Digital Control of Attenuation – Repository for DIY
I’m starting this thread in the Pass Labs sub-forum, because I think there is a need for this information here, and because the idea for a digital attenuator came while building the excellent Iron Pre...
View ArticleWayne's BA 2018 linestage
Any thoughts or comments on Wayne's linestage presented at BA 2018? It looks like an economical high performance design with a couple of nice options (like a beefier output if needed) I'm a terrible...
View ArticleBuilding a Pearl 2
Here is a visual log of how I built my PassDIY (Designed by Wayne Colburn) Pearl 2 phono amp. I happened into a pair of boards when I was at Burning Amp this year, and as I just finished building a...
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Babelfish XA252 / Babelfish XA252 SIT / Babelfish XA252 SET
Few years ago, we had enormous fun in funny named thread : F4 Beast Builders Well, you can call it Group of Hysteric Housewives Brainstorming Result of that was that I had myriad of back of napkin...
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The F5Pi -- F5P Voltage Gain Stage + M2 Output Stage = Perfectly Integrated
It is finally done -- an integrated amplifier using a F5 frontend and the M2OPS. Patrick
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Zenductor
Hi Is it possible to find out a little more about the Zenductor before the upcoming Burning Amp ? Thanks Eric Zenductor ```````````````````````````````````````````````````````` (EDIT) @6L6 here, Eric...
View ArticleFirst Watt F7 review
Saw article on 6moons on upcoming F7 review... Looking forward to it. Alex
View ArticlePictures of your diy Pass amplifier
Hi everybody, this is a special request, as the gallery section of the passdiy is no longer available for the moment, if you have build an Nelson Pass amplifier can you post pictures of it. It will...
View ArticleUDP3: Umbilical Cable Driver for Pearl 3 phonostage -- move Pearl 3 PSU into...
Fourteen days ago, on October 1st, Wayne Colburn presented his Pearl 3 phonostage design at the 2023 Burning Amp Festival. Today I'd like to unveil "UDP3", a PCB which makes it relatively...
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The Pass Pub: The High-End Off Topic Thread
Happy New Year ! to Papa - ( I don't wanna bug ya on personal e-mail ) : I wish ya many more ..... to all spoiled kids - good Health ....... and mucho active brain cells in next year (I'm going now ,...
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Pearl 3 Burning Amp 2023
Here is a PDF of of the Pearl 3 from Burning amp 2023 for those of you whom already have circuit boards. EDIT: Video presentation on Pearl 3 for BAF '23 can be found here -...
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Threshold 400A. L/R Channel out and fix
When i first opened for visual, no supply fuse. Toasted resistor divider which goes to lower 4 A6 pnp devices. Did a quick continuity check looking for CE shorts on A6s. Found 3 with BC Shorts. As...
View ArticleThe F6 Revisited
A little over a month ago I mentioned wanting to start a new PCB for the F6 that included some common and not-as-common tweaks that have found there way into the diyAudio community. This idea received...
View ArticleDIY ACA mini
The DIY ACA mini (Amp Camp Amp mini) is in the process of shipping to the Burning Amp Festival lottery winners and a few of the helpers and associates. I am pleased to present the DIY ACA mini article...
View ArticleBride of Zen output problem
Hi, I cant find solution myself, so... Bride of Zen build, almost all parts like original, except power supply transistor is bd239. Volume pot is 5Kohm, pot wiring is checked (output + in pot wiper)....
View ArticleAleph J
Hello, I'm new here and am considering building an Aleph J. Looking for advice regarding advantages or gains in using dual power transformers. Thank you all in advance! Peter
View ArticleIron Pre Essentials Kits For The DIYA Store - Register Your Interest
The Iron Pre is now listed in the diyAudio store for anyone to purchase. No codes or tricks needed. Until the 'Build Guide / Build Thread' is created, this post will contain all current schematics and...
View ArticleLm338 for Aca mini
I have a bunch of lm338 left over from an old project. Would an lm338 make good sense for powering an ACA mini? Would a cap mx be superior? Cap mx + lm338 overkill?
View ArticlePass F5m
Based on the circuit shown by Papa at the BAF 2023, I have built the F5m using easily modified DIYAudio Store F5 boards from long ago. I installed the boards on my prototyping chassis configured to...
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