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Old 9th April 2014, 02:53 PM   #1
Agustr is offline Agustr  Sweden
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Default TP2050 Class-D Power Amplifier Board [50W + 50W]

I was wondering if anybody had anything to say about this device. I am unable to find much info on the thing online.

I was also wondering if I understand this right. When wiring up the line in for the amp that then goes through a potentiometer (should I get 50kohm or 100kohm potentiometer?) that just attenuates the signal.

My concern is that if the amplifier is always at "full volume" any interference would then always be really amplified.

I may be forming my questions weirdly or even wrong and hoping you can help me.

oh and here is a link to the amplifier in question:
Yuan Jing Audio - TP2050 Class-D Power Amplifier Board [50W + 50W] - $24.50 - Class-D & T

Also if anybody can point out an off the shelf ac/dc converter to use with the project I have in mind. Preferably one that should be mounted inside the amplifier box.

Best regards,
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Old 9th April 2014, 05:03 PM   #2
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10k logA is just perfect. Any higher value will increase noise (whiper noise).
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Old 9th April 2014, 05:23 PM   #3
Agustr is offline Agustr  Sweden
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Okay cool! And just plug it in between my amplifier and the audio source (phone)?
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Old 9th April 2014, 06:51 PM   #4
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Well, just like a pot is normally connected, yes.

Hot -> Input
Cold -> GND
Tip -> Output
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Old 14th May 2016, 10:28 PM   #5
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I figured it's better to resurrect this thread than start a new one about the same amp.

What type of connector is used for the input on that board? I have the board, but I didn't notice when I ordered it that it didn't include one. Having the right one would simplify the box I'm making to hold it, but I don't know what to look for, having never purchased one of those separately (and I can't find ANY documentation on this board).

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Old 15th May 2016, 03:25 PM   #6
Jerms is offline Jerms  United Kingdom
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Location: High Wycombe, Bucks, UK.
They are usually "JST XH 3 pin" (Japan Solderless Technology, XH = 2.5mm pin pitch). You can get connector sets or tailed connectors on eBay etc.

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