Table of Contents
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Table of Contents
Related Manuals for Infinity BU-1
Summary of Contents for Infinity BU-1
- Page 1 Powered Subwoofer Model BU-1 Owner’s Manual Part # 930-7304 ®...
- Page 2 NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED PERSONNEL THIS INFINITY PRODUCT IS DESIGNED FOR 120-VOLT USE ONLY! FOR DETAILED SAFETY PRECAUTIONS, PLEASE SEE PAGE 13 IN THIS OWNER'S MANUAL FOR “IMPORTANT SAFETY INSTRUCTIONS.” L’éclair avec le symbole de la flèche, placé dans les limites dun triangel équilatéral est prévu pour avertir l’utilisateur de la présence de “tension dangereuse”...
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Page 3: Important Safety Instructions
1) Read Instructions – All the safety and operating instructions should be read before the product is operated. 2) Retain Instructions – The safety and operating instructions should be retained for future reference. 3) Heed Warnings – All warnings on the product and in the operating instructions should be adhered to. - Page 4 MPORTANT NTRODUCTION The Infinity BU-1 Powered Subwoofer has been designed to enhance the bass frequencies of any audio system. This subwoofer may be used with speakers of any size. Obviously, the greatest bass enhancement will be achieved when the subwoofer is connected with speakers that do not have the capability to create deep bass.
- Page 5 We recommend placing the BU-1 at least 2 to 3 feet away from a television or a computer’ s disc- drive system to prevent smearing the colors of the TV picture or erasing of the magnetic drive.
- Page 6 As a starting point, initially place the subwoofer behind your right-channel satellite speaker, about 3 or 4 inches from the wall. We suggest trying this location first because in an orchestra, the bass instruments are usually located in the back and to the right (see Figure 1).
- Page 7 If using an unswitched AC outlet on your receiver or amplifier is not possible, connect your subwoofer to an unswitched AC wall outlet. The BU-1 includes an “Auto-Sensing” circuit that automatically turns the subwoofer on when detecting music or voice signals. The absence of an audio signal for approximately six minutes will cause the auto-sensing circuit to shut down the system.
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Page 8: Connecting Subwoofer
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”... - Page 9 POWER LEFT BU-1 HIGH LEVEL OUTPUT SUBWOOFER PLATE 6 Powered Subwoofer BU-1 – Owner’ s Manual ONNECTING OUTPUTS LEFT When using a single subwoofer, you MUST use a pair of stereo low-level leads from your preamplifier’ s outputs. When using two subwoofers, one for the left and another for the right channel, connect the left preamplifier output to BOTH the left and right LOW-LEVEL INPUTS of the subwoofer used for the left channel by using a Female-to-Male “Y”...
- Page 10 ONNECTING The BU-1 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).
- Page 11 Depending on whether you are using one or two BU-1 subwoofers, connecting your satellites can be accomplished in one of two ways. If you are using a single BU-1 with a pair of satellites, connect them as shown in Figure 7.
- Page 12 (Fig. 2) to 12 o’clock. (Fig. 2) to 12 o’clock. (Fig. 2) to the “ON” position. (Fig. 2) control at the 12 o’clock (Fig. 2) until you obtain a pleasing Powered Subwoofer BU-1 – Owner’ s Manual 9...
- Page 13 However, if you do hear distortion continuously while playing music, the input signal level (feeding the BU-1) may be too high and should be lowered. If this doesn’t solve the problem, verify the connections and check for proper operation of other components in the audio chain.
- Page 14 If everything seems to be in good working order and the subwoofer still malfunctions, DO NOT ATTEMPT ANY REPAIRS! Contact your Infinity dealer and get the name of the authorized Infinity service center near you. If there is no facility near you, contact Infinity's Customer Service Department at (800) 553-3332, or write: Infinity Systems, Inc.
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Page 15: Specifications
ERFORMANCE RIVE NITS INISH IMENSIONS 12 Powered Subwoofer BU-1 – Owner’ s Manual – BU-1 PECIFICATIONS Frequency Response: 45 ~ 150Hz, ±3dB Input Sensitivity: Low Level: 50mV High Level: 1V Input Impedance: Low Level: 10k High Level: 200k Output: 50W RMS Driver: 8"... - Page 16 Infinity continually strives to update and improve existing products, as well as create new ones. The specifications and construction details in this and related Infinity publications are therefore subject to change without notice. ©1999 Infinity Systems, Inc., 250 Crossways Park Drive, Woodbury, NY 11797 USA (800) 553-3332 www.infinitysystems.com...
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