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Table of Contents
- 1 Power Amplifiers
- 2 Safety Instructions
- 3 Explanation of Graphical Symbols
- 4 Table of Contents
- 5 Installation Considerations
- 6 Power Mode Selection
- 7 Operating Multiple Speakers
- 8 Installation
- 9 Voltage Input
- 10 Front and Back Panel Diagrams
- 11 Connecting the Speaker Wires
- 12 Operation
- 13 Troubleshooting
- 14 Specifications
- Download this manual
Big Bang
Power Amplifiers
BB275 75 Watt Amplifier Faceplate
SpeakerCraft
POWER
Type;
Logo..................22pt Bauhaus Bold Red PMS
Power Button....12pt Eras Demi-Bold PMS Cool Gray 1
Lights................10pt Eras Demi-Bold PMS Cool Gray 1
Model#..............12pt Eras Demi-Bold PMS Cool Gray 1
B B 2 7 5
O w n e r 's M a n u a l
ACTIVE
PROTECTION
485C
BB275
L
R
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Table of Contents
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Summary of Contents for SpeakerCraft Big Bang BB275
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Page 1: Power Amplifiers
Big Bang Power Amplifiers BB275 75 Watt Amplifier Faceplate SpeakerCraft BB275 ACTIVE POWER PROTECTION Type; Logo....22pt Bauhaus Bold Red PMS 485C Power Button..12pt Eras Demi-Bold PMS Cool Gray 1 Lights....10pt Eras Demi-Bold PMS Cool Gray 1 Model#....12pt Eras Demi-Bold PMS Cool Gray 1 B B 2 7 5 O w n e r ’s M a n u a l... -
Page 2: Safety Instructions
SAFETY INSTRUCTIONS APPLICABLE FOR USA, CANADA OR WHERE APPROVED FOR USAGE CAUTION: TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE PLUG TO WIDE SLOT, INSERT FULLY. CAUTION: To reduce the risk of electric shock, do not remove cover (or back). No user-service- able parts inside. -
Page 3: Table Of Contents
Thank you for purchasing the SpeakerCraft BB275 power amplifier. The BB275 contains the excellent performance and reliability that SpeakerCraft products have been recognized for. For best performance please carefully read the instruc- tions in this manual. Table Of Contents Page... -
Page 4: Installation Considerations
INSTALLATION CONSIDERATIONS Placement • Place the amplifier with the feet resting on a solid flat level surface. • Place the amplifier in a well-vented area to provide proper cooling. Allow at least 4” of space above amplifier. In areas that lack proper ven- tilation, such as tight cabinets or racks, it may be necessary to install small fans to create air movement. -
Page 5: Operating Multiple Speakers
Depending on the model, up to eight pairs of speakers can be turned on or off independently of each other, while providing protection to your amplifier at the same time. Your SpeakerCraft dealer can provide you with details on the selectors available. -
Page 6: Installation
3.5mm jack. Be aware that the tip of the plug will be (+). If you are unsure about using this feature please contact an authorized SpeakerCraft dealer for assistance. -
Page 7: Front And Back Panel Diagrams
Front and Rea Active LED indicates that the amplifier is working SpeakerCraft ACTIVE POWER PROTECTION 75 Watt Amplifier Backplate Protection LED indicates that either a fault in Master power switch. Turns the wiring, the speaker, or the amplifier has off power to amplifier and Type;... - Page 8 Cascade Audio Output Jacks. Connects to the line level inputs of other amplifiers. Allows daisy chaining of up to 5 SpeakerCraft amplifiers ® 8 Amp A/C Fuse...
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Page 9: Connecting The Speaker Wires
Audio Outputs" (see Diagram #2). By using standard audio patch cables, you can connect these outputs to the inputs of another amplifier. Up to 5 SpeakerCraft amplifiers can be daisy-chained together. AC Power Plug the socket of the AC cord supplied with the amplifier into the receptacle on the rear of the amplifier. -
Page 10: Operation
Operation See Diagram #2 for the location of the following. Power Switch The switch marked "Power" on the front panel of the amplifier will turn off all amplifier circuitry no matter which turn on mode is selected. Refer to the "Power Mode Selection"... -
Page 11: Troubleshooting
The amplifier is designed to function trouble-free. Most problems occur because of operating errors. If you have a problem please check the troubleshooting list first. If the problem persists, contact your authorized SpeakerCraft dealer or SpeakerCraft customer service at 800-448-0976. The Problem Possible Causes And Solutions... -
Page 12: Specifications
Specifications BB275 Power Output: 75 Watts per channel RMS at 8 ohms 100 Watts per channel RMS at 4 ohms Input Sensitivity: .77V for 8 ohm rated output Input Impedance: 33K ohms Total Harmonic Distortion: .08% 20Hz to 20kHz @ 8 ohms 20Hz to 20kHz @ 4 ohms Power Consumption: 500 Watts @ 120VAC, 60Hz... - Page 13 940 Columbia Avenue, Riverside CA 92507-4492 (800) 448-0976 Fax, (951) 787-8747 www.speakercraft.com LIT 10/99...
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