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Calculate -3dB point
|Posted on July 3, 2012 at 05:48:03|
Joined: October 31, 2001
|11Hz, posted on July 3, 2012 at 07:47:47|
Location: So. Cal.
Joined: February 9, 2002
Have Fun and Enjoy the Music
"Still Working the Problem"
|RE: Calculate -3dB point, posted on July 3, 2012 at 08:01:22|
Here is an RC calculator.
This shows 11hz as the -3db point. Phase gets lagged 90 degrees in the voltage going through the cap. Phase will be disrupted 10x above the knee. So in this case, phase will be disrupted to 110 hz. You should shoot for 3hz or less to avoid phase issues. The 3hz point requires a 0.8uf cap into your 66K load.