Killingbeans
Major Contributor
IPA won't do anything. Acetone might work, but it's risky. It would probably also begin to delaminate the PCB at some point.
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Topping PA5 Review (Amplifier)
- Thread starter amirm
- Start date
IPA won't do anything. Acetone might work, but it's risky. It would probably also begin to delaminate the PCB at some point.
Craftsmanship is not part of the value proposition. You get inexpensive goods that perform quite well, but not for very long. Reminds me of a Solo cup.
gamerpaddy
Member
no it doesnt
but i forget to turn it off almost every time since its so quiet when nothing is playing. its then running for days until i notice it
you could put it on a master-slave outlet where as your preamp is your master and switches the amp when you turn it on.
but i forget to turn it off almost every time since its so quiet when nothing is playing. its then running for days until i notice it
you could put it on a master-slave outlet where as your preamp is your master and switches the amp when you turn it on.
I can add myself to the list of folks. Mine, purchased Sept 2022, started popping on Jan 1, 2024.
@gamerpaddy, what's the replacement module fix?
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- Apr 24, 2022
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Topping PA5 fix - D01 Module Replacement for everyone
Ive been working on the PA5 for a while now after mine died suddently, like many others https://www.audiosciencereview.com/forum/index.php?threads/poll-for-topping-pa5-owners-only-please.33293/ Most of the PA5 units develop a crackling, hissing or just go a little silent or completely dead on...
www.audiosciencereview.com
gamerpaddy
Member
pm me if you want one.
Will do.
Earlier last year I started having the crackling sound when I power on this device, but yesterday the crackling sound stopped when I turned it on. I did change power outlet and input cables and speaker cables before yesterday, maybe that's why it helped. Not sure what I did right.
While I don't want to minimize the problems some are having with the PA5, I also had noise and crackling start in one channel but I was able to unplug the TRS connections, and clean them with alcohol which, in my case fixed the issue. It seems that, along with the input devices being upset by heat, the noise can also be caused by poor connections.
My PA5 still works fine but I lowered the voltage on it a couple of months after purchase by changing to a 32v power supply. I expect it will eventually die so I use other amps a lot of the time. I'm glad to hear yours is back working properly!
Would it be possible to lower the voltage of the PA5 II to also increase its longevity. I heard there is a 35 volt regulator on the power rails, so going under 35v may damage the amp
if the root cause is by heat, probably you can improve by lower voltage as the original 35V for opamp will reduce heat with lower supply voltage rail
Roland68
Major Contributor
No, that definitely doesn't work.
The small signal range has a regulated power supply that does not change at a lower voltage supply, but can fail or be in an undefined state. In the worst case scenario, damage to the amplifier or speakers could even occur.
Since I own the amplifier myself, I can assure you that this amplifier does not have a heat problem. Furthermore, with an amplifier, and this also applies to devices with TPA325x ICs, a certain level of uniform basic heat is desired.
If you are referring to the well-known failures of topping devices with potted modules, this is not a heat problem.
Hi from France, i just wanted to share my experience with the Topping PA 5.
I bought it around november 2022 and i have been using it since then. I bought it after reading your article. Thank you
I had big crackles in left channel in 2023, after 3 months of use. I tried to find a solution myself, filtering AC, with some Ifi products and with many other, and it worked very well until now. No more crackle. I bought a cheap android tv for streaming with UAPP on Qobuz cutting off the wifi, and trying to have the little possible bluetooth devices around. I also find that putting up the volume on the amp diminish crackles. I think it come from the ultra sensitive Topping PA5 catching all electromagnetic waves of my populated neighborhood and my own house.
It works very well and i can enjoy again my Hifi setup without crackles in left channel right now. Thank you for reading my english.
I bought it around november 2022 and i have been using it since then. I bought it after reading your article. Thank you
I had big crackles in left channel in 2023, after 3 months of use. I tried to find a solution myself, filtering AC, with some Ifi products and with many other, and it worked very well until now. No more crackle. I bought a cheap android tv for streaming with UAPP on Qobuz cutting off the wifi, and trying to have the little possible bluetooth devices around. I also find that putting up the volume on the amp diminish crackles. I think it come from the ultra sensitive Topping PA5 catching all electromagnetic waves of my populated neighborhood and my own house.
It works very well and i can enjoy again my Hifi setup without crackles in left channel right now. Thank you for reading my english.
Maybe post a video of the crackle and your setup. This way people can narrow down the cause of the crackle. Normally there shouldn't be any noise at all.
gamerpaddy
Member
the powersupply filters out quite good, and the amp is shielded. even when i have my phone sitting on top i cant hear any interference.
what dac are you using?
do you go from unbalanced rca to balanced? a fully symmetric chain from dac to amp usually cancels out any noise from outside.
what dac are you using?
do you go from unbalanced rca to balanced? a fully symmetric chain from dac to amp usually cancels out any noise from outside.
gamerpaddy
Member
looks good. what did you do to fix the crackle?
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