Why are DC blocking capacitors so large
240KW/400KW industrial rooftop - commercial rooftop - home rooftop, solar power generation system.
And as i wrote, if the DC blocking cap is large enough (RC<1Hz) to ensure low impedance in the audio band, (very low voltage drop) the capacitor distortions should be below the audibility level. Unlike in for example in crossover filters, where the voltage drop on capacitors is signigicant and it can add some distortions.