The Phoenix Convention Center intends to replace nine Strand CD80 (SV) dimmer processing modules which currently allow for control of dimmable lighting to the stage, auditorium, lobby, and exterior lighting located at the Orpheum Theatre. Existing dimmer processors are distributed in two separate dimmer rack groups; the first group consists of five stage theatrical dimmer racks plus a sixth rack for control over auditorium lights. The second group consists of two dimmer racks, located in a separate room, which control the lobby and exterior lights. Contractor shall also provide one spare processor, which shall be interchangeable in any one of the eight permanently installed Strand Supervisor (SV) CD80 dimmer racks from either group.Contractor shall, as a requirement for qualification to bid, visit the project site at a specified future date and time, to receive detailed site and installation information, become familiar with all existing conditions which may affect the delivery of materials and service, review plans and specifications, and ask questions, if necessary, which will be answered and shared between all bidders.All other existing dimmer rack parts will not be modified or replaced at this time.