The Cornell Romany 12 1x12 combo amplifier is equipped with a 12" Jensen speaker and a maximum output of 10 watts, delivering a professional tone that is perfect for studio use or home practice. Players can benefit from natural warm and sweet tone, reminiscent of those classic American amps from the late 1950's. Achieving the perfect tone is easy with the choice of volume, bass, middle, treble, and a push/pull switch the on volume for EQ cut. In addition, an output valve voltage reduction control gives you the choice of 10, 1.5, 0.25 and 0.05 watts.
Iconic Classic Appearance
In addition to it's authentic tone it also has the looks to match featuring classic tweed covering, brown grille and leather handle for portable use. The control panel offers a simple design and completes that classic look with chicken-head control knobs.

Cornell Plexi 18/20 combo

Channel One: Hi & Lo inputs Volume Tone Channel Two: Hi & Lo inputs Volume Tone Switch: 18/20 (Rectifier) Mains (On/Off) Class A Push pull Cathode bias. Valve Complement: ECC83 (x2) EL84 (x2) GZ34 (x1) Output: High 20 watts Low 5 watts 8 & 4 ohms jacks. Supplied with one 12 inch, Celestion speaker. Contains Cornell 'Cream Box'

The Cornell-Plexi 18/20 Combo is made to the basic circuit of the PA20 Plexi panel which was produced in the 60s. Additional Cornell design features like the switchable valve rectification and power reducer are fitted as standard.
Complementary push-pull class "A" output has been used in many renowned amplifiers throughout the history of guitar amplification. The problem with this basic circuit, which has remained common to all manufacturers with some minor differences, was one of unequal current flow through each output valve and unacceptable crossover distortion. At high output levels the problem is accentuated and results in a fuzzy sound.
We have corrected the design and resolved the problem by balancing the output and reducing the crossover distortion. This results in a much smoother sound at high output levels. The output having very little crossover distortion. The difference can be seen and measured on an oscilloscope.
We have encapsulated the components and called it the Cornell 'Cream Box' which describes the output tone. We now use this circuit in all of our complementary Class "A" push-pull output designed amplifiers.