| I have had a couple of CS-80's, I still have one, and I just repaired a CS-30 this week. The usual dead VCA problem, (which is a bit of a worry as the CS-80 has around 220 of them in it). It definitely has the same architecture as the CS-80, with a pair of IG00153 VCO's, a pair of IG00158 Wave shape controllers, a pair of IG00156 VCF's, an IG00152 filter ADSR, an IG00159 amp ADSR and 7 IG00151 VCA's, and it also used the Yamaha trick of blending a sine wave after the VCF to fatten the sound up. So effectively it is equal to, say, a single lower and upper voice of a CS-80. It definitely has the sound.
As Dave mentioned, it is by no means a CS-80, but you can make it sound pretty much exactly like a monophonic CS-80 in as much as it uses exactly the same VCO's, waveshapers, VCF's, envelope generators and VCA's as a CS-80. Somehow it manages to stay in tune a lot better though, The CS-30 doesn't get hot inside so the VCO's don't drift much. |