What type of dielectric and what voltage rating? I have used 10uF 50V X7R in some low voltage circuits (less than 5V DC across them). I couldn’t find a fault with the audio. The higher the difference between rated voltage and the actual DC voltage across them, the smaller the capacitance reduction effect.
Sony uses MLCCs as coupling caps the audio path in their their latest generation of UHF beltpack transmitters (Sony UTX-B40), with no apparent loss in performance vs. previous generations using polar caps. They are microphonic though, if I mute the TX or unplug the lav mic and flick the TX with my finger, the receiver DOES pick up something…
