http://www.traffic-station.com/inline-noise-filter/
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 15 AMP IN LINE ENGINE NOISE SUPPRESSOR NOISE FILTER 201  US $5.99
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 25 Amp In Line Noise Filter Engline Suppressor c1029 US $19.99
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 2Wire DSL ADSL Single Phone Line Inline Noise Filter US $1.00
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 Raptor NF125 12 AMP In Line Noise Filter FREE SHIPPING US $13.99
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 X10 PRO 3 Wire In Line Noise Filter XPF US $12.88
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 TWO PACK X10 PLUG IN LINE NOISE FILTER XPPF US $17.99
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 THREE PACK X10 PLUG IN LINE NOISE FILTER XPPF NIB US $25.99
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 THREE PACK X10 PLUG IN LINE NOISE FILTER XPPF US $25.99
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 THREE PACK X10 PLUG IN LINE NOISE FILTER XPPF NIB 3 PK US $29.97
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Pyramid NS12 12 Amp InLine Noise Suppressor List Price: $3.99 Sale Price: $2.99 Average Rating:   |
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Easily Installed12 Amps Reduces and Eliminates Engine Interference Compatible w/Receiver, Equalizers & Amplifiers Easily Installed |
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X10 Pro In-Line Noise Filter List Price: $29.95 Sale Price: $29.95 |
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Filters out electrical noise above and below 121 Khz (where X10 signals are located) with permanent in-line wiring. Can be installed between hot and neutral wiring to reduce electrical interference up to 90%. |
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Suncourt DM105 Duct Muffler Inline Noise Muffler 5" Sale Price: $58.34 |
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The DuctMuffler In-Line Noise Muffler reduces noise heard through registers from adjacent rooms or noisy neighbors. Does not restrict airflow through duct Easy to install Maintenance free Building Code Compliant, Meets NFPA Standards 90A and 90B UL Listed, Class I Air Duct |
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Pyramid NS50 35 Amp InLine Noise Suppressor List Price: $17.99 Sale Price: $8.64 Average Rating:  |
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35 Amp Transistorized Noise SuppressorTransparent Tube Housing Easily InstalledReduces and Eliminates Ignition/Alternator Noise Compatible w/ Receivers, CB’s, Equalizers & Amplifiers |
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Pyramid NS10 10 Amp InLine Noise Suppressor List Price: $2.99 Sale Price: $1.56 Average Rating:  |
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Easily Installed10 Amps Reduces and Eliminates Engine Interference Compatible w/Receivers, Equalizers & Amplifiers |
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PIE EIS-ILNO In-Line RCA Audio Noise Filter/Ground Loop Isolator List Price: $20.95 Sale Price: $16.00 |
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OMNI DIRECTIONAL IN-LINE RCA TO RCA NOISE FILTER. |
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Pyramid NS2 10 Amp InLine Noise Suppressor List Price: $4.99 Sale Price: $2.99 Average Rating:  |
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Easily Installed10 Amps Reduces and Eliminates Engine Interference Compatible w/Receivers, Equalizers & Amplifiers |
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Metra AWNSFL In-Line Noise Filter - 10 Sale Price: $7.18 |
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IN-LINE NOISE FILTER - 10
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Passive Noise Filter Sale Price: $21.60 |
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The N-25 passive alternator noise filter was designed to eliminate in-line noise in auto sound systems. Applications include AM/FM cassette decks, compact disc players, equalizers and amplifiers, cellular phones, CB radios, etc... |
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25 Amp Noise Suppressor Sale Price: $34.32 |
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The N-700 electronic noise suppression filter uses a passive torroid, twin power transistor, electronic filters and a broad band radio frequency trap to shunt the high frequency noise to ground. 25 amps |
Inline Noise Filter
amp is picking up engine noise, tried noise filter, what else?
i have two 10" subs in the trunk hooked up to a pyramid 240 amp, i had them in my other car, and they worked great, but now im wiring them up in this car and the amp is picking up engine noise, i had a filter on the power line of my other car(old car, custom install, running power line with inline fuse from battery to switch to filter to deck) so i tried that, had an extra thing i bought before that gives you a wire from an open fuse spot, hooked it up, worked fine with car off, turned it on and it was really crappy, then put in the filter, no difference, figured maybe the line to the cd player(the one that is only on when the key is on) would be a reasonable one to tap into since it wasnt getting any interference with the car on, but still the same issue, turning the amp down doesnt do anything, what do i need to do to make it stop making this noise? thanks
sounds like you have a bad ground.. try cleaning up the spot or relocating your ground wire from your amp... if that doesnt work try a ground loop isolator on your RCA cables.. make sure your power wires and your RCA's are run on opposite sides of the car.
