CTG Designing and Installing CTG Designing and Installing Comprehensive Technical Group (CTG) recently completed the design and installation of iXL's second component digital suite. The suite previously housed an analog linear edit system. CTG also completed the installation of the new AVID Symphony and Illusion at Artisan Picture Works. Additionally, CTG recently provided and installed Primal Screen's new Accom WSD/2Xtreme video disc array and Sony Digital Beta Machine.