I Just completed a 6 channel Starkrimson, with boards spanning 3 different revisions. Originally 4 of these were powering my main speakers, but I need more power for those, so they have been re purposed into this 6 channel build. It is powering my side surrounds and atmos speakers. All measurements were taken with a QA-403, and every amp hits specifications no problems! Channel 6 idle noise is a bit higher then the rest, and some mains leakage due to the proximity of the IEC connector, but nothing audible.
The difference from running the 6 speakers from my Yamaha RX-A6A to this amp is night and day, and I honestly was not expecting such a drastic change.
3 channels each are powered off of a Microaudio SMPS630-SO power supply, which I have used before in my Class AB Wolverine amplifier builds, and are fantastic low noise high power supplies!
Thanks to @stuartmp for The ground lift and T-ground PCB's
Thanks also to @Cresnet and @orchardaudio for making such great products available to us!
Awesome, congrats.
Again, I am speechless about the build quality.I Just completed a 6 channel Starkrimson, with boards spanning 3 different revisions. Originally 4 of these were powering my main speakers, but I need more power for those, so they have been re purposed into this 6 channel build. It is powering my side surrounds and atmos speakers. All measurements were taken with a QA-403, and every amp hits specifications no problems! Channel 6 idle noise is a bit higher then the rest, and some mains leakage due to the proximity of the IEC connector, but nothing audible.
The difference from running the 6 speakers from my Yamaha RX-A6A to this amp is night and day, and I honestly was not expecting such a drastic change.
3 channels each are powered off of a Microaudio SMPS630-SO power supply, which I have used before in my Class AB Wolverine amplifier builds, and are fantastic low noise high power supplies!
Thanks to @stuartmp for The ground lift and T-ground PCB's
Thanks also to @Cresnet and @orchardaudio for making such great products available to us!
It's one of the best I have ever seen.
Thanks for sharing
Nice Build.I’ve named it The Sleeper.
Classic Hitachi lateral TO3s on the back for bling.
Meters aren’t moving, yet, but I couldn’t resist an audition.
Sounds great. A little mains hum that I will track down later, but it’s not noticeable more than a foot away.
Big Summer Amp is live.
I really like those Mosfets, they remind me of that Maplin 100W ampliifer!
Thank you! That was a fun build and I’ve been using it in my main system lately. Currently it’s powering the low half of a DSP 2-way crossover system. An ACA Mini is powering the upper half.
I have a soft spot for those old Hitachi laterals. I know the Maplin iterations were pretty well regarded.
I have a soft spot for those old Hitachi laterals. I know the Maplin iterations were pretty well regarded.
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First test of these very new modules from @Erica.C is positive so far!
Silent background and playing through my test speakers very well.
I’m planning a 6-channel amp build with these for 3-way crossover work.
Edit: sounding REALLY good. I’m impressed.
Silent background and playing through my test speakers very well.
I’m planning a 6-channel amp build with these for 3-way crossover work.
Edit: sounding REALLY good. I’m impressed.
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Good to hear they are good!Preliminary testing has graduated to the main system. Tape Plank Amp sounds very good with my Manzanitas, ACP+, E30 DAC, and SlimDevices Squeezebox! 🤗
Do you have any objective measurements to compare it to other amps?
Cheers.
I’m in the process of building a sub $100 budget class D amp in an old Adcom gfa535 chassis. The amp consists of a pair of $15 L15Dsmd(irs2092) boards, a pair of $20 switching power supplies, $15 worth of surplus caps and a few bucks worth of wire and connectors.
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