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-   -   How much difference 0.22 vs 0.33 cap? (http://www.diyaudio.com/forums/tubes-valves/104476-how-much-difference-0-22-vs-0-33-cap.html)

pengboon 1st July 2007 09:29 AM

How much difference 0.22 vs 0.33 cap?
 
I am currently using a 0.22uf output cap for my preamp. But I have to output to a sub which is 30k input compared to my power amp which is 100k. for 0.22u and 30k, 3db frequency is now 24Hz, so it looks like I have to change to a 0.33uf cap to get better response. However, I can also boost the bass with my sub's high-pass filter some.

My question is then, what will I lose with the 0.33 over the 0.22? And is it necessary?

cheers!

richie00boy 1st July 2007 10:07 AM

If it were me I would be looking at least 1uF. 24Hz is far too high. Even your original values give 7Hz cutoff which again is not really that great.


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