[. . . ] FRX+ Series Transformer Installation Instructions 1. ) 2. ) 3. ) Place the speaker face down (if possible) and remove the back access hatch. [. . . ] Plug the connectors on the end of the Voltage Selector wiring harness into the mating connectors from the input panel. Route the wiring harness around to the left of the woofer and, using the four #6 screws, mount the Voltage Selector board to the left of the transformer within easy reach of the transformer connector. (4 pilot holes are provided for this purpose but may be obscured by finish overspray. ) Secure wiring harness to baffle above and below the woofer on the left side using the cable ties and self-tapping #8 screws. Plug the transformer connector onto the desired voltage header, taking care to align all 8 pins. Apply the "Transformer Equipped" label over the 8 ohm wattage listings on the Input Panel and mark the corresponding box for the selected voltage. Replace the back access hatch and tighten all screws securely and evenly. [. . . ] For customer orders, contact Customer Service at: + 1 952 884-4051 Fax: + 1 952 736-4212 For warranty repair or service information, contact the Service Repair department at: 800/685-2606 For technical assistance, contact Technical Support at: 866/78AUDIO Specifications subject to change without notice. [. . . ]