After a new acquisition, my old hp 6720s laptop is used as electronics dummy tester. I don’t mind to put it under certain risk…
It has one internal speaker with two wires (red and black), so far I have installed another internal speaker(B) jumping the red and black wires in parallel, the two speakers works flawlessly even connected to one single channel.
I bought an internal laptop Subwoofer(S) to install inside my laptop, I guess that they are quite power demanding, so I acquired a mini 5V amplifier PAM8403 board (Stereo). I’ll power the amplifier jumping to one of the USB ports (+5v -5v).
Soundwise the input of the amplifier is 2 channel L + R + GND. So what would be the best way to connect the two laptop red and black sound wires?
Option 1:
Laptop red wire to amplifier R
Laptop black wire to amplifier GND
Option 2:
Laptop red wire to Amplifier R and L
Laptop black wire to amplifier GND
(The output of the amplifier is two speakers but I’ll connect the 2ndspeaker(B) and the Subwoofer(S) )
Thanks!
It has one internal speaker with two wires (red and black), so far I have installed another internal speaker(B) jumping the red and black wires in parallel, the two speakers works flawlessly even connected to one single channel.
I bought an internal laptop Subwoofer(S) to install inside my laptop, I guess that they are quite power demanding, so I acquired a mini 5V amplifier PAM8403 board (Stereo). I’ll power the amplifier jumping to one of the USB ports (+5v -5v).
Soundwise the input of the amplifier is 2 channel L + R + GND. So what would be the best way to connect the two laptop red and black sound wires?
Option 1:
Laptop red wire to amplifier R
Laptop black wire to amplifier GND
Option 2:
Laptop red wire to Amplifier R and L
Laptop black wire to amplifier GND
(The output of the amplifier is two speakers but I’ll connect the 2ndspeaker(B) and the Subwoofer(S) )
Thanks!