Hello, could someone help to explain, why capacitors which are after output filter indoctur blows up?
First this amplifier came with output noise - was bad non-polar electrolytic capacitor after output inductor. Replaced with polarized with voltage x2 against rail voltage. After one month it came back with same blown capacitor but polyester cap was blown as well.
C21 and C23 as reference.

First this amplifier came with output noise - was bad non-polar electrolytic capacitor after output inductor. Replaced with polarized with voltage x2 against rail voltage. After one month it came back with same blown capacitor but polyester cap was blown as well.
C21 and C23 as reference.
