Threshold S300 speaker output voltage 61 Vdc after fuse blow

My Threshold S300 finally SOUND again! It sounds great again.
Thank you everyone for your supports with information.
However, the technician has not changed the tantalum cap yet.
Can anyone suggest what could have been better had the tantalum cap been replaced with block cap?

If replacing the tantalum cap will significantly improve its sound, I will ask my technician to do so.

Thank you for your suggestion again.