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Posted By bgarcia17 [Profile] [Gallery] Category Graphs | Charts | Diagrams | Misc
Original Filesize 67.4 KB Original Dimensions 800 x 411
Date Posted 12-16-12 07:16 PM Number Of Views 78
Title Yung HPF FR
Description Here are two graphs showing the FR of a Yung 200-6 plate amp. One with and one without modification to the hpf. Looks to me like they are using a bandpass to provide additional boost. Notice there is still a boost even when the hpf is modified. The hpf was modified to have an Fc of about 13Hz, and a Q of .6. There should be NO boost at all, and FR should actually sag down low. There is some gain in the frequencies below 30Hz, but not what I'd expect.
 



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