Hiwatt DR 504 Vintage Gitarrenverstärker, Röhren, Tubes, 50 Watts, 1974
Hiwatt DR 504. I recently sold a Sound City MK1 to them. Since they are Hiwatt specialists, I took the opportunity to ask how old mine is. Based on a picture of the electronics, I was told mine is a “late 74 or early 75 model.”.