Caddock resistor for passive crossover?Mills MRA-12 wired in parallel?

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#21
At the risk of engendering criticism from those who cannot or will not hear any difference in components, especially something as benign as a resistor, I have heard the differences between them in certain sections of certain circuits. In my chip-based power amplifier, there is a 0.47 ohm resistor at the output of the LM3886. A Caddock MP930 was an improvement over the original sand cast resistor (which probably consisted of Constantan wire), but the Mundorf Ultra provides a smoother, more open sound with less metallic edge and harshness. The same thing happened to my speakers when I replaced 6 ohm Caddock MP930, in series with the tweeter, with a 6 inch piece of Manganin wire: clearer high frequencies with no metallic edge or harshness. I suspect a Mundorf Ultra would have provided the same type of improvement there, but at 30 times the cost. I also experimented with using longer and shorter pieces of wire until I achieved proper tweeter level. One could install a switch between different lengths of wire rather than opening and modifying the outboard crossover as I did a few times.
 
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#24
Hello not to complain with anyone but tweeter shunt inductor does dissipate very little power and even "20AWG" inductors are more than enough and the extra resistance may even help the "Q/Phase" adjustment as well some times.

Here is my latest XO build

Between Ohmite WH/WN (Aryton Perry winding Non-Inductive) Series are more than enough and you don't need to spent a fortune in "Mills" unless you can hear a difference between "CCA" and "99% Oxigen Free Copper" conductors, then I will stop my humble recommends and go to sleep again. 😉

Best regards!
 
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