[bladesmith]

I am doing some experimenting on OB speakers, etc..

And I see some speakers have pads/atenuators built into them, also on some box/sealed speaker set ups.

Does anyone know how to pad a tweeter properly, maybe with a variable pot built in ?

Schematic drawing maybe ?

Thanks,
Smith

[G Georgopoulos]

I am doing some experimenting on OB speakers, etc..

And I see some speakers have pads/atenuators built into them, also on some box/sealed speaker set ups.

Does anyone know how to pad a tweeter properly, maybe with a variable pot built in ?

Schematic drawing maybe ?

Thanks,
Smith

you can use a power resistor(wirewound)to attenuate the tweeter,this can be built into crossover
i have no experience with padding,as this will effect tweeter dispersion ...

[richidoo]

An L-Pad is made of a series resistor plus a shunt resistor, which together attenuate the signal while providing a desired load for the filter. Attenuating with only a series resistor would change the impedance seen by the tweeter crossover filter by too much.

When you make the series resistor variable and the shunt fixed then you can change the attenuation with only small change in load impedance, so the crossover filter's function doesn't change much.

http://www.libinst.com/junk/Lpad.pdf

http://www.diyaudioandvideo.com/Calculator/LPad/

Once you decide the setting you want, measure the resistance of the variable resistor, and replace it with a metal oxide fixed resistor for better SQ.

[bladesmith]

An L-Pad is made of a series resistor plus a shunt resistor, which together attenuate the signal while providing a desired load for the filter. Attenuating with only a series resistor would change the impedance seen by the tweeter crossover filter by too much.

When you make the series resistor variable and the shunt fixed then you can change the attenuation with only small change in load impedance, so the crossover filter's function doesn't change much.

http://www.libinst.com/junk/Lpad.pdf

http://www.diyaudioandvideo.com/Calculator/LPad/

Once you decide the setting you want, measure the resistance of the variable resistor, and replace it with a metal oxide fixed resistor for better SQ.

Okay, I got it.

Thanks.....!