I have some air cored chokes that could be used in a pi filter. Could they be used with perhaps a couple of high quality 1,000u F capacitors to any benefit?
Use of chokes here is not recommended. Due to Lenz’s law, any change in current through an inductor is resisted by back EMF, which then detracts from the supply voltage. While an inductor works fine on a Class A tube or transistor amp, it is not at all satisfactory on a Class AB amp because of the widely varying current draw. In operation, the amp cuts out on heavy passages, the music dies, then a second later, it comes back when the amp again recovers. It sounds quite spooky, and just plain doesn’t work.
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