stevem Messages: 4738 Registered: June 2004 Location: NY
Senior Member
Welcome !
The amp was born in early 1974.
If the speaker cabinet is from the K250 series then it should have silver threads in the grill cloth and the front of the cabinet should be the same depth on the top as is the bottom, in other words no taper from top to bottom,
The best way to date the cabinet is to check the date code on the magnets of each speaker.