I'm a little unsure what part of their sound is 'bad'? I quite like Sennheisers - not so much the 835 head, but 845,855 and 865 are nice - but I'd happily swap an 845 for a 58 and the 865 for a 86? It's a tweak of EQ between them. I'm happy you don't like them, but 58s sound perfectly fine. I...