Popular products

This is Nelson Pass's recommended power supply for the Amp Camp Amp. Now available for immediate sale. It gives you more power and less noise than...

Problem: You need to use something to go between your transistors and heatsinks so they can transfer heat efficiently. Thermal grease is a pain in ...

A range of matched JFET offerings suitable for do-it-yourself audio projects. Learn more about the matching requirements or Idss choice for your pr...

This is the line stage Wayne Colburn presented at Burning Amp 2018. Read more about it in the Wayne's BA 2018 Linestage discussion thread on diyAu...

This pack includes one Soft Start Board and one Speaker Turn-On Delay and DC protector board.  They are not available for purchase separately. Soft...

This set of circuit boards will make the Aleph J amplifier of Nelson Pass. This amplifier is a direct descendant of the legendary Pass Labs Aleph 3...

The WHAMMY Class-A headphone amplifier Wayne Colburn, the genius at Pass Labs who for the last 25 years has designed essentially all the things ...

A premium back panel parts kit, plus PCB / Transistor / Diode mounting parts kit for the deluxe chassis. For June 2021 we have upgraded the binding...

At Burning Amp Festival 2017 Nelson presented a version of a pre-amp using the Korg Nutube dual triode. We now have the latest version of this circ...

You want to build a preamp, a DAC, a phono stage, anything that needs a nominal supply voltage between 3.3V and 18V or even more, positive and/or ...

This pair of F-5 Clone circuit boards use the same circuit as the Nelson Pass / Firstwatt F-5 model.  This is V3.0 of the boards, and it should be ...

The PO89ZB, an inline DC filter for SMPS wall warts, preamps, HPAs, Korg NuTubes, B1, etc.   This filter is limited to single rail 48V DC, 3A appli...

Get the good vibes by keeping the bad vibes at bay! This kit includes 4 feet (height: 21.5mm). You will need to drill your own holes in your cover ...

This is the ACP+ (Amp Camp Pre-Amp + Headphone Amp) PCB, as built at Burning Amp Festival in 2019. PCBs ($25) The pre-amp PCB along with the ground...

The DIY BIAMP 6-24 kit is a stereo analog active biamp crossover circuit designed for high flexibility. Featuring 12 discrete Jfet buffer circuits...

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 ...

This is the ACA Mini "Essentials" Kit, which provides the bare essentials you would need to get started with the project.  Learn more and discuss t...

This pair of M2 clone cicuit boards, use the same circuit as the Nelson Pass / First Watt M2 amplifier. However, the first "buffer" stage of amplif...

This set of circuit boards is used to make the F-5 Turbo power amplifier from the mind of DIY hero and audio genius, Nelson Pass. One set of PCBs w...

Among the appreciations of DIYers is stuff that works simply, well, and cheap, not necessarily in that order.  This project is an effort to as...

The Galaxy line makes a great home for small projects and has handy multi-purpose quasi-heatsinks on the sides. The top and bottom covers and made...

We're happy to announce the immediate availability of this new collaboration between Pete Millett and diyAudio, an updated version of the classic...

This pair of F-4 Clone Boards use the same circuit as the Nelson Pass / Firstwatt F-4 model. Circuit description The F4 is a Push-Pull, Class-A, Mo...