Capacitor-less amps

I've read some amps have no capacitors. Is this a good design?

samuellaudio10-11-2004 7:11pm

aball Details Discussions Posts This discussion Message User 2,018 posts 10-14-2004 at 02:44am Copy Comment URL Report Comment Edit Delete Actually, if the power supply caps were in the signal path (in series), you would have a highpass filter so it would be an LF rolloff. There would be no bass. There is some confusion: "in the signal path" means in series. Decoupling capacitors are in the signal path. Parallel caps are fine and necessary - cleans up the signal which everyone likes.
aball Details Discussions Posts This discussion Message User 2,018 posts 10-14-2004 at 01:21pm Copy Comment URL Report Comment Edit Delete Yes, you are correct - I meant coupling caps and not decoupling. The input coupling cap is generally the one in the signal path. Decoupling caps are from power to ground (parallel to the power supply reservoir caps) to remove radio frequency components - hence cleaning up the sound. the power supply caps, being much larger in size, remove the ripple to clean the sound of those frequencies.