Do you have a question about the Infinity BU-120 and is the answer not in the manual?
Instructions to prevent electric shock, emphasizing not opening the unit or removing covers.
Details power sources, grounding, cord protection, antenna grounding, lightning, and power lines.
Identifies the various controls on the subwoofer's amplifier, including input terminals and settings.
Details connecting via low-level signal from preamplifier outputs, including using Y-connectors.
Details connecting using speaker wire to the high-level inputs on the subwoofer and amplifier outputs.
Guidance on setting the subwoofer volume for a harmonious blend with the system.
Details on adjusting the crossover frequency to match satellite speakers and achieve desired bass response.