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  1. Home
  2. Discontinued Car Audio & Electronics
  3. Discontinued Car Audio Installation & Accessories
  4. Discontinued Car Amplifier Installation & Accessories
  5. Discontinued Noise Filters

Discontinued Noise Filters

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Noise Filter Type
This designates the type of noise filter listed.

Ground Loop Isolators are connected in-line with the RCA interconnects or other audio cables.

Power Line noise filters connect to the power line of the receiver and help reduce noise from the source.

Pop Eliminator noise filters are designed to remove the "pop" that occasionally happens in some systems when the vehicle is turned on.

Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
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NVX XGLIRCA

Ground Loop Isolator for RCA/Interconnect Auxiliary Aux Connections

XGLIRCA big DISCONTINUED
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NVX XGLIRCA

Ground Loop Isolator for RCA/Interconnect Auxiliary Aux Connections

• Eliminates Engine Noise By Isolating Ground Loops
• Use With Any Audio Device That Has RCA Connectors

9

• Eliminates Engine Noise By Isolating Ground Loops
• Use With Any Audio Device That Has RCA Connectors

NVX XGLIRCA (Open Box, Good)

Ground Loop Isolator for RCA/Interconnect Auxiliary Aux Connections

XGLIRCA big DISCONTINUED
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NVX XGLIRCA (Open Box, Good)

Ground Loop Isolator for RCA/Interconnect Auxiliary Aux Connections

• Eliminates Engine Noise By Isolating Ground Loops
• Use With Any Audio Device That Has RCA Connectors

• Eliminates Engine Noise By Isolating Ground Loops
• Use With Any Audio Device That Has RCA Connectors

PAC CSS-12

12 Amp Noise Filter

CSS-12 big DISCONTINUED
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PAC CSS-12

12 Amp Noise Filter

• 12 Amp Wide Spectrum Noise Filter
• Supresses Alternator and Ignition Noise
• Helps Buffer Rapid Trainsient Power Drops

8

• 12 Amp Wide Spectrum Noise Filter
• Supresses Alternator and Ignition Noise
• Helps Buffer Rapid Trainsient Power Drops

Boss B25N

2-Channel Ground Loop Isolator Filter

B25N big DISCONTINUED
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Boss B25N

2-Channel Ground Loop Isolator Filter

• 2-Channel Ground Loop Isolator Filter
• Blocks Ground Loops Within An Audio System
• Connection Type: RCA
• Reduces Background Noise Without Impairing Sound Quality

6

• 2-Channel Ground Loop Isolator Filter
• Blocks Ground Loops Within An Audio System
• Connection Type: RCA
• Reduces Background Noise Without Impairing Sound Quality

The Install Bay IBGLI

Ground Loop Isolator, Noise Filter/Killer/Suppressor

IBGLI big DISCONTINUED
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The Install Bay IBGLI

Ground Loop Isolator, Noise Filter/Killer/Suppressor

• High Quality 15 Amp Ground Loop Isolator
• Retains Sound Quality
• Signal Noise Elimination
• Female RCA Inputs
• Male RCA Outputs

2

• High Quality 15 Amp Ground Loop Isolator
• Retains Sound Quality
• Signal Noise Elimination
• Female RCA Inputs
• Male RCA Outputs

Massive Audio NOISEOFF

Noise Filter with 2-channel Ground Loop Isolator

NOISEOFF big DISCONTINUED
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Massive Audio NOISEOFF

Noise Filter with 2-channel Ground Loop Isolator

• 2-channel ground loop isolator
• Reduces noise in signal RCA path
• Frequency response: 20 Hz to 20,000 Hz
• Audio transformers for 1.3 dB gain

• 2-channel ground loop isolator
• Reduces noise in signal RCA path
• Frequency response: 20 Hz to 20,000 Hz
• Audio transformers for 1.3 dB gain

Cerwin Vega CHGLIRCA

HED Series Ground Loop Isolator (RCA Input and Output)

CHGLIRCA big DISCONTINUED
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Cerwin Vega CHGLIRCA

HED Series Ground Loop Isolator (RCA Input and Output)

• HED Series
• Ground Loop Isolator
• RCA Input and Outputs
• High Quality ABS Plastic

• HED Series
• Ground Loop Isolator
• RCA Input and Outputs
• High Quality ABS Plastic

NVX XGLI35

Ground Loop Isolator for 3.5mm Headphone/Minijack Auxiliary Aux Connections

XGLI35 big DISCONTINUED
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NVX XGLI35

Ground Loop Isolator for 3.5mm Headphone/Minijack Auxiliary Aux Connections

• Conveniently Plugs Between Music Player And Receiver AUX
• Includes Male and Female 3.5mm Connections
• Creates 1.3dB Signal Gain for Improved Performance and Noise Filtration

7

• Conveniently Plugs Between Music Player And Receiver AUX
• Includes Male and Female 3.5mm Connections
• Creates 1.3dB Signal Gain for Improved Performance and Noise Filtration

Belva Digital Noise Filter BSANF

Universal Digital Noise Filter

BSANF big DISCONTINUED
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Belva Digital Noise Filter BSANF

Universal Digital Noise Filter

• Digital Inline Power Noise Filter
• Isolates Ground Loops

• Digital Inline Power Noise Filter
• Isolates Ground Loops

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    FAQ Frequently asked questions in Discontinued Noise Filters

    Car Audio Noise Filter Frequently Asked Questions (FAQ)
    A car audio noise filter, also known as a ground loop isolator or audio noise suppressor, is a device designed to eliminate unwanted electrical noise or interference from the audio signal in your car's audio system. This interference often manifests as a whining, buzzing, or hissing sound that occurs when you're playing music or using your car's audio system. The noise is commonly caused by ground loops, which are voltage differences between various components in the audio system. A noise filter works by breaking the ground loop and isolating the audio signal from unwanted electrical noise, resulting in cleaner and clearer sound.
    If you hear unwanted noise, such as engine whine or alternator whine, coming from your car's speakers, it's a clear sign that you may need a car audio noise filter. This noise is often most noticeable when the engine is running, and the volume is low or silent. Additionally, the noise may increase or decrease with engine RPMs. If you've already ensured that your audio equipment is installed correctly and the noise persists, a noise filter is likely the solution. It's essential to diagnose the noise issue correctly to confirm that a noise filter is the appropriate remedy.
    Installing a car audio noise filter is typically a straightforward process and can be a DIY-friendly task. Most noise filters come with RCA connections or 3.5mm audio jacks, making them compatible with various audio setups. To install the noise filter, identify the source of the noise (e.g., head unit or amplifier), and connect the filter between the problematic component and the speakers or amplifier. This placement will effectively isolate the audio signal from the noise source. Follow the manufacturer's instructions for wiring and mounting the noise filter, and ensure all connections are secure. If you're unsure about the installation process or lack experience with car audio systems, consider seeking assistance from a professional car audio installer.
    When properly installed, a car audio noise filter should not negatively impact the sound quality of your car audio system. On the contrary, it should improve the sound quality by eliminating unwanted noise and interference. The primary purpose of a noise filter is to ensure a clean and clear audio signal by removing electrical noise that can degrade sound performance. However, using low-quality or incorrectly sized noise filters may lead to a compromise in sound quality. Therefore, it's essential to select a high-quality noise filter that matches the specifications of your car audio system. Additionally, ensure that the filter is installed correctly, as improper installation can introduce additional noise or signal degradation.
    While a car audio noise filter is highly effective in eliminating ground loop noise and electrical interference, it may not resolve all audio-related noise issues. Other factors, such as poor grounding, damaged cables, or faulty components, can also contribute to unwanted noise in a car audio system. Before installing a noise filter, it's essential to perform a comprehensive diagnosis of the audio system to identify the specific noise source accurately. In some cases, using high-quality shielded audio cables, ensuring proper grounding, and addressing other potential sources of noise may be necessary in conjunction with a noise filter to achieve the best results. If you encounter persistent noise issues even after installing a noise filter, it's advisable to consult an experienced car audio professional for further inspection and troubleshooting.
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