The 1484 was a twin-twelve 60-watt amp boasting "clear, mighty sound!"  The catalog listing advertised this amp for guitar or bass usage, and had all the amenities you could want in a medium sized (and priced) package: reverb, tremolo, two channels, two matched 12-inch Jensens, and 25 feet of cable to separate amp from speaker to "end feedback." Unless feedback's what you wanted.

Introduced:
Spring/Summer 1963 at $149.95
as the 57K1484N

Retired:
1966 at $179.95
as the 57B1484N