The page says that for the diodes the power amplifier must have a sensitivity of 750mV for full power. I plan to run it with my 20Watt SE Class-A amp which has a sensitivity of 1.5V for full power.
Is there any way to increase the preamp's output voltage swing while keeping the soft clipping behavior intact?
Are there ways to make the preamp soft-clip by means other than using those diodes at the output?
http://sound.westhost.com/project27.htm
Thanks in advance.
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Is there any way to increase the preamp's output voltage swing while keeping the soft clipping behavior intact?
Are there ways to make the preamp soft-clip by means other than using those diodes at the output?
http://sound.westhost.com/project27.htm
Thanks in advance.
.
Yes, add another gain stage (another OpAmp, for example) with a gain of 2 (or more) on preamp's output (before the power amp).
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Or alter your amp to have twice as much gain.
Its probably one resistor change to double the gain.
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It might not work if the amp doesn't use a lot of GNFB.
BTW, what power amp are we talking about?
Ha, ha, great answer - that much I've read myself.
I suppose the original poster should answer that question...
It's a common drain MOSFET power follower driven by DoZ preamp, modified with the maximum suggested gain in the article.
http://sound.westhost.com/project83.htm
Plus, I was wondering whether any kind soul would answer my second question or not?
"Are there ways to make the preamp soft-clip by means other than using those diodes at the output?"
"Are there ways to make the preamp soft-clip by means other than using those diodes at the output?"
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