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-   -   TPA3116D2 Amp (https://www.diyaudio.com/forums/class-d/237086-tpa3116d2-amp.html)

Turbowatch2 11th November 2019 07:26 AM

12V Battery should not sound better, usually it is less dynamic. If it does, there is something wrong with your other PS.
The higher the voltage, the better the sound, 24V are considered best.
What source do you use? To what amp do you compare "sound"?
Are two of the 4 input caps grounded? (Manual)

Michelag 2nd December 2019 04:58 PM

hello folks....
was looking for more power for my JBLs (4312s)...
and just discovered the world of class D...
long story short, found on ali "TPA3116 and NE5532P, the power is 100W * 2",

how would be a chain of nobsound 6J2 ----> marantz 2235b (as a pre) ----> TPA3116 ?

or better this TPA3116D2? Yes possibly I'm looking for a whole model with case.

And since i won't be able to read the 1132 discussion pages in the near future, were there some tweaks/mods/tools for this TPA ? Recapping, changing resistors, or else?
I'd really like something in the region 100wpc @8 Ohms, do you find this possible?

in your great and unmatched wisdom, could please give me your opinions?

Thank you very much

zek 2nd December 2019 06:58 PM

Quote:

Originally Posted by Michelag (https://www.diyaudio.com/forums/class-d/237086-tpa3116d2-amp-post5994817.html#post5994817)
I'd really like something in the region 100wpc @8 Ohms, do you find this possible?....

If you need pure, low distortion, real power - it is not possible with the 3116 or 3116D2. Look for TPA 3255.

Michelag 2nd December 2019 07:04 PM

Quote:

Originally Posted by zek (https://www.diyaudio.com/forums/class-d/237086-tpa3116d2-amp-post5994925.html#post5994925)
If you need pure, low distortion, real power - it is not possible with the 3116 or 3116D2. Look for TPA 3255.

By the way, is it possible to mod them and use as power amps?

zek 2nd December 2019 10:00 PM

Quote:

Originally Posted by Michelag (https://www.diyaudio.com/forums/class-d/237086-tpa3116d2-amp-post5994938.html#post5994938)
By the way, is it possible to mod them and use as power amps?

Basically these are all power amps with just an extra potentiometer.:emoticon:

Michelag 2nd December 2019 10:25 PM

Quote:

Originally Posted by zek (https://www.diyaudio.com/forums/class-d/237086-tpa3116d2-amp-post5995151.html#post5995151)
Basically these are all power amps with just an extra potentiometer.:emoticon:

So leaving it full open and using the pre to set the volume?

FauxFrench 2nd December 2019 11:59 PM

Quote:

Originally Posted by Michelag (https://www.diyaudio.com/forums/class-d/237086-tpa3116d2-amp-post5995173.html#post5995173)
So leaving it full open and using the pre to set the volume?


Yes, you use the extra potentiometer to set a suitable input sensitivity of the power amp. It may not always be fully open.

Zoran023 11th December 2019 02:27 PM

Hello guys

Can somebody help me about my TPA3116D2 amp?

YouTube

The problem is exacly like on this video. Please read description of video, there is the problem.

I use 24V 8A power supply.

FauxFrench 11th December 2019 02:52 PM

Quote:

Originally Posted by Zoran023 (https://www.diyaudio.com/forums/class-d/237086-tpa3116d2-amp-post6005128.html#post6005128)
Hello guys

Can somebody help me about my TPA3116D2 amp?

YouTube

The problem is exacly like on this video. Please read description of video, there is the problem.

I use 24V 8A power supply.


Have you got a DC power supply with a voltage in-between 5 and 9 V to test it with? The output filter chokes may be the problem.

Zoran023 11th December 2019 02:57 PM

Quote:

Originally Posted by FauxFrench (https://www.diyaudio.com/forums/class-d/237086-tpa3116d2-amp-post6005172.html#post6005172)
Have you got a DC power supply with a voltage in-between 5 and 9 V to test it with? The output filter chokes may be the problem.

I tested with 12V 1000mA DC , 16V 500mA DC, 24V 8A DC. That is all I have. I also have 32V 375mA but that is too much.

I use this power supply for 24V. https://www.electracool.com/MED200-24.pdf


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