Introduction: LM3875 56W Mono Amp Build
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About: "create until you have no more, and when you have no more, create some more"
ehm ya, i like makin just about anything...
This is a build I did of a LM3875. Really easy chip to build, only thing i don't love about this chip is that it is only really stable with an 8 ohm load, anything else and it protects itself by limiting power output.
It's a really clean and crisp sounding chip amp, I'm actually pretty impressed with the sound quality.
Next I plan to build a 4 channel amp using these chips, and build a 12V to 35V DC converter so i can use it in the car. Should be a cool project, I've just gotta wait till the funds come in.
Anyways, on the the pictures :)
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4 Comments
10 years ago on Introduction
does the lm3875 have to be powered by a dual rail supply?
Reply 10 years ago on Introduction
No, I'm powering it right now with a single rail, however when i had it on a dual rail it sounded a little crisper. Could be just my biases, but I'm pretty sure i could hear the difference.
I have yet to be able to take this amp up to full power, because i have it on a 6 ohm speaker at the moment. Waiting for speakers to come in the mail to make sure everything is functioning correctly on the single rail
10 years ago on Introduction
uploaded the schematic:)
10 years ago on Introduction
Could you include a schematic for us? :D