Series Resistor for attenuation in Passive Crossover

Hi all.

Can someone varify my maths here...(it's been a while)

I wish to provide about 7dB attenuation for a horn tweeter. (8 ohms) using a non-inductive series resistor. (not L pad)

My intention is to increase the overall impedance of the tweeter / attenuation, so as to allow me to use lower value capacitors (therefore cheaper) in the passive crossover which will be 18dB/ Octave.

My calculations are a resistor of about 10 ohms will be required..

Any comments appreciated...

Ed.:p
 
Yes, sometimes and yes. :)

A transformer could be useful too, with it's inductance forming part of the filter.
 

Attachments

  • xover.GIF
    xover.GIF
    1.3 KB · Views: 156