This is for a high frequency fliter knob on a Denon Prime Go unit.
Hi @alex.springer, welcome to the forum! Based on the description it may be one of these two part numbers:
P3X2103-ND
However, I did not see any information showing what that part number actually looks like or a list of concrete specifications, so I couldn’t verify how well these match the original part number. If you have more information on it, or photos, that might help to verify what we can offer.