Infinity BU-2 owner manual Connecting Your Subwoofer Cont ’D

Figure 5. Method when using single subwoofer.

CONNECTING YOUR SUBWOOFER (CONT ’D)

The BU-2 subwoofer may be connected to your system using the HIGH-LEVEL INPUTS (4) on the plate located on the rear panel of the subwoofer. Use ordinary lamp cord maintaining proper polarity (+ to + and – to –). Attach the lamp cord to the left and right HIGH-LEVEL INPUTS on the subwoofer and the other ends to the proper left and right OUTPUTS on your amplifier or receiver (see Figure 5).

If you plan to use two subwoofers (one for the left and the other for the right channel) connect wires from the left and right OUTPUT on your power amplifier or receiver and attach the other ends to the corresponding HIGH-LEVEL INPUTS on each subwoofer. Observe polarity (see Figure 6).

AMPLIFIER

OUTPUTS

RIGHT LEFT

+ – – +

	HIGH LEVEL INPUT
+	R	–	–	L	+
					LOW LEVEL
					INPUT	VOLUME	FREQUENCY
						CONTROL		Hz
					L			80˚
AUTO							60˚	120˚
POWER POWER							PHASE
ON OFF							-180˚ 0˚	180˚
					R
						MIN MAX	50˚	200˚
+	R	–	–	L	+
HIGH LEVEL OUTPUT

Figure 6. Method when using two subwoofers.

BU-2

SUBWOOFER

PLATE

AMPLIFIER

OUTPUTS

RIGHT LEFT

+ – – +

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

RIGHT BU-2

SUBWOOFER

PLATE

HIGH LEVEL INPUT

+ R –– L +

AUTO

POWER POWER

ON OFF

+ R –– L +

HIGH LEVEL OUTPUT

LEFT BU-2

SUBWOOFER

PLATE

7 ◆ Powered Subwoofer BU-2 – Owner’s Manual