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TPA3255, TPA3251 with Post Filter Feedback(PFFB)

I've got some more case work to do next week, so I set the unit up on the main rig this evening for a test run.
All I can say is I'll be selling the modded Ayima A07, this is a solid step up. Dynamics, soundstage, clarity and detail improvements are undeniable. Great job designing this board.
 
Hi everyone,

I need help configuring my TPA3255 amplifier from BLT to PBLT mode. I can see which pads need to be connected, but I’m not sure about the correct order of connections. I’ve attached a photo of my board. Could someone please clarify or even draw out the connections for me?

Thanks in advance!
Screenshot 2024-12-21 at 10.45.37.png
 
Has anyone successfully implemented a VU meter with this board without deleterious effects?
I'm at the point of machining the cover and would like to install one on this particular unit.
Thanks all...
 

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Hi everyone,

I need help configuring my TPA3255 amplifier from BLT to PBLT mode. I can see which pads need to be connected, but I’m not sure about the correct order of connections. I’ve attached a photo of my board. Could someone please clarify or even draw out the connections for me?

Thanks in advance!

This is usually described in the manual. Have you tried to download it from:
https://www.3e-audio.com/
 
I tested the completed unit on all 4 of my rigs the past few weeks. Have to report that my 3E unit plays for hours high output, without getting hot or loosing sound quality. I believe the machined bottom heat spreader alloy is a better implementation than top-mounted chip design with fins. Using 48v 10A SMPS delivers the goods.
 
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