Dynamic: In stock kits

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...

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...

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...

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...

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...

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

Included in this kit are the following semiconductors needed to complete an Aleph J amplifier. This kit provides for 2 channels (one stereo amplifi...

This is the Analog Crossover Network: LX Mini XO Kit. To purchase a complete kit or learn more about what the ACN can do for you visit the ACN Comp...

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...

This is Nelson's DIY H2 Harmonic Generator, Version 2. This kit consists of one PCB and two selected J113 JFETs, good for stereo operation.  You ca...

This is the Iron Pre from Zen Mod - limited quantities and hot off the press. There are two versions of the project: Balanced / Differential and Si...

This is the ACA Mini "Completion" kit, which provides a number of parts needed to complete the ACA Mini project. It does not include the PCB or act...

This is the Analog Crossover Network: Basic Kit. To purchase a complete kit or learn more about what the ACN can do for you visit ACN Complete Kit...

Noir is a unique low cost headphone amplifier project, comprised of three circuit boards. The entire Noir BOM is purchasable from Mouser in a singl...

An equalizer for full range speakers that addresses the common need for a bit of of a bump in the bottom end and a dip in the top. "Most of the ti...

Complete kits for Mark Johnson's VFET front ends. These are suitable for both the N and P VFET kits and will also drive other projects that are pla...

>>> Please note that tubes are not included in this kit <<< "A world-class, four-star 300B tube amp that should cost $20,000 bu...

A high-voltage, low noise, fully protected regulator for tube circuits T-reg is a high voltage regulator aimed at tube-level high voltage amplifier...

This high voltage delay for tube amplifiers was designed by Jan Didden of Linear Audio and published in the October 2019 issue of audioXpress. Why ...

"About a year and a half ago I released a power supply filter board and thump suppression relay circuit to go with the DIY Sony N channel VF...

Elekit TU-8550. Tubes are not included. For specifications please see this page.

The TU-8150 is the little brother to the TU-8200 and allows for both tube and opamp rolling so you can have fun tuning the sound to suit your own l...