Open Mind Audio
Active Member
Fingers crossed my 15-month-old PA 5 is still working 100% fine, with about 3 hours daily use 4-6 days a week. (Set up in desktop config.)
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Topping PA5 Review (Amplifier)
- Thread starter amirm
- Start date
anli
Member
- Joined
- Oct 20, 2021
- Messages
- 82
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- 23
Agree. Am thinking about getting PA5 II, but don't know if it free from issues.
gamerpaddy
Member
they moved the heat producing components out of the potted modules, the only way they now get heat cycled is by the temperature rise in the interior of the amp. which isnt as strong and you got a little more convection. the potting compound may not contract/expand as much as the "active" module so they should last much longer this way... but if they ever fail its for the same reason. no compound would be the ideal solution. they could just have welded those cans shut and leave air inside to protect their IP without causing these issues
solderdude
Grand Contributor
return it under warranty.
If potted modules are such a bad thing then why have them in the PA5 II
daniboun
Major Contributor
If done in the state of the art no problem...in the PA5 II the op amps are now "out of the box"
TBF their implementation is quite in the SOTA ball park in terms of transparency, but then at least I would say it fails in designing with the heat dissipation in mind
daniboun
Major Contributor
Found this interesting but I have no idea what materials are used in the PA5 II / PA5
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Killingbeans
Major Contributor
It's an attempt at giving the product some allure. "We've designed something very special, that the competition will surely try to copy, so we had to protect it!"
Standard marketing BS, nothing more. Really dumb...
The only good reason for potting is to weatherproof outdoor electronics.
CaptainCoolwater
New Member
- Joined
- Oct 3, 2023
- Messages
- 3
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- 3
How was the PA5 vs A20a?
I'm considering getting the PA5 II Plus or A20a (2022).
Hmmm... I think the main text of reviews should be updated when widespread problems emerge.
Luckily I decided to check latest posts and found out about the failings.
I would be interested in a similar class of product. Any good suggestions for something reliable?
Luckily I decided to check latest posts and found out about the failings.
I would be interested in a similar class of product. Any good suggestions for something reliable?
ShadowNeko
Member
- Joined
- Feb 28, 2020
- Messages
- 58
- Likes
- 34
My PA5 that i bought in Aug 2022 started having crackle in the left channel today.
As they say elsewhere, it has finally burned in.
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it feels like I saw in the Thrustmaster joystick sensor issue: it's not whether it will fail soon, it's a matter of how long before it will fail
gamerpaddy
Member
pm me @ShadowNeko if you want a replacement module to fix your pa5. still got a few.
If I have one of these original units that has never been out of the box/hooked up, is there anything to do that would keep it from developing an issue once I put it to use or is it a luck of the draw kind of issue?
solderdude
Grand Contributor
Or to improve mechanical rigidity to protect aginst severe vibrations.
Having read the recent sad stories, I feel and realize the "hopeless difference" between the companies and their QC and liability policies/practices.
Please refer to my post here.
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