Uploaded February 2021 | Updated September 2026, 2 hours ago
Written and recorded in one day, but it's not really my best composition. 9 tracks total. Recorded in Reaper with some mild EQ but no other processing.
The CT-6000 isn't analog or phase distortion as is sometimes reported; it's an enhanced version of the "consonant-vowel" synthesis from earlier Casio models, adding pitch bend, velocity and aftertouch, plus 3 oscillators per voice (up to 6 or 12 with the unison modes) and a stereo 3 BBD string ensemble chorus (similar to the one later used in the CZ-3000, CZ-5000 and CZ-1). The tone generator IC is the µPD932, which was apparently used only in the CT-6000, CPS-201 and CPS-2000. The drums are also digital, based around the the HD61701 IC (also unique to the CT-6000 and CPS-201). I plan to modify mine to unleash the digital filth lurking inside and make high quality samples of the drum sounds.
For reference, the CT-7000 and CT-8000 are similar to the Casio MT-65/MT-68/CT-405, based around the µPD930 and µPD931 ICs (consonant-vowel, 1 oscillator per voice). The CT-5500 and CT-6500 are phase distortion, basically preset versions of a CZ-3000 (µPD933 or µPD933AC) with auto-accompaniment and drums.
Written and recorded in one day, but it's not really my best composition. 9 tracks total. Recorded in Reaper with some mild EQ but no other processing.
The CT-6000 isn't analog or phase distortion as is sometimes reported; it's an enhanced version of the "consonant-vowel" synthesis from earlier Casio models, adding pitch bend, velocity and aftertouch, plus 3 oscillators per voice (up to 6 or 12 with the unison modes) and a stereo 3 BBD string ensemble chorus (similar to the one later used in the CZ-3000, CZ-5000 and CZ-1). The tone generator IC is the µPD932, which was apparently used only in the CT-6000, CPS-201 and CPS-2000. The drums are also digital, based around the the HD61701 IC (also unique to the CT-6000 and CPS-201). I plan to modify mine to unleash the digital filth lurking inside and make high quality samples of the drum sounds.
For reference, the CT-7000 and CT-8000 are similar to the Casio MT-65/MT-68/CT-405, based around the µPD930 and µPD931 ICs (consonant-vowel, 1 oscillator per voice). The CT-5500 and CT-6500 are phase distortion, basically preset versions of a CZ-3000 (µPD933 or µPD933AC) with auto-accompaniment and drums.
![Keytek CTS-2000 (Jeremy Soule - Menu [Secret of Evermore])](https://i.ytimg.com/vi/BK-_4tA72aM/mqdefault.jpg "Keytek CTS-2000 (Jeremy Soule - Menu [Secret of Evermore])
Multitracked and heavily processed Keytek CTS-2000 arrangement of the menu screen music from Secret of Evermore. The idea was to do an elaborate dub mix on each track individually. Recorded 2009?
All synths: Keytek CTS-2000
Drums: Yamaha RX5, Yamaha RY30
Processing: Tapco 4400, Digitech RDS 3.6, Ibanez SDR-1000, Roland VP-70, Alesis Quadraverb, Boss PH-1, Peavey T-Max, Dave Smith Instruments Evolver, Alesis 1622
https://www.dropbox.com/s/f8fmyerfqmwu8wk/Keytek%20CTS-2000%20Menu.mp3
The CTS-2000 has a very steep lowpass filter (about 7.3 kHz) on both output channels. This is located on the front panel PCB, near where the pitch and mod wheels connect. Removing 5 capacitors per channel (5.6 nF, 10 nF, 820 pF, 15 nF, 330 pF) and retuning the VCF trimpots for a higher cutoff frequency improves the sound considerably.")
