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Old 9th December 2015, 06:47 PM   #31
cabirio is offline cabirio  Spain
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I'm having a blast with this one:

Improve a Rotel amp THD by 20dB!

And not just because I happen to have a Rotel RA-820AX gathering dust that won't know what hit it right after I finish other projects: it's a masterclass in modding and a wonderful learning tool, the perfect "now let's get our hands dirty" companion to Self's amp book. Miss it at your peril.


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Old 24th January 2016, 07:07 PM   #32
prasi is offline prasi  India
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How about http://www.diyaudio.com/forums/solid...ned-music.html
very old thread but lot of informative discussions on amplifier design.
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Old 17th February 2016, 09:53 AM   #33
astx is offline astx  Austria
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Default Learning and using LTSpice to develop your amplifier.

This thread contains 3 different projects:
  • A high performance 200W/8R / 400W4R amplifier
  • A high performance 70W/8R / 140W4R MOSFET amplifier
  • A high performance discrete opamp "MyDOA" in 2520 layout.

The index in the first post will be updated from time to time for a quick access to milestones.

Have fun, Toni
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Old 13th May 2020, 06:14 PM   #34
MITsound is offline MITsound  Canada
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Default Multiple personalities

I had the chance to play a friend's solid state guitar multi amp a while back, and was fairly impressed at its ability to mimic various tube amps and configurations.
Has anyone seen an implementation for this in playback stereo amps? And no, I don't mean a tube buffer, which I've tried without them turning solid state amps' sound into tube sound.
My thinking is, with modern DSP, it may not be that difficult to profile a given tube's distortion profile, and impose it on a solid state amp's output.
Links or thoughts on implementing this?
"Aim above morality. Be not simply good; be good for something." HD Thoreau

Last edited by MITsound; 13th May 2020 at 06:16 PM.
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Old 14th May 2020, 03:44 AM   #35
anatech is offline anatech  Canada
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Sure, if the solid state amp is good enough, DSP will make it sound a lot like a tube amplifier.

"Just because you can, doesn't mean you should" my Wife
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Old 29th May 2020, 10:25 PM   #36
stuartmp is offline stuartmp  Australia
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Hi guys, if you have ever wondered how these amplifiers actually work and would like to watch a few educational videos which may hep you design your own one day. Check out this channel on YouTube SW Audio YouTube Channel

Don't forget to like and subscribe.

And this DIY Audio thread.SW-VFA-01: Audio power amplifier video series
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