Looking for a subsonic filter.


Any suggestions.
adeep42
Harrison labs sells a 20Hz filter I used as a subsonic filter for a turntable. Price is not bad at $24.50 for each channel.

Is this for a subwoofer or turntable use?
Thank you both for the quick responses. If either of you have used them, I'm curious about their effectiveness. Both are passive, but one is 9 times the cost.

Thanks again;