Instruction/ maintenance manual of the product BB1235 SpeakerCraft
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Sp e ak e r C r af t ® Big Bang Power Amplifiers BB1235 Owner’ s Manual.
2 Audiophile Design Sophisticated design and superior internal components r esult in outstanding sound quality , performance and long term r eliability .
4 Pr otection LEDs indicate that either a fault in the wiring, the speaker , or the amplifier has caused the amplifier to shut down. Active LED indicates that the amplifier is working. 3 Diagram 1 - Fr ont Panel Master power switch. T urns off power to amplifier and Power Mode Cir cuitry .
6 Level contr ols for each channel. Gold plated individual channel inputs allow you to connect differ ent audio sour ces to each channel. Input Selection switch allows you to select between the common bus and auxiliary inputs, or the individual channel input.
8 Bus Input Allows the signal fr om a sour ce to be distributed to any of the 12 channels on the amplifier . Auxiliary Inputs Allows a the signal fr om a secondary source to be distributed to any of the 12 channels of the amplifier . Impedance Switch Select either 8 Ω or 4Ω to maximize amplifier performance with a variety of speaker loads.
10 Home Theater Example (Diagram 8) This example uses the power amplifier to drive the speakers in the home the- ater system. The two channels r emaining ar e used to pr ovide music to a sepa- rate ar ea or r oom. This configuration utilizes the bridging mode to pr ovide additional power .
12 Room 4 VOLUME CONTROL LEFT SPEAKER RIGHT SPEAKER Room 5 VOLUME CONTROL LEFT SPEAKER RIGHT SPEAKER Room 6 VOLUME CONTROL LEFT SPEAKER RIGHT SPEAKER AUDIO SOURCES CD Player L R OUTPUT T ape Deck L R .
14 ZONE 2 VOLUME CONTROL LEFT SPEAKER RIGHT SPEAKER VOLUME CONTROL LEFT SPEAKER RIGHT SPEAKER VOLUME CONTROL LEFT SPEAKER RIGHT SPEAKER SOURCES CD Player #1 L R OUTPUT T ape Deck L R OUTPUT DVD Player.
16 ZONE 4 ZONE 5 ZONE 6 PEAKER VOLUME CONTROL LEFT SPEAKER RIGHT SPEAKER VOLUME CONTROL LEFT SPEAKER RIGHT SPEAKER VOLUME CONTROL LEFT SPEAKER RIGHT SPEAKER NE 3 TPUT R ZONE 4 OUTPUT L R ZONE 5 OUTPUT.
18 3 VOLUME CONTROL PEAKER RIGHT SPEAKER Room 4 VOLUME CONTROL LEFT SPEAKER RIGHT SPEAKER Room 5 VOLUME CONTROL LEFT SPEAKER RIGHT SPEAKER Room 6 VOLUME CONTROL LEFT SPEAKER RIGHT SPEAKER DVD INPUT CD.
20 VOLUME CONTROL LEFT SPEAKER RIGHT SPEAKER DVD INPUT CD INPUT R UT R L R L R SOURCES CD Player L R OUTPUT DVD Player L R OUTPUT VCR L R OUTPUT 19 Diagram 8 - Home Theater Installation VCR INPUT L R .
22 CAUTION: All connections and switching must be done with the amplifier’ s master power switch positioned to “off”. Select the Power Mode Selection Refer to the Power Mode Selection ar ea under installation considerations to determine which setting to use to turn the amplifier on.
Selecting Bridge Mode (See Diagram 12) Under normal operation, this should be left in the 8 ohm position as illustrat- ed in Diagram 11 . It is sometimes desirable to combine two channels into one thr ough bridging. The output of the combined channels can then be used to power one speaker .
26 Connecting the Line Level Audio Inputs CAUTION: Only make connections when the amplifier is turned off. Ther e ar e thr ee ar eas that an input signal can be connected, BUS, AUX and LINE IN. Refer to the System Design Examples to determine which is best suit- ed for your application.
28 No sound is hear d on one or some channels. (Continued) The level adjustment on the channel is turned all the way down. T urn it clockwise to raise the volume. Some or all of the internal fuses ar e blown. Return the amplifier to your SpeakerCraft dealer for servicing.
Limited T wo-Y ear W arranty SpeakerCraft Inc. warrants to the original retail pur chaser only that this SpeakerCraft pr oduct will be free fr om defects in materials and workmanship for a period of two years, pr ovided the product was pur chased fr om a SpeakerCraft Authorized Dealer .
Sp e a k e r C r af t ® LIT 8/00 940 Columbia Ave., Riverside CA 92507-4492 (800) 448-0976 Fax (9 51 ) 787-8747 www .speaker craft.com.
An important point after buying a device SpeakerCraft BB1235 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought SpeakerCraft BB1235 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data SpeakerCraft BB1235 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, SpeakerCraft BB1235 you will learn all the available features of the product, as well as information on its operation. The information that you get SpeakerCraft BB1235 will certainly help you make a decision on the purchase.
If you already are a holder of SpeakerCraft BB1235, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime SpeakerCraft BB1235.
However, one of the most important roles played by the user manual is to help in solving problems with SpeakerCraft BB1235. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device SpeakerCraft BB1235 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
