Not even close imho. The TTS-1 is slightly better than the VSC and sounds like it came from the same soundset to me. It has that's 80's Roland sound but compressed. It does give you a lot of control over individual patch parameters.
This is completely subjective though, some have posted they like it a lot, depends on the style of music. I like jazz and good acoustic sounds so I favor realistic sounding synths as opposed to electronic sounding ones so actual instruments like pianos, basses, horns, guitars etc are way better on the Ketron or my Sonic Cell. A lot of it has to do with sampling technology, the VSC and TTS-1 have got to be 10-12 years old now, maybe older and highly compressed for use on computers that had 128mb of ram at the time.

Bob

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