I got the thieaudio phatoms which i read was kind of similar to the sendy’s but i have’nt tried them myself. the elex are a nice considiration.
about the 58x, the comfort just amazing and if they were detailed like the phantoms ( idk abut the 660s) could be one of the best for me. i hope to try the 660s sometime soon and maybe buy a used pair just because of how good my first experience with the 58x was.
Well the 660 is more detailed then the 58x, so it might be something to try for sure