Duelund resistors are "weird." They claim to have a high thermal coefficient (resistor value change rapidly with heat) that somehow magically makes them change value correctly to compensate for drivers warming up. Problem is there are lots of places to use resistors in a circuit, and the importance of any given resistor to the overal filter impedance varies tremendously, so who knows which way this will affect the speaker sound as it warms up.
Having resistors change value with heat is the LAST thing on earth I want, unless I have exactly matched the crossover behavior to the drivers themselves.
Unlike Duelund, Mills 5 and 12W wire wound resistors have EXCELLENT thermal stability. Warm them up within their heat / power tolerances and they maintain their values precisely.
I think Jensen is making a line of affordable (relatively) foil in wax / paper coils.
E
Having resistors change value with heat is the LAST thing on earth I want, unless I have exactly matched the crossover behavior to the drivers themselves.
Unlike Duelund, Mills 5 and 12W wire wound resistors have EXCELLENT thermal stability. Warm them up within their heat / power tolerances and they maintain their values precisely.
I think Jensen is making a line of affordable (relatively) foil in wax / paper coils.
E

