Here they play concerts ... I've never heard such ...

Here they play concerts ... I've never heard such bad acoustics. If you know the April of the song you are listening to you can barely understand them when the singer pronounces them, if you do not know them you will not be able to understand anything. Even if they speak without background music, it is not clear what they are saying. The worst place in the world to attend a concert. You spend a lot of money on a concert and it feels worse than a cassette dropped in a puddle ...