Which Im still unclear as what causes a grounding issue and how to fix it without using a ground lift switch or converting from a 3 prong to a 2 prong,which both seems like band aids to me. I dont see why I should have to buy hum eliminators or even have to use a ground lift switch, when the furmans are supposed to take any noise off the power lines,protect my equipment and correct grounding issue noise. I just know I am getting very irritated because I bought 5 power conditions that now seem like they are not doing much of anything. My (limited) understanding of ground loops is limited to when two different power circuits are used (say. Some one told me that power strips from office max are quiet but I dont know he was referring to hum or or that they get rid of other kind of noise,like static. (same speakers, sound card and power strip). Isnt the furmans supposed to have hum eliminators in them? Is hum a ground problem and can ground problems introduce different noise issues other then hum?ģ.And do Hum eliminator adapters do the same thing as ground lifts or whats the deal them?Ĥ.And are there any power strips that have hum eliminators built in. And what are the other causes for noise besides hum?Ģ. I have everything going into Furman power conditioners.ġ.But the question is why am I having to use ground lift switches to reduce noise?Is this what the furman is supposed to be doing? Correcting ground noise issues. Then, unscrew the ground loop screw on the back of your subwoofer.So IM trying to solve all my noise issues. Connect the chassis screws on your sub and receiver with 14-gauge wire.(If this plug is a 3-wire plug, you won’t be able to reverse it.) AC power cord, 15 amp breaker, TVSS grounding lug and rugged all metal rackmount case. Reverse the AC plug for your A/V receiver or subwoofer. Includes 12 rear facing NEMA 5-15R and one front facing outlet, 15-ft.Plug the subwoofer into a separate outlet from the rest of your setup.Power your radio system, and tune in to any station. Likewise, attach the other two male RCA connectors from the speaker to the secondary side of the ground loop isolator. Finally, you can test these other procedures if you don’t have access to a ground isolator: On the primary side of the ground loop isolator, connect the two male RCA connectors two their female counterparts.If the buzz remains even after you’ve disconnected the TV, you’ll need a ground isolator between the subwoofer and your A/V receiver.Check reviews before making your purchase to ensure your system is compatible. One issue to consider is that transformer-based isolators are universally compatible with analog feeds, but they may interfere with HDTV signals. If the hum disappears, the solution is to install an in-line ground isolator.PYLE-PRO Compact Mini Hum Eliminator Box-2 Channel Passive Ground Loop Isolator,Noise Filter, AC Buzz Destroyer, Hum Killer w/ 2 1/4-Inch TRS Input and Output for 2 Mono /1 Stereo Signal - PHE300. Reconnect the subwoofer from its input to the receiver’s output and disconnect the offending feed from the outboard box or tuner (disconnect the cable before any splitters). Amazon Basics Rectangular 12-Outlet Power Strip Surge Protector 4,320 Joule, 10-Foot Cord, Black.If it does, the ground loop is probably coming in through your cable/satellite feed. Transformer Operation: The two winding Isolation Transformer is a useful building block for power conditioning applications. Unplug the coaxial cable connected to your subwoofer and determine if the buzz vanishes. This isolation can also useful where Ground Potential Rise protection can not be afforded by normal bonding procedures.
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