So if you play first with carbon types, plan to measure them with an ohmmeter before inserting them, so you know for sure what you are hearing. And too, a carbon resistor will have colorations that will go away when you substitute a Vishay or a tant or a Caddock, e.g.
I would not use a wire wound unless it was a non-inductive type and you otherwise like it.
Lewm (System | Threads | Answers | This Thread)
I suggested the carbon for trial because of the cost. A typical 5% wouldn't make that big a difference in the sound when your changing the values at lot more extreme than that. Vishay resistors are to fragile to keep swapping them out, and buying a handful of different values is way to costly IMO.