Author Topic: making a fixed bias amp sound more like a cathode biased one  (Read 642 times)

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Offline ELS122Topic starter

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i really want fixed bias because it can usually output more power and is easier to bias, but i like the more commpressed and smoother tone of a cathode biased output. can i make a fixed biased amp sound more like a cathode biased one?
 

Offline ch_scr

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Re: making a fixed bias amp sound more like a cathode biased one
« Reply #1 on: June 06, 2020, 08:57:08 pm »
Maybe have a Cathode biased preamplifier stage generate you harmonics for you so it sounds "right" and have the efficient power stage after that?
 

Offline ELS122Topic starter

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Re: making a fixed bias amp sound more like a cathode biased one
« Reply #2 on: June 06, 2020, 09:12:10 pm »
Maybe have a Cathode biased preamplifier stage generate you harmonics for you so it sounds "right" and have the efficient power stage after that?

yeah I am thinking I could just have it going into a dummy load and then into a more powerfull amp, basically amp slaving.

I was experimenting with putting a 1k resistor in series with the center tap of the OPT but that would defeat the whole purpose of fixed bias right?
 


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