Burning Amplifier Zero Feedback Gain Stage
- 1 x Burning Amplifier Zero Feedback Gain Stage PCB
Burning Amplifier 3 Gain Stage Board (BAGS-N). One board works for 2 channels.
The BA-3 gain stage is the latest feedback-less "front end" for the Burning Amp series of Class A Mosfet follower output stages.
- Illustrated Build guide for the BA-3
- The BA-3 gain stage can also be used as a preamplifier. See an interesting preamplifier build using the BA-3.
- Another example and build guide using the BA-3 gain stage as a line stage preamp: BA-3 preamp build guide
- Requires bias boards and output stage to be used as part of a Burning Amp
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
| Dimensions | 140mm x 70mm |
|---|---|
| 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!
