Led Zeppelin II was the first LZ album I ever listened to or owned.

I was there in 1969, as a 14 year old that had never heard ANYTHING like that before!! I experienced it for the first time, and for many times after that, listening with a pair of the big over-the-ear Koss headphones, that gave me everything that Garrard turntable could squeeze out of, that Robert Ludwig mastered LP.