Help deciphering a crossover circuit.

**cradeldorf** · September 2nd, 2012, 06:20 PM

Hi guys, I'm having

**Panomaniac** · September 3rd, 2012, 11:55 AM

Just FWIW, in your schema the low pass is 2nd order with Zobel. HP is second order with shaping/shelving network (15R, 3.3uF ?mH)

Unique inductor symbols, I must say!

**hemicuda** · September 3rd, 2012, 05:21 PM

It's a pot (potentiometer) / variable resistor symbol but more than likely a L-pad that attenuates the signal when turned down but keeps the amplifier "seeing" the same impedance...

**Panomaniac** · September 4th, 2012, 11:21 PM

Originally Posted by cradeldorf

... the resistor is only attenuating the notch not the entire HF range.

Well not exactly. The resistor bypasses the notch/shelf to make it more shallow. More or less.

**hemicuda** · September 5th, 2012, 01:28 PM

Originally Posted by cradeldorf

Thanks Hemi Cuda, BTW you should see the awesome purple 65 Cuda with the six pack hood scoop and the massive meats on the back here in my neighborhood. I'm predicting it's powered by a 440.

Awesome. I'm partial to old cuda's and challengers. I have a 1970 cuda and love it!