Top resistors
Look here Caddock Depending on where in the crossover the resistor is inserted changing value is not recommended as the components values before the resistor are chosen seeing a certain load. Changing the resistor values will therefore change the filters transfer function i.e the crossover point of the tweeter. However if the resistor is meant to be changed by the end user then on your question about power handling of the resistor in a tweeter crossover anything above 15-20W should work just fine, if you want to spend the $ go for the Caddock MP9100 they are available at Mouser MP9100 8 Ohm |
Thanks a lot! Actually the resistors are outside the crossover system, so it shouldn't change the crossover point. But they do act as a kind of fuse, whereby upon certain critical power load they will open saving the tweeter from injury. Thats why I was asking about its power handling capacity. I understand that if the power rating is too high, they won't do their job as fuses, right? |
I do not see a Caddock MDN series of resistors listed anywhere so it would be hard to identify its wattage. As far as using a resistor as a fuse, I've never heard of such thing and would consider it sub par engineering at best, probably not what one should expect form the folks at Wilson. I would not worry too much about the fusing issue and just use the best resistor I could find, the Caddock MP9100 certainly being one of them. Good Listening Peter |
Yes it is strange that there is no reference to the MDN 0178 series on Caddock's website whatsoever, but it is clearly printed on the resistor itself. As far as replacement is concerned, I saw a new model on Caddock's website - the MPM 20 (with gold-plated leads). It looks like the best they have, but unfortunately it is not featured in any of the internet shops or Caddock dealers websites. Can you recommend where to buy them? |
