"it is an hf filter at 1.6 mghz for filtering rfi and emi. imo a must in a city environment"
Bobby, I have heard differences in sound resulting from shielding low level signals like that in an MC phono stage from EMI produced by nearby amps, transformers, etc.
Can you explain why this is a relevant feature for a speaker? How intense must these fields be to have an audible effect on teh speaker circuitry?
Also, why is this filtering bundled into the same add on circuitry as the circuitry in the option for better performance with some amps? These would seem to be two different problems that might not always occur together.
Bobby, I have heard differences in sound resulting from shielding low level signals like that in an MC phono stage from EMI produced by nearby amps, transformers, etc.
Can you explain why this is a relevant feature for a speaker? How intense must these fields be to have an audible effect on teh speaker circuitry?
Also, why is this filtering bundled into the same add on circuitry as the circuitry in the option for better performance with some amps? These would seem to be two different problems that might not always occur together.