I am looking for a headphone under $600 for my boyfriend that records music (guitar, drums) and vocals. I was originally looking at the beyer DT 1990 but read later that open end headphones are great for recording since it leaks. I do not have a lot of knowledgeable headphones and I stumbled upon this forum while trying to gain some information. Can you please help direct me on which closed end headphone would be the best choice for recording? I am currently considering the beyer DT 1770 Pro, but have been reading some negative reviews and I am stumped. Please help.