Hi All,
I have recently built me a second Lola pre, and came across an issue with the Op-Amps.
There is a background distortion at anything above the very low gain settings and maybe 12 o'clock output. As you increase the gain the distortion gets worse. The distortion is not constant like a feedback but is present in the background of every sound. (when silent its subtle but there)
I was able to swap out the op amps (same BA512) from my previous build and the distortion is gone, and sound is as it should be.
What might i have done to the Op-Amps ? and is there any value in maybe ordering transistors and the other bits, swapping them out until i rectify it? (pun not intended)
Any suggestions would be greatly appreciated.
Thanks
James
I have recently built me a second Lola pre, and came across an issue with the Op-Amps.
There is a background distortion at anything above the very low gain settings and maybe 12 o'clock output. As you increase the gain the distortion gets worse. The distortion is not constant like a feedback but is present in the background of every sound. (when silent its subtle but there)
I was able to swap out the op amps (same BA512) from my previous build and the distortion is gone, and sound is as it should be.
What might i have done to the Op-Amps ? and is there any value in maybe ordering transistors and the other bits, swapping them out until i rectify it? (pun not intended)
Any suggestions would be greatly appreciated.
Thanks
James