Burning Amplifier Complementary Bias & Output Stage
- 2 x Burning Amplifier Complimentary Output Stage PCBs
- 2 x Burning Amplifier Complimentary Bias PCBs
This output stage can be used along with your choice of gain stage to create a Burning Amp.(See the Configuration Guide linked below)
The boards are the output-pair-per-channel configuration recommended by Nelson Pass. If you want more output devices to make a truly massive amplifier, you will need to order an additional complete set.
Please visit the Burning Amplifier Helpdesk Thread for any questions you might have and for a definitive list of links to all articles and discussions about the Burning Amps.
Additional Information
- Bill of Materials
- Schematic (PLEASE NOTE This schematic, which is Nelson's original, incorrectly shows 12xIRFP240 output devices. This design uses 6xIRFP240 and 6xIRFP9240. Please study the BOM and PCB part placement very carefully!)
- Dimensions
- Burning Amplifier Configuration Guide
| Dimensions | 50mm x 50mm |
|---|---|
| Mounting holes | UMS Heatsink Compatible |
| Layers | 2 |
| Board Revision | 2.0 |
I've built it with 32V rail and 0.47ohm source resistors this does produce a lot of heat. Make sure you use big heat sinks with this combo. This amp sounds really good with ACP+ or Wayne's 2018 Linestage, clean, detailed and musical. It has no issue driving a pair of Boland Accoustic BTX180 made by Peter Boland of NZ. These are 4 ohm demanding speakers but the amp drives them effortlessly.
quality sound, this preamp is a highly recommended upgrade with my F5 turbo amp and the wilson watt puppy
Simple project, magnanimous sound!
Excellent PSU is a must. The PSU for the Bride of Son of Zen is adequate and sounds great at +-28 Vdc, but I opted for a Sigma 22 design at +-30 Vdc.
Board from diyaudio store is excellent! Fast shipping too. Overall, a great experienced on this project. Very satisfied!!
High quality board and good sunding preamp.
BA3 is one of the best sounding preamplifier that I ever built.
I got ten pairs of J77 & K214 MosFets, so I keep 3 BA3 PCBs for spare.
The BA-1 Monoblocks are finished. Beautiful sound - a bit special - perhaps the single ended class A concept.
I like this amp!
