As a newbie to building anything electronic I am almost finished with a Tubelab SSE amp. Hopefully I won't run into any problems and it will sound good and look ok.
I'd like to build a Pass Labs amp.
The ACA kit looks like something I could build but I'd rather build something 'more'
Another member talked me into a BA-3 but after reading the building guild it seems like there are too many options that I just don't understand.
The F6 amp looks like the next level of difficulty up from the ACA to build. Is that true?
Can anyone offer suggestions?
I'd like to build a Pass Labs amp.
The ACA kit looks like something I could build but I'd rather build something 'more'
Another member talked me into a BA-3 but after reading the building guild it seems like there are too many options that I just don't understand.
The F6 amp looks like the next level of difficulty up from the ACA to build. Is that true?
Can anyone offer suggestions?
Respectfully, I'd suggest that if you built an ACA and understood thoroughly how it all worked, you'd be better off than most of us on the list were when we started (and then some). The important thing with the ACA is that it's completely documented as a standalone project and was designed as an intro that works....As a newbie to building anything electronic I am almost finished with a Tubelab SSE amp. Hopefully I won't run into any problems and it will sound good and look ok.
I'd like to build a Pass Labs amp.
The ACA kit looks like something I could build but I'd rather build something 'more'
Another member talked me into a BA-3 but after reading the building guild it seems like there are too many options that I just don't understand.
The F6 amp looks like the next level of difficulty up from the ACA to build. Is that true?
Can anyone offer suggestions?
Good luck !
Member 6L6 has threads on many pieces of Pass Gear incl the following links:
Pass F4 - Pass B1 - Pass F5 - Pearl 2 - O2 HPA - Pass Aleph J -Pass F5Turbo - BA-3 Amp - BA-3 Preamp -
F6
AmpCampAmp
You will find that these guides are very well photographed and carry .pdf BoM, schematics etc.
From my study of all threads it appears that the M2 is one of the most favoured amps for those who have deeper experience of Pass DIY amps.
The DIY on line store at the top of DIYaudio forum bar has heatsinks, chassis - even some electrical components for many of these designs.Tea-Bag has boards for the M2...they are very good. See here:
http://www.diyaudio.com/forums/grou...2-clone-boards-120mm-ums-spacing-tea-bag.html
Good luck.
Pass F4 - Pass B1 - Pass F5 - Pearl 2 - O2 HPA - Pass Aleph J -Pass F5Turbo - BA-3 Amp - BA-3 Preamp -
F6
AmpCampAmp
You will find that these guides are very well photographed and carry .pdf BoM, schematics etc.
From my study of all threads it appears that the M2 is one of the most favoured amps for those who have deeper experience of Pass DIY amps.
The DIY on line store at the top of DIYaudio forum bar has heatsinks, chassis - even some electrical components for many of these designs.Tea-Bag has boards for the M2...they are very good. See here:
http://www.diyaudio.com/forums/grou...2-clone-boards-120mm-ums-spacing-tea-bag.html
Good luck.
Members 6L6 and Teabag have very good guides on building the following:
Illustrated Build Guides - Pass F4 - Pass B1 - Pass F5 - Pearl 2 - O2 HPA - Hagerman Bugle 2 - Pass Aleph J - Me at BA '13 -Pass F5Turbo - BA-3 Amp - BA-3 Preamp -
F6
AmpCampAmp
Teabag has boards for the M2 - which is my recommendation - and can offer the main components. Grimberg also offers boards.
There is a lot of help on the forum from people who have built working Pass amps.
EDIT
The links on the "how to" stuff have not copied as live links....but they are easy to find. Open any of them and 6L6 has a linked signature to his considerable work!
Illustrated Build Guides - Pass F4 - Pass B1 - Pass F5 - Pearl 2 - O2 HPA - Hagerman Bugle 2 - Pass Aleph J - Me at BA '13 -Pass F5Turbo - BA-3 Amp - BA-3 Preamp -
F6
AmpCampAmp
Teabag has boards for the M2 - which is my recommendation - and can offer the main components. Grimberg also offers boards.
There is a lot of help on the forum from people who have built working Pass amps.
EDIT
The links on the "how to" stuff have not copied as live links....but they are easy to find. Open any of them and 6L6 has a linked signature to his considerable work!
Last edited:
Could you point to the schematic?
No, I can't; there's no official schematic. It's a new product. Some have back engineered it here. You'll have to search. It's literally 4 semis and a few resistors. 🙂
Aleph J was the very first amp I made, and it was successful thanks to excellent 6L6 guide. The hardest part was the casing and drilling. FET matching was much easier than I thought.
There are various Pass non-released designs and variations of the released designs. Clever and experienced DIYers try to 'back-engineer' them. These are totally unsuitable for the original poster's needs - even if they appear to be simple!
I would say M2. Very low parts count. Bias sets itself,
Only need to set offset as low as possible. Sounds swell!
Russellc
Only need to set offset as low as possible. Sounds swell!
Russellc
Viewing back to BAF- presented F7 idea- very interesting, if we could redesign.
My finally,last week, finished M2- TeaBag Boards is awesome!
With Toshiba SJ201/SK1530. Bias is 560mV across 0,33 Ohm.
I have pulled out the Aleph J to finish the M2, and not disappointed.
My finally,last week, finished M2- TeaBag Boards is awesome!
With Toshiba SJ201/SK1530. Bias is 560mV across 0,33 Ohm.
I have pulled out the Aleph J to finish the M2, and not disappointed.
I have the same question(s) as the OP.
Without reading 30 000 messages in the various threads, which designs/boards use easily available parts? i.e. not 'unobtanium' semiconductors, and preferably don't require buying dozen$$ of transistors in order to end up with a 'matched set' that won't go into thermal runaway?
Thanks!
Without reading 30 000 messages in the various threads, which designs/boards use easily available parts? i.e. not 'unobtanium' semiconductors, and preferably don't require buying dozen$$ of transistors in order to end up with a 'matched set' that won't go into thermal runaway?
Thanks!
if you want them all ,pcbs and critical parts matched and in one package , rest available in nearest grocery store , then here goes shameful plug


The discussion of "parts kits" in the store has come up from time to time. It might happen after the next batch of Jfets gets taken care of. (For one or two amps)
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