The Crumar Spirit came up on the AH mailing list recently and non other than Gordon Reid posted a link the the SOS article on the Crumar Spirit. SOS is a great resource in that they post many of their reviews free of charge online.

"Nevertheless, Crumar singularly failed to make it into the big league, so when they announced the Spirit in 1983, nobody took any notice. The world's interest was only marginally more piqued when Crumar let it be known that Jim Scott (one of the co-designers of the Minimoog), Tom Rhea (another Moog employee best known for writing many of Moog's synthesizer manuals) and none other than Bob Moog himself had helped design it. And that's a shame, because, as you will see, the Spirit is one of the most complex, challenging, and -- above all -- powerful monosynths ever produced."