep and powerful bass extension, and a strong sense of immersion.
PCB dimensions: 200 × 240 × 35mm (H)
Originally designed with a shared power supply for both channels, it has been upgraded with independent regulated power supplies for each monaural channel.
Dual-channel shared power supply: AC 40-0-40
Monaural independent power supplies: AC 40-0-40, AC 40-0-40
Features an auxiliary regulated power supply for peripheral circuits. For all wiring details, please refer to the diagram below.
