Was seemingly so easy, but nothing was coming up with my searching. Appreciate those tips and specifics.

I've got some DT770's that the jack broke on. Went to Musician's Friend and bought a new one and soldered it on and it lasted about a week (prob my soldering). That was the last they had in store. Is there a big difference in audio quality with 1/4 jacks? Do "no solder" jacks suck? Is there...