they are playing....
Folks:
I had the privilege of not just attending BA19 but also being the first to sign up for the ACP+ build session that Saturday. What a thrill! I wanted to finish the project with a pretty chassis but have been distracted by other matters for the past couple of months. My schedule recently cleared up and I found the time to focus on the ACP+.
Kudos, as always, to the esteemed Nelson Pass. That man is consistently amazing. Thanks to 6L6, whose organizational skills were on display at the festival and undoubtedly help him stay up in the air when at work. Thanks as well to genechow, whose .fpd file for the front panel was a great leg up on the design front and, last but not least, thanks to vdi_nenna for letting me use his drill press today to fix the mistake I made in my front panel design.
The power supply consists of a Hammond 229B34 transformer, four MUR820 diodes, three Panasonic FS series 2700 uF caps, a Hammond 155B choke and two more of the Panasonic caps. Vanishingly low ripple.
The ACP+ sounds great! Now all I have to do is think up an excuse for buying a pair of headphones....
Regards,
Scott
I had the privilege of not just attending BA19 but also being the first to sign up for the ACP+ build session that Saturday. What a thrill! I wanted to finish the project with a pretty chassis but have been distracted by other matters for the past couple of months. My schedule recently cleared up and I found the time to focus on the ACP+.
Kudos, as always, to the esteemed Nelson Pass. That man is consistently amazing. Thanks to 6L6, whose organizational skills were on display at the festival and undoubtedly help him stay up in the air when at work. Thanks as well to genechow, whose .fpd file for the front panel was a great leg up on the design front and, last but not least, thanks to vdi_nenna for letting me use his drill press today to fix the mistake I made in my front panel design.
The power supply consists of a Hammond 229B34 transformer, four MUR820 diodes, three Panasonic FS series 2700 uF caps, a Hammond 155B choke and two more of the Panasonic caps. Vanishingly low ripple.
The ACP+ sounds great! Now all I have to do is think up an excuse for buying a pair of headphones....
Regards,
Scott
Last edited:
SRMCGEE,
Great work! With LSJ74s, that thing should sound pretty sweet and about as good as any of the designs on the forum here.
Cheers,
Greg
My take on PassLabs XS Pre
After almost 2 year building it is now finished: 'My take on the PassLabs XS Pre'.
Early 2018 I discovered the XS UGS module on the PassLabs website and only then I discovered their most prestigious XS line of products. This started the idea of building one myself, because I was in the need of a good balanced preamp. A lot was already known about the various UGS modules and I started with building that XS UGS. I got a lot of help from my friends in India and Germany
And in a process of around a year we had all the schematics drawn. I made good progress in Kicad PCB design, it's a steap learning curve, and PCB's were made.
After that I changed jobs and had barely time to finish this great learning project, but now, after everything settles down in my new job, I could made more time to finish and build everyting in a nice enclosure.
I designed the frontpanels in Frontpanel designer and Modushop produced these fantastic quality panels for me. The PSU frontpanel was even on BAF2018
I like to thank Papa and Wayne for their great designs and don't worry this was a project just for me. I will not share any schematic of this wonderfull amp.
So people plz don't ask... Here are some photos... I can post more of the build proces if someone wants to see it.
And yes, it can drive a F4
And yes, it is the best sounding preamp I have ever heared, it completely destroys my old SE DCB1.
After almost 2 year building it is now finished: 'My take on the PassLabs XS Pre'.
Early 2018 I discovered the XS UGS module on the PassLabs website and only then I discovered their most prestigious XS line of products. This started the idea of building one myself, because I was in the need of a good balanced preamp. A lot was already known about the various UGS modules and I started with building that XS UGS. I got a lot of help from my friends in India and Germany
And in a process of around a year we had all the schematics drawn. I made good progress in Kicad PCB design, it's a steap learning curve
, and PCB's were made.After that I changed jobs and had barely time to finish this great learning project, but now, after everything settles down in my new job, I could made more time to finish and build everyting in a nice enclosure.
I designed the frontpanels in Frontpanel designer and Modushop produced these fantastic quality panels for me. The PSU frontpanel was even on BAF2018
I like to thank Papa and Wayne for their great designs and don't worry this was a project just for me. I will not share any schematic of this wonderfull amp.
So people plz don't ask... Here are some photos... I can post more of the build proces if someone wants to see it.
And yes, it can drive a F4
And yes, it is the best sounding preamp I have ever heared, it completely destroys my old SE DCB1.
