User manual BOSTON ACOUSTICS LCAI220

[. . . ] LCAi220 Local Control Amplifier LCAi220 Important Safety Instructions This symbol found on the apparatus indicates hazards arising from dangerous voltages. This symbol found on the apparatus indicates the user should read all safety statements found in the user manual. To reduce the risk of fire or electric shock, do not expose this product to rain or moisture. 1. Do not block any ventilation openings. Install in accordance with the manufacturer's instructions. [. . . ] Class 2 cable (designated CL2, CL2P, or CL2R) is typically appropriate for use in residential construction. This is a plastic jacketed multi-wire cable. Class 3 cable and other suitable substitute cables may also be used. Table 725. 61 of the 2005 NEC specifies suitable cable substitutions. The use of unjacketed single wires is not permitted. For commercial or multi-unit residences, other wiring methods and cable types may be required. If you are not sure of the requirements for your area, check with the local wiring inspector, or with an electrician or custom A/V integrator. You will require 4 conductors from the amplifier location to the LCAi220 input, using one 4-conductor or two 2-conductor cables; and 2 conductor cables from the LCAi220 outputs to each speaker location in the room. Electricians and Custom A/V integrators are good choices for installing such devices. If at any time you feel unsure about wiring, connecting or choosing locations consult with a professional. 4 Powering the LCAi220 A 16VDC power supply is included for powering the the LCAi220. There are two separate connection points for powering the LCAi220; a front mounted connection for local powering of the LCAi220 and a rear mounted connection for central powering of the LCAi220. It is only necessary that you connect power to one of the connections. Front Connection When using the front mounted input, connect the plug from the power supply to the input on the LCAi220. The power supply plugs into a standard 110VAC outlet. Rear Connection When using the rear connection, the power supply is located with the central audio system and power wire is run from that location to the LCAi220. This configuration will require the use of the included LCApi power interface. Labeling wire is essential and saves significant time during the final hookup of your system. Make sure to leave an appropriate length in each location making installation easy and neat. DO NOT RUN SPEAKER WIRE PARALLEL WITH THE HOUSE LIGHT AND POWER CABLES. Locating speaker wire to close to electrical wire and devices can result in undesired noises such as buzzing, humming and popping noises through the speakers. Locating speaker wire too close to electrical wire and devices can result in undesired noises such as buzzing, humming and popping noises through the speakers. It is OK to cross over light and power cables if necessary but do so infrequently and only at 90° angles. When at all possible, keep speaker wire as much as 20-inches (50cm) from light and power cables and a stud bay away from electrical devices such as switches and outlets. Following these simple precautions will insure that there is no noise from an electrical device. Retro-fitting an Existing Home Wiring and installing systems in an existing home can be difficult. [. . . ] Note: Only needed if rear power input is not used. Figure #1 Figure #2 Figure #3 Front Connection Diagram Figure #4 A 12V Trigger / Video In 12V Trigger / Video Pass Through C D E B Figure #5 A A. Left and Right RCA Inputs 15VDC Power Input 12V Trigger / Video In 12V Trigger / Video In B. B C. E. D E F C D. 12V Trigger / Video Pass Through Left and Right High Level Inputs 12V Trigger / Video Pass Through 12 Set Up Instructions Central Music System Configuration Adjust the levels for the central music system. If an in-wall volume control is used, follow its instructions for configuration before continuing. If a volume control is not used, start with the volume on the central music system low, and turn it up until a comfortable volume level is achieved. Adjusting the Highpass (HP) Filter on the LCAi220 The LCAi220 features a selectable highpass filter to remove low frequency information from the local speakers when amplified by the LCAi220. [. . . ]