“Everything we hear can be measured” is an unsupported belief.
Power conditioners
Seems that engineers who work in industries that demand actual control or reduction in EMI/RFI and other things, use industrial power filters that actually do what they claim to do and they have the measurements to back it up. The Shunyatas and all the rest of the audiophile associated pieces that are basically a fancy power cable receptacle, rely on what they hear (and any objective, rational person knows that is 100% subjective and not valid). Read about it here
- ...
- 36 posts total
@kennyc + 1 |
@larsman It is true there is no one measurement that correlates to what we hear. The THD Wars back in the 1970's didn't help anything either. But the fact is, the vast majority of ugly distortion mechanisms can be measured, if the engineer is creative and has the right equipment. |
The lower frequency for the cutoff requires larger and more expensive components. This is why some companies chose a higher cutoff to have a less expensive product. In this case it's up to the PSRR rating of the downstream electronics to keep the noise out. Not the best approach, but it's less money to buy. A 3 to 6 KHz cutoff is an ideal Fc for AC Main filters, at least in my opinion anyway. |
- 36 posts total