Resistor to tone down tweeter?

Stupid question for you electronics boffins. on a guitar if you want to roll off the highs you use your tone knob which uses a capacitor fromt he tone pot to ground (I think). Why would this not work in this case. Suspect I'm missing something but its not my field.

03-17-12: Paulsax
Stupid question for you electronics boffins. on a guitar if you want to roll off the highs you use your tone knob which uses a capacitor fromt he tone pot to ground (I think). Why would this not work in this case. Suspect I'm missing something but its not my field.
Paulsax (Threads | Answers | This Thread)

Doing what your mentioning would be at the line level. That is similar to what is done in a preamp's tone control. It may also change the midrange some.

Doing it this way is at the speaker level.

Also, the speaker builder already picked the right value capacitor for the correct crossover frequency, for the tweeter. If you used a different value capacitor, it would have a different crossover frequency. That crossover frequency is fine now.

Doing it speaker level like this will just lower the volume level of the tweeter alone. It won't change its (tweeters) crossover frequency. Plus, it won't change anything in the midrange.

A variable wirewound potentiometer could be used for this, but, they can add noise. A lot of speakers had variable line level potentiometers, and they seemed to have faded away in the majority of hi-end speakers.

A variable wirewound potentiometer could be used for this, but, they can add noise. A lot of speakers had variable line level potentiometers, and they seemed to have faded away in the majority of hi-end speakers.
Hifitime

Oops. I shouldn't have said a lot of speakers had variable line level potentiometers. I should have just said that a lot of speakers had variable level potentiometers for their tweeters, and sometimes midranges too.