Dating fender super champ
Lots of different speakers were used in the blackface and silverface era Fender amps.
In a BF Vibrolux Reverbs you could have either Jensen, CTS or Oxford, the BF Super Reverbs had Jensen, CTS, Oxford or sometimes JBL, the BF Pro Reverb had Jensen, Oxford or Utah, .
Vintage 1959 Fender tweed Bassman, classic 5F6-A circuit. Mid-60s factory Top Boost AC-30, designed by Dick Denney, JMI production, grey panel, original transformers, housed in a very authentic North Coast repro cabinet riding on a beautiful repro chrome dolly, Weber Blue Dog alnico...
All-original except grounded plug (original gray cord included). Big brother of the tweed Harvard model, one of the most recorded amps in history. Here we have a vintage 1964 Ampeg M-15 "Big M" combo amp.
Serial number 3648, original Jensen P12R alnico magnet speaker, just reconed.
Amp just thoroughly serviced, grounded cord added.... A rare find as these higher watt 50's Fenders were expensive in the day.
You should be able to find a number stamped somewhere on the speaker’s frame.
With this, you can get improved tube amp tone and still meet any budget.