I have some 5.25" speakers in the car doors, running of a small Amp.

The issue is that the speakers are outputting too much bass, causing them to distort and vibrate the doors when bass is played. (The Amp only has a LPF :o I need a HPF)

So Ive bought some 200uf 100v BiPolar Capacitors to decrease the frequencies below 200hz

I tested the capacitor inline of the (+) speaker wire, and it indeed works



Now the question is, the front Speakers are 2-way Boston S55 (non component), which already has a built-in capacitor/inductor for the tweeter.


Q. Can both the tweeter driver and midrange driver both run off the new capacitor? Can I simply place the capacitor inline from the Amp to the speaker? will that cause any problems? (ps. the tweeter still functioned ok when I tested it, so it should be fine, correct?)

Or do I need to re-wire the speaker itself and connect the 200uf capacitor from the (+) Y point to the (+) of the driver (where it splits the + to the tweeter and mid-driver), so the tweeter doesnt have anything to do with the 200uf capacitor?




Here's a diagram:

 

You would be hard pressed to hear any difference between the two configs. The large 200uf cap will have negligible affect on the small tweeter cap. I can post the formula of series capacitors if you like.

jeff

 

Ok, good to know. I just needed to make sure the caps running in series wouldn't change the ohms to the tweeter or something like that.

No need for a formula, I'm happy with the results.

Cheers.