Boston Acoustics XB4 manual Connections, How to Connect Using the Speaker Terminals

Connections

NOTE: Power is always supplied to the subwoofer electronics unless it is unplugged from the power outlet. The auto-on circuitry only activates or deactivates the power amplifier. Make sure your subwoofer and receiver are unplugged when making the connection.

Line level: Use one of the “line level in” jacks with most systems. These inputs accept the line level signal from your receiver’s subwoofer output. When using the “use crossover control” input, the subwoofer’s circuitry filters out the high frequencies and sends the remaining low frequencies to the subwoofer power amplifier.

Speaker level: Use these high-level terminals with receivers that do not have a subwoofer output. The speaker inputs accept both left and right channel speaker signals from your receiver.

How to Connect Using the Speaker Terminals

We recommend 18-gauge wire or thicker for runs up to 15 feet (4.5m), and 16-gauge wire or thicker for longer runs. Separate the first few inches of the wire conductors. Strip off 1⁄2-inch (13mm) of insulation from the ends of each speaker wire to expose the two conductors and tightly twist the wire strands.

WARNING: To prevent electrical shock hazard, always switch off the amplifier or receiver when making connections to the speaker.

When making all connections, be sure to connect the + (red) on the speaker to the + (red) on the amplifier, and the – (black) on the speaker to the – (black) on the amplifier.

–	1/		"
	+ – –	4	+

+

IMPORTANT: Typically, one side of the wire is smooth. Connect this side to the – (black) connection. The other side has a rib or stripe. Connect this to the + (red) connection.

Using the spring terminal posts: The spring terminal posts permit easy connection to banana plugs, spade lugs, and bare wire.

Push the the top of the terminal down by approximately 1⁄4-inch (6mm), exposing the hole. Insert the wire in the hole and release the terminal.

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