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Wireless headphones to amplifier

I took apart some wireless headphones because I wanted to hook up the receiver to an amplifier using a 1/4" male jack but in confusion I tore off the speaker leads and grounds I managed to find the leads (marked SP1 and SP2 I only want one side though since its a mono plug) if the Part marked SP1 is the lead how do I find the ground?

Re-design6 years ago
You should be able to find where the solder connection is torn off.

Other than that, it may be difficult to find the ground for the amp.  It may or may not be the common circuit ground.
AusencioFlores (author) 6 years ago
I did some probing around, and found it, so Thanks! Now I can play anywhere in my house