®Introduction220iDriveRack® User ManualIn addition to the amazing menu of processing available, the 220i also affords you the luxuryof utilizing dbx Zone-Controller series wall-mounted control panels that will allow you toremotely control various parameters of the 220i. The ZC-1 offers remote programmable Volumecontrol to any installation using the DriveRack 220i. The ZC-2 provides programmable Volumeand Mute control. Both the ZC-1 and ZC-2 can be programmed to outputs of the DriveRack220i. The ZC-3 allows Program Selection on the 220i. The ZC-4 also offers Program Selectionvia Contact Closure inputs for Room Combining applications. Up to six Zone Controllers canbe used with a single DriveRack 220i, and can either be wired in series or parallel. The ZC-BOB was created to accommodate “home-run” or parallel wiring to the unit. With a maximumlength of 1,000 ft., the Zone Controllers offer a simple way to create a simple yet elegant solu-tion to many installation applications.If you require technical support, contact dbx Customer Service. Be prepared to accuratelydescribe the problem. Know the serial number of your unit - this is printed on a sticker attachedto the top panel. If you have not already taken the time to fill out your warranty registrationcard and send it in, please do so now.Before you return a product to the factory for service, we recommend you refer to the manu-al. Make sure you have correctly followed installation steps and operation procedures. If youare still unable to solve a problem, contact our Customer Service Department at (801) 568-7660for consultation. If you need to return a product to the factory for service, you MUST contactCustomer Service to obtain a Return Authorization Number.No returned products will be accepted at the factory without a Return Authorization Number.Please refer to the Warranty information on the following page, which extends to the first end-user. After expiration of the warranty, a reasonable charge will be made for parts, labor, andpacking if you choose to use the factory service facility. In all cases, you are responsible fortransportation charges to the factory. dbx will pay return shipping if the unit is still under war-ranty.Use the original packing material if it is available. Mark the package with the name of the ship-per and with these words in red: DELICATE INSTRUMENT, FRAGILE! Insure the package prop-erly. Ship prepaid, not collect. Do not ship parcel post.0.2 - Service Contact InfoiiiZC-BOB ZC-1 ZC-2 ZC-3 ZC-4