Casio CTK-691

From Wikipedia, the free encyclopedia

CTK-691 is a 61-key portable Casio keyboard which has a ZPI sound source, DSP effects and a drawbar organ function. Its Internet Data Expansion system allows users to download resources from the internet, such as waveform data. The model has 566 preset tones (300 Advanced tones, 50 drawbar organ tones, 128 GM tones, 72 various tones, 16 drum sets), 156 rhythms, 232 digital effects (16 reverbs, 16 choruses, 100 Preset DSP, 100 User DSP), 32-note polyphony, a layer/split function, 3 levels of touch-sensitivity (can be switched off), a 16 channel mixer function and a digital equalizer.

The keyboard weighs 5.9kg and is 960 x 375 x 146mm. The sockets on the rear of the keyboard consist of a DC 9V adapter socket, a phones/output jack, sustain/assignable jack, and MIDI IN/OUT terminals. 6 D-size batteries can also be used to power the keyboard.