1969 Sunn 1200S. The 1200s is from the 1000 series of Sunn amps.
It would probably be used best for any music that requires a clean sound. It is a one channel, the clean one.
The Sunn Sorado is a simple, single channel, all-tube amp made in 1968 with 2 inputs and 5 simple controls: Volume, Bass, Treble, and "Lo" and "Hi" boost switches.
The Sunn T50C is built for power, and it's built to travel. The Sunn T50C is a 50 Watt, all tube design amplifier that features one 12" Celestion G12 T75 speaker.