What is the final solution for anti-pop during power-on AND power-off on these boards?
I've read more than a few threads searched on google and using DIYaudio search engine. Nothing seems like the final solution during power-on AND power-off. The cap/resistor/schottky diode solution seems to work during power-on only.
Don't mean to beat a dead horse here, but hopefully future google searches will illuminate this thread as the final solution after we get some good responses in here from current owners/DIYrs. Thanks!
I've read more than a few threads searched on google and using DIYaudio search engine. Nothing seems like the final solution during power-on AND power-off. The cap/resistor/schottky diode solution seems to work during power-on only.
Don't mean to beat a dead horse here, but hopefully future google searches will illuminate this thread as the final solution after we get some good responses in here from current owners/DIYrs. Thanks!
220uF is your DEcoupling cap, i meant the DC coupling caps on the inputs. Pop-noise and RC-timeconstant highly depends on these values. With just 470nF there's almost no pop-sound. With like 10uF (thos paper-oil stuff or similar) things getting tricky.
For the schottky diode, just can take what you've around, doesnt really matter in detail.
I finally got my first set of 15pcs of these little blue TPA3118 boards, earlier this week - still kinda can't get over how small they are 
But anyway, about these anti-pop circuits... The capacitor-Schottky-resistor combo does indeed give a delay on power-on, but i still get a pop at power-off (at least when using my bench power supply - would it be more effective with a slower-discharging power supply?).
I've used a 10uF/25v 1206 cap from Mute to GVdd, and left the stock 100k from Mute to ground that was already on the board. The input coupling caps are whatever value is/was stock on these boards, and gain's set to minimum (removed the 100k to GVdd and left only the 39k to ground).
But anyway, about these anti-pop circuits... The capacitor-Schottky-resistor combo does indeed give a delay on power-on, but i still get a pop at power-off (at least when using my bench power supply - would it be more effective with a slower-discharging power supply?).
I've used a 10uF/25v 1206 cap from Mute to GVdd, and left the stock 100k from Mute to ground that was already on the board. The input coupling caps are whatever value is/was stock on these boards, and gain's set to minimum (removed the 100k to GVdd and left only the 39k to ground).
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Dear DUG, I have purchased a 2 chips amp M190 module like the one in the attached image. I can hear a subtle pop at turn off. I am afraid it might hurt my Denon bookshelf speakers. May I kindly ask you to direct me to which chip I should apply your mod. Thank you so much in advance.
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