Sort:  
 11 months ago  

They are extremely cheap, between 2 and 3 US dollars. I hope it can last a few years. I will be updating the performance of the board over time in the comments.

Thanks for comment

 11 months ago  

No problem, those type of items are always expensive around here

 11 months ago  

I'm sorry, I'll do my best to post an upcoming video of making a similar amplifier with recycled electronic components.
Happy day!

 11 months ago  

That's so cool to hear