http://www.neonlightssigns.info/faber-speakers-audio/
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EVLED J266B LED Sign Sonus Faber Speakers Audio Light Sign |  |
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US $9.99 | 27d 20h 27m |
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J266B LED Sign Sonus Faber Speakers Audio Light Sign | |
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US $9.99 | 21d 15h 3m |
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Faber Speakers Audio
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EVLED J266B LED Sign Sonus Faber Speakers Audio Light Sign | |
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US $9.99 | 27d 20h 27m |
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J266B LED Sign Sonus Faber Speakers Audio Light Sign | |
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US $9.99 | 21d 15h 3m |
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No items matching your keywords were found.
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No items matching your keywords were found.
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No items matching your keywords were found.
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RE AUDIO RE6.5FR SPEAKERS (2-WAY 6.5) $51.99 RE AUDIO RE6.5FR SPEAKERS (2-WAY 6.5") |
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PLANET AUDIO TQ322 ANARCHY SPEAKERS (2- $24.99 PLANET AUDIO TQ322 ANARCHY SPEAKERS (2- |
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PLANET AUDIO TQ413 ANARCHY SPEAKERS (3- $37 PLANET AUDIO TQ413 ANARCHY SPEAKERS (3- |
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PLANET AUDIO TQ622 ANARCHY SPEAKERS (2- $32.99 PLANET AUDIO TQ622 ANARCHY SPEAKERS (2- |
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PLANET AUDIO TQ422 ANARCHY SPEAKERS (2- $24.99 PLANET AUDIO TQ422 ANARCHY SPEAKERS (2- |
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PLANET AUDIO TQ522 ANARCHY SPEAKERS (2- $27.99 PLANET AUDIO TQ522 ANARCHY SPEAKERS (2- |
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PLANET AUDIO TQ573 ANARCHY SPEAKERS (3- $35.99 PLANET AUDIO TQ573 ANARCHY SPEAKERS (3- |
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PLANET AUDIO TQ693 ANARCHY SPEAKERS (3- $41.99 PLANET AUDIO TQ693 ANARCHY SPEAKERS (3- |
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PLANET AUDIO TQ623 ANARCHY SPEAKERS (3- $33.99 PLANET AUDIO TQ623 ANARCHY SPEAKERS (3- |
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PLANET AUDIO TQ462 ANARCHY SPEAKERS (2- $27.99 PLANET AUDIO TQ462 ANARCHY SPEAKERS (2- |
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BOSS AUDIO CH4230 CHAOS SERIES SPEAKERS $27.99 BOSS AUDIO CH4230 CHAOS SERIES SPEAKERS |
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BOSS AUDIO CH5730 CHAOS SERIES SPEAKERS $33.99 BOSS AUDIO CH5730 CHAOS SERIES SPEAKERS |
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RE AUDIO RE5FR SPEAKERS (2-WAY 5.25) $54.99 RE AUDIO RE5FR SPEAKERS (2-WAY 5.25") |
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Pyle Audio Pyle (PLTA8N) Multi-element Speakers $102.46 Pyle Audio Pyle (PLTA8N) Multi-element Speakers |
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Pyle Audio Pyle PylePro PDWR63 Waterproof Speakers $82.22 Pyle Audio Pyle PylePro PDWR63 Waterproof Speakers |
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Boss Audio MR30 White Box Speakers (Pair) $75.53 Boss Audio MR30 White Box Speakers (Pair) |
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M3300SF PC Audio Speakers $99.95 M3300SF PC Audio Speakers The super-sleek flat panel 2-way satellite speakers are combined with a powerful 6 1/2 inch subwoofer, making the M3300SF a spectacular performer for all audio sources. Vivid, deep sound is produced by the 3 inch midrange and 10mm tweeter satellites as well as the computer designed subwoofer, extracting every subtle nuance from all sources. The wired remote control with mute function incorporates a built-in headphone jack, perfect for late night movies, gaming and other audio applications. Total Power Output: 12 Watts x 2 Satellite Speakers + 30 Watts x 1 SubwooferBass adjustmentMagnetically shielded2-Year Limited Warranty |
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Audio-Technica ATSP21 Compact Speakers $17.95 These compact portable speakers fold together for easy portability. Enjoy your music or share it with others by inserting the speakers' mini plug into the headphone jack of your portable player or computer. No batteries or AC connection required, since the speakers are powered from your audio device. |
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RE AUDIO RE5X7FR SPEAKERS (2-WAY 5 X $56.99 RE AUDIO RE5X7FR SPEAKERS (2-WAY 5" X |
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RE AUDIO RE6X9FR SPEAKERS (3-WAY 6 X $78.99 RE AUDIO RE6X9FR SPEAKERS (3-WAY 6" X |
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Sonus Faber Shakedown
Eliminating Home Theater Hum and Noise
You've all heard it, that dreaded 60Hz hum through the speakers of a home theater or house audio system. Hopefully you heard it at a friend's house and not your own. It can drive you completely nuts. You may have even tried, unsuccessfully, to fix the little noise problem. That can make you even more crazy. What causes that horrendous noise through your home theater speakers?
More often than not humming and buzzing through your speakers is caused by a grounding problem. There are three main ground problems that cause problems in an audio / video system. These are ground loops, improper grounding and lack of a ground altogether. The other possible culprits that can cause noise are bad cables, a faulty piece of equipment or electrical noise from a lighting dimmer or electric motor. There are steps you can take to troubleshoot the noise and eliminate it from your theater or entertainment system.
The first step to is to find out where it is coming from. Disconnect your source and display equipment from your receiver or surround sound processor. If the noise stops, connect them back to the receiver or processor on at a time until the noise returns. When the hum comes back, you found where the noise is entering your system. Note that if you are connecting remote equipment, such as running the signal from your theater room DVD player to the TV in the bedroom, your chances to pick up noise increase dramatically. With such long runs, noise can be induced into the long cable runs from adjacent electrical wiring. It is also easy to create a ground loop, because the equipment is plugged into two different, widely separated outlets, on different electrical circuits.
If the noise is caused by a cable box, the noise is likely caused by the cable TV ground. To test this theory, disconnect the incoming cable TV feed to the rear of the cable box or TV while they are still connected to the rest of the system. If the noise is eliminated by disconnecting the TV cable, the problem is the cable TV ground. You can electrically decouple the cable TV feed from your system with a ground breaking transformer. These are available from many sources. Be advised that many newer, digital cable TV systems require any device in the signal chain to pass a full 1,000 Mhz. Some of the older ground break transformers will not do this. Be sure to check the specifications of whatever device you are purchasing to verify it will pass the digital cable TV signal.
If the noise is from your projector, TV, or monitor, it is most likely caused because the video display device is plugged into a different outlet than the other a/v equipment. It could be on a different circuit as well. These circuits may have two different ground potentials. That is, the resistance to ground is different on each circuit. A difference in resistance to ground from one ground point to another can cause the dreaded ground loop. If you get a ground loop, current flows between the two components. If the current flows through the components internal audio signal ground, you will get a hum.
You can use an isolation transformer, similar to the type used for cable TV ground problems, to eliminate the electrical connection from one component to the other. These transformers are inserted in line with the audio signal connection between the two components. If there is no audio connection between the components, the problem may be current flowing through the video portion. In this case, a video isolation transformer should be used to eliminate the ground loop.
Sometimes power conditioners will stop noise problems by placing equipment on different, electrically isolated outlets. This is done using isolation transformers. This can be ineffective however, due to the differences in internal construction of different power conditioning equipment. Some safety regulations, such as UL 1950, specify that an isolation transformer is only allowed to isolate the hot and neutral wires; the grounding wire must be passed straight through. If this is the case, the ground loop problem may still exist because many communication circuits are connected to the grounding conductor and not the neutral. In this case, the isolation transformer, or any power conditioner or UPS with an isolation transformer will have absolutely no affect on the grounding problem.
The noise may be generated externally, from a dimmer or refrigerator compressor for example, and coming in through the main power input on the audio video equipment. In this case, a high quality power conditioner may be effective in reducing or eliminating the noise problem. You may also find that one of the signal interconnecting cables in your system is faulty. This can also cause noise problems. Check for this by swapping the cables with one that you know to be good.
You can solve most noise problems in your home theater or multi room audio/video system by taking the systematic, step-by-step approach. Work your way up the signal chain, eliminating each piece of equipment as you go. If you have nothing connected to your speakers except the speaker wiring, and they still hum, the problem is noise induced into the speaker wiring from adjacent power cables. Other than that case, most problems are caused by ground problems, which you can find, and solve, if you take it one step at a time.
About the Author
Steve has 15 yrs in the consumer electronics industry. He is a CEDIA certified designer with ISF and THX certificates. His experience includes: installer and programmer; system designer; business unit director for an a/v importer; sales rep for a CE distributor; and principal of a $1.5M+ CEDIA firm. He's now senior sales engineer for Digital Cinema Design in Redmond, WA. For more information on how to make your home theater better, and what's on the horizon, including CEDIA and CES show reports, see The Home Theater and Automation Guide
