All Tube Amp, 22 watts RMS . Two channels, one with just volume bass and treble, one with reverb and vibrato on top. No master. At the rear, outputs for ext speaker,  pedals on / off  reverb and tremolo. The spring reverb is fixed to the bottom of the amp.  Oxford speaker. Mine is a '72..

UTILIZATION

Yes, the setup is simple, even simplistic but it is the sound wanted by generations of guitar players of any musical style. This gives a sound a little less round than a Vox AC30, the tremolo gives a vintage sound (Doors, Shadows ...) and the spring reverb gives it a unique grain that digital reverbs can not give. I have the original manual that says less than these lines. I also have the Electronic Schematic.

SOUNDS

You can do everything. I have a Marshall distortion pedal. But the main purpose is to have a clear sound, ideal for country and western, rockabilly, jazz, surf, rock the Arctic Monkeys etc. ..... A precision tool and a sound we rarely hear on recent amps. Sure for  heavy metal, you need a good distortion and Marshall does it better. Distorsion comes naturally  by turning the volume beyond 7 ). If you are in a rock band,  volume  4 is sufficient to cover a battery. I  sold the Princeton, which sounded more "tinny"  10 inch speaker instead of 12), and it was not sufficient to cover the drums. I busted the speaker.
The Oxford (blue sticker ) is excellent.

OVERALL OPINION

I have the amp since 1985, bought used in London. What I like most is the sound. I did not see a default. Before that I had a Yamaha B212 100 watt silent but much too heavy (like a solid state Twin Reverb ). It is the ideal compromise, you can carry it - not too long- without breaking your back, because it has the sound of great guitarists and of legends, sufficient power and the  irreplaceable Fender reverb and vibrato. This is not a Blackface, more expensive, but this is a great tool. I play it with my Strato of 64 SERIES L, and I have this unique vintage sound,...