In Reply to: RE: Can I wind an optimized x-former for my needs? posted by Synthsayer on February 10, 2016 at 12:37:44:
This is a perfect example of what I was saying. Here is the simulation of your crossover by simply replacing a 4dB pad with a 4dB autoformer.
The underdamped LC resonance gives a 4 dB bump at the crossover frequency which will definitely change the sound. Simply changing the value of the shunt resistor from 1E99 to 13 brings the response back to match the L-pad situation. (1E99 is a simple way to take the shunt resistor out of circuit) In the sim below you can see the autoformer response wiht and wihtout the shunt resistor compared to the L-pad.
The LT spice file is at the link below. Simply download LTspice and run it to get playing.
dave
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Follow Ups
- RE: Can I wind an optimized x-former for my needs? - dave slagle 13:31:20 02/10/16 (7)
- RE: Can I wind an optimized x-former for my needs? - Synthsayer 12:30:59 02/13/16 (0)
- RE: Can I wind an optimized x-former for my needs? - Synthsayer 12:22:06 02/13/16 (0)
- RE: Can I wind an optimized x-former for my needs? - Synthsayer 15:09:22 02/10/16 (2)
- RE: Can I wind an optimized x-former for my needs? - dave slagle 19:46:11 02/10/16 (1)
- RE: Can I wind an optimized x-former for my needs? - Synthsayer 05:26:13 02/11/16 (0)
- RE: Can I wind an optimized x-former for my needs? - Synthsayer 13:57:25 02/10/16 (1)
- RE: Can I wind an optimized x-former for my needs? - thermionic addictions 16:35:24 02/10/16 (0)