Waltman Single-Stage Parallel Class A FET Buffer Finished DIY Board

Options:
 

1. Assembled Board
2. Assembled Board Without Main Filter
3. Empty Board
4. Connectors/Heat Sinks

This circuit benefits from the high input impedance and low output impedance of FETs
Audio signals can be transmitted with low resistance, ensuring authentic and uncolored music reproduction

The Wolman single-stage parallel circuit offers excellent frequency characteristics
Slightly warm yet clear and delicate, with crisp and clean sound
Excellent low and high-frequency extension, along with a wide dynamic range
Noticeable improvement in midrange, enhancing the overall audio quality and layering


↑ With jumper cap installed: Use AC power supply with dual 22V to dual 26V
With jumper cap removed: Can connect to other DC power supplies, with an input voltage range of DC ±22V to ±35V
Ideal for setups lacking an AC power source
For higher DC voltage applications, please contact us


The main filter capacitors are not fixed; default configuration includes 4 pieces of Elna RJD
Any changes will be confirmed upon notification


This board is configured as a buffer by default and can be slightly modified to function as a pre-amplifier
Operating in Class A, to maintain power stability and improve R-L separation
The board is designed with an independent mono-channel regulated power supply