© 1995-2007 CORNELL Musical Equipment Design & Development
3
Introduction
Thank you for choosing a Cornell
Plexi 18/20
amplifier.
Your amplifier employs valve technology, and is hand built to the highest standards.
Only top quality components are used in our amplifiers, so that you can enjoy years
of trouble-free use.
Please take time to read this manual, to ensure that you get the best from your
Plexi 18/20
amplifier.
Most guitarists of today will know some amplifier history, and the name ‘Plexi’ must
be one of the best known. Plexi is a nickname for an amplifier produced between
1963 and 1969, and consisted of a range of three amplifiers of 20, 50 and 100
Watts. These amplifiers remain a legend, which is reflected in their second-hand
value.
The Cornell
Plexi
amplifiers are not one-hundred-percent copies of the old 1960s
models - they are more like one-hundred-and-ten-percent copies !
Research has shown us that not all amplifiers made at this time were the same.
Minor changes - not just in a visual sense, but also in the basic circuit design -
appear between batches made at the factory. We have taken the basic design to
its finest point, tailoring the components and adjusting the circuit to produce the
ultimate
Plexi
sound.
The Cornell
Plexi
amplifier is not just a good-looking reproduction antique to be
admired; it reproduces that classic sound and can be gigged and gigged, and
gigged.
Cornell
Plexi
Sound
The Cornell
Plexi
amplifier has a great tone that is instantly recognised, and often
emulated. Some boffins will tell you that its tone is due to its simplicity of design,
and this is the result of having a minimum number of components in the signal path.
Amplifiers of today offer a wide range of tones and sounds, resulting in a mass of
controls that can confuse even the most enthusiastic fiddler. The result of this
complexity is that most modern amplifiers sound the same, with a noticeable loss of
natural tone - tone that can only be reproduced by simple design and point-to-point
wiring.
Cornell ‘Cream Box’
Part of the Cornell
Plexi
sound is due to our little ‘cream box’. We can’t tell you
what’s inside - it’s our little secret. We think it makes our
Plexi 18/20
sound rather
special. But take a listen and judge for yourself.