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The MT-18 is a larger version of the PT-80, with bigger buttons and
keys and a black casing, but both models operate and sound exactly the
same. The PT-80 was also available in black and red, but these colour
variations seem to be very
The monophonic voices sound similar to the PT-82/PT-87
however, sound quite different, with more
complex rhythm patterns, deeper bass blips, clicks and longer noise
pulses, which do not suffer from the "metallic" timbre often heard on
Instead of using the left-hand part of the main keyboard to select
chords, the PT-80 and MT-18 use an array of small buttons (as does the PT-50
). To obtain minor or seventh chords,
the chord button must be pressed simultaneously with one of three even
smaller grey buttons placed beneath. I personally find this very fiddly
when attempting to play live, and often hit the wrong chord. But with
practice I expect it would become easier.
ROM Pack music is rendered nicely, but I personally prefer the sound of
the smaller PT-82/PT-87
The built-in speaker in both models is nothing to write home about, but
an output jack
is provided for using an external amplifier. My MT-18 even came with
the original Casio-branded AA batteries, still sealed in cellophane.
Whether they are any good after all these years is uncertain, but I am
not going to open them to find out.
My MT-18 still has its original £77.50 price sticker attached,
from John Lewis
, and it looks
like this has been stuck over a previous price of £89.00.