So originally (before you switched the B1K outputs in #8916) is was that:
1) when only the R output from the B1K is plugged into the R input of the amp, sound comes out of the R speaker?
2) when only the L output from the B1K is plugged into the L input of the amp, sound comes out of the L speaker?
3) when both the L&R outputs from the B1K are plugged into the amp's L&R inputs, sound only comes out of the L speaker?
If 1, 2 & 3 are correct, it kinda sounds like the R output signal from the B1K is being sent to ground (shorted) when the L output is connected to the L input to the amp?
1) when only the R output from the B1K is plugged into the R input of the amp, sound comes out of the R speaker?
2) when only the L output from the B1K is plugged into the L input of the amp, sound comes out of the L speaker?
3) when both the L&R outputs from the B1K are plugged into the amp's L&R inputs, sound only comes out of the L speaker?
If 1, 2 & 3 are correct, it kinda sounds like the R output signal from the B1K is being sent to ground (shorted) when the L output is connected to the L input to the amp?
Pictured posted in post #8,913, it is difficult to see how the ground wires from the RCA jacks are connected to the volume pot. Please unravel the wires so that the routing is clear.
You should pair the positive and negative wires from each RCA jack. Twist the left positive and negative together and connect to one side of the pot. Twist the right positive and negative together and connect to the other side of the pot.
The positive and negative from each channel from the pot to the board should also be twisted.
You should pair the positive and negative wires from each RCA jack. Twist the left positive and negative together and connect to one side of the pot. Twist the right positive and negative together and connect to the other side of the pot.
The positive and negative from each channel from the pot to the board should also be twisted.