I was reading a couple of service logs for the Hafler DH-110, and both people swapped the polarized electrolytic capacitors for non-polar versions. It seemed like they were doing it just so they didn't accidentally install them backwards? Is there any reason for or against this practice?
Really? I had no idea np caps had lower distortion than polarized. Why ever used polarized electrolytic in audio circuits then?
They are very good for coupling capacitors, and there's nothing against them other than slight cost
or size differences. They have limits in voltage rating and uF compared to polar, but not important for
most typical audio use. They are not needed for decoupling, though.
or size differences. They have limits in voltage rating and uF compared to polar, but not important for
most typical audio use. They are not needed for decoupling, though.
Its not a big difference - for a DC blocker there's usually so little signal voltage across the capacitor that the difference is completely immaterial even at 20Hz,
Cyril Bateman's measurements of polar/bipolars: https://linearaudio.nl/sites/linear...0 to 100uF caps and 100 Hz measurements_0.pdf