Crumar DS-I & DS-II (Ad from June 1978)
This is a very big and good looking synth with a lot of knobs for instant hands-on control. And you don't need a hardcase, it's built into one.
The Crumar DS-2 is basically a monosynth with an added 44-voice polyphonic strings section. The DS-2 was one of the first synthesizers to use digitally controlled oscillators making it stable in tune but maybe not as fat as VCO synthesizers.
But it can sound fat. Especially if you use the polyphonic string section and apply some slow LFO modulation to the pitch.