Hey guys,
Just finished my halfinator and the tpa3116 amp inside is making a loud pop when I turn it on and off.
Other than that it a great amp
But it's driving me crazy, plus it can't be good for the speakers
Here is the amp
TPA3116D2 50Wx2 Official version Finished Class T Digital Power Amplifier Board | eBay
Hope someone knows what I can do!
Just finished my halfinator and the tpa3116 amp inside is making a loud pop when I turn it on and off.
Other than that it a great amp
But it's driving me crazy, plus it can't be good for the speakers
Here is the amp
TPA3116D2 50Wx2 Official version Finished Class T Digital Power Amplifier Board | eBay
Hope someone knows what I can do!
I thought it just cuts power to speaker right before the amplifier turns off and powers up speakers 3secs after amplifier turns on. What do you mean irribeo?
I mean what I wrote, it connects the negative outputs of the bridged amp (tpa3116) to ground. Use diyaudio search function for tpa3116/3118 anti pop and you find solutions, speaker protect boards is one option, but two of those linked or one for BTL (bridged) amplifiers.
Right gotcha,
Found this one
Looks like a similar board but suits btl
1PC UPC1237 Speaker Protection Circuit Board ( Can control BTL Circuit ) | eBay
Seems like speaker protection boards are the easiest fix (for me anyway) thanks for clearing that up, appreciate it.
Found this one
Looks like a similar board but suits btl
1PC UPC1237 Speaker Protection Circuit Board ( Can control BTL Circuit ) | eBay
Seems like speaker protection boards are the easiest fix (for me anyway) thanks for clearing that up, appreciate it.
Technically, that board does that. But it's enough to disconnect the (+) because that's in series. So you can avoid that by simply not connecting the speaker GND to that board at all. Problem solved.
Found one finally.
They all seem to be AC only,
This one is both.
But it has three speaker outputs, it'll be alright to just use two outputs right?
Maybe be a stupid question but I'm constantly learning
http://m.ebay.com/itm/12V-35V-2-1CH...3A77baf99a15c0a9cc13b7277afffd6439%7Ciid%3A12
@ICG Ahh I see so just have the speakers + to the speaker protection board, and the speakers grounds straight to the amplifier?
They all seem to be AC only,
This one is both.
But it has three speaker outputs, it'll be alright to just use two outputs right?
Maybe be a stupid question but I'm constantly learning
http://m.ebay.com/itm/12V-35V-2-1CH...3A77baf99a15c0a9cc13b7277afffd6439%7Ciid%3A12
@ICG Ahh I see so just have the speakers + to the speaker protection board, and the speakers grounds straight to the amplifier?
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Yes, ofcourse it's enough to just use 2 connectors. It's disconnecting something in series, that's why also the first one works. Just don't connect the speaker GND to the board.
Yes and that also is the problem with these speakerswitches, with no load the outputfilter oscillates and that is what is in first post of tpa3116 thread.
You will have that problem with any speaker protection at this amp. If your board does not last for 3-4s then it's a pretty bad design or bad dimensioned parts. But even for that there's a very, very simple solution: Just let the relais switch between a resistor and the speaker. Problem solved. It's really not that hard.
I just wanted to correct that these protection boards won't work. There are probably other solutions but it's clear now these will do.
You could even say the protectionboard will work as intended when connected as intended, and just say the ampboard won't work as intended then, when you raise the volume a little.
You can't use the speakerprotectboard for switching between resistor and speaker.
A very good solution could be a load(zobel) over ampboardoutputs, but answer to original post remains no.
You can't use the speakerprotectboard for switching between resistor and speaker.
A very good solution could be a load(zobel) over ampboardoutputs, but answer to original post remains no.
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