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500W (4ohm) GaN Class D Modules - Starkrimson Ultra

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orchardaudio

orchardaudio

Member
Joined 2017
orchardaudio.com
Doing some listening with Paradigm Monitor 9 speakers.
 

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PScal

Member
Joined 2010
I'm mostly done with the surface mount parts on my boards. I treated myself to an HDMI microscope to aid in this and future builds. It has made populating the boards an enjoyable task. I have a few parts on backorder until late August. My plan is to finish the surface mount parts, then do the case work while I wait.


I hope to have the build complete some time in September.
 
J

johnnyk9

Member
Joined 2009
Have you posted any phase plots?
I’m just curious as I have been reading about Technics GaN implementation about higher switching speeds.
Not that I’m unhappy, your amps are spectacular, I got my mono block for my center channel built yesterday. Put it in a slim Ghent case, just missing your beautiful logo : (
 
orchardaudio

orchardaudio

Member
Joined 2017
orchardaudio.com
johnnyk9 said:
Have you posted any phase plots?
I’m just curious as I have been reading about Technics GaN implementation about higher switching speeds.
Not that I’m unhappy, your amps are spectacular, I got my mono block for my center channel built yesterday. Put it in a slim Ghent case, just missing your beautiful logo : (
Click to expand...


GaN Amplifier Module - Orchard Audio

Scroll down to test results section. Phase plots are posted.
 
P

PScal

Member
Joined 2010
Here is an Fyi for builders who want to utilize both balanced and unbalanced inputs. I had a small troubleshooting session after realizing my amp was a bit noisy at idle when using XLR inputs, with RCA shorting plugs in place. I removed the RCA wiring and jumped the unbalanced input at the terminal block. The noise went away. Then, I changed the RCA wire to a shielded one. This resolved my issue.
 
M

maglito

Member
Joined 2020
PScal said:
Here is an Fyi for builders who want to utilize both balanced and unbalanced inputs. I had a small troubleshooting session after realizing my amp was a bit noisy at idle when using XLR inputs, with RCA shorting plugs in place. I removed the RCA wiring and jumped the unbalanced input at the terminal block. The noise went away. Then, I changed the RCA wire to a shielded one. This resolved my issue.
Click to expand...

Can you share your complete alternative parts list that Leo gave you? I'm considering just wall mounting the boards. I'd be fine with just a metal sheet with the stand-off holes pre-drilled and all the connectors necessary.
 
P

PScal

Member
Joined 2010
I am under an NDA for the parts list and want to be respectful of that. If Leo confirms that you are also under the NDA, I will help out however I can via PM.


Leo also mentioned that he's updated the BOM since my build. Possibly the new version has more parts availability.


Take care!
 
M

maglito

Member
Joined 2020
I have the boards from you already. I was just looking for an inexpensive way to get it connected. I'm not even sure I will do an enclosure, but I certainly need all the connectors, and I would love it if I could get a sheet with pre-drilled holes for the standoffs.
 
orchardaudio

orchardaudio

Member
Joined 2017
orchardaudio.com
maglito said:
I have the boards from you already. I was just looking for an inexpensive way to get it connected. I'm not even sure I will do an enclosure, but I certainly need all the connectors, and I would love it if I could get a sheet with pre-drilled holes for the standoffs.
Click to expand...

I provided a drawing that shows all hole locations. Did you not get it? Email me, I'll send it to you.
 
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