Infinity BU-1 owner manual Connecting Your Subwoofer

TURN OFF ALL POWER...

IMPORTANT!

Figure 3a. Low-level signal can be used from your preamp's output by connecting second set of output jacks to the rear of your amplifier.

CONNECTING YOUR SUBWOOFER

There are several ways to connect your BU-1 subwoofer. Read this section carefully to determine which method is best suited for your installation.

The BU-1 may be fed directly with a low-level signal taken from your preamplifier’s output by using the second set of output jacks on the rear of your preamplifier (see Figure 3a). If your preamplifier has only one set of outputs you may use two (2) “Y” connectors (see Figure 3b) to connect your subwoofer. Use standard shielded leads terminated at each end with male RCA connectors. Connect one end of each stereo pair of leads to your preamplifier’s left and right outputs and connect the other end to the corresponding left and right LOW-LEVEL INPUTS (1) on the subwoofer.

If you are using a tube preamplifier and the connecting leads will be longer than 10 feet (3 meters), we recommend not using the above connection method. A tube preamplifier may not be able to handle the capacitance introduced by leads over 10 feet in length. Instead, try using the high-level connection methods listed on page 7.

OUTPUTS		(Preamp with two
L	R	sets of outputs)
		TO SATELLITE
L	R	SPEAKER AMPLIFIER

LEFT

HIGH LEVEL INPUT

+	R	–	–	L	+
					LOW LEVEL
					INPUT
AUTO					L
POWER POWER
ON OFF
					R
+	R	–	–	L	+
	HIGH LEVEL OUTPUT

BU-1

SUBWOOFER

PLATE

RIGHT

Powered Subwoofer BU-1 – Owner’s Manual ◆ 5