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12b4 bass rolloff problem
12b4 bass rolloff problem
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Old 21st August 2012, 04:38 PM   #41
zigzagflux is offline zigzagflux  United States
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Location: Charlotte, NC
Just your standard depletion mode cascode - same as what many others use on this forum.
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Old 21st August 2012, 05:24 PM   #42
artosalo is offline artosalo  Finland
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Correction to my earlier post.
Zeners will work as a stabilzer with lower current than LEDs do.
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Old 13th December 2012, 06:50 AM   #43
blaaberg is offline blaaberg  Denmark
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Hey :-)
I too have problems with sub bass roll of. Changing the parrallel resistor at output from 47K to 1M fix the problem.
I use chokes from "Old stock audio" Portland, and 5MB OIP to output.
My amplifier load is about 10Kohm....

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Old 13th December 2012, 01:58 PM   #44
DF96 is offline DF96  England
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10k||47k is 8.2456k. 10k||1M is 9.9010k. You are very unlikely to notice the difference.
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