Echoed or Had echoed?


After his bad rehearsal, he claimed that he is not able to sing because his voice ................ in his ear due to an old scattered sound system.

Can I use had echoed in his ear? Or only echoed? Will both work?

I am confused with the past perfect here?
  • Loob

    Senior Member
    English UK
    I'm confused - or rather, intrigued - by the "is".

    I'd have expected "He claimed that he wasn't able to sing because..."

    Where did you find this sentence, Nasserico?