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Equalizers & Sound Processors for your 1981 LeSabre

For those who want the most out their car audio system, a quality sound processor is a must. After some slight adjustments, your system will sound like it has been professionally tuned and optimized. Tune your system to perfection with these digital sound processor DSPs, equalizers, crossovers, and get more bass with a bass reconstruction processor like the Epicenter. Getting a high quality LOC is also a must for those looking to integrate and add bass while retaining their factory stereo. Learn more about digital sound processors and to find out which type would be best for your car audio system.

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Metra BC-DSPX-HD2

DSP Interface with Pre-Wired Harness for

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DSP Interface with Pre-Wired Harness for

• Digital Signal Processor (DSP) Interface and Harness
• Designed to integrate aftermarket amplifier with OEM systems
• All programming done using the Axxess DSP XL app
• 31-band graphic equalizer
• 5-band parametric equalizer per channel
• Designed for

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• Digital Signal Processor (DSP) Interface and Harness
• Designed to integrate aftermarket amplifier with OEM systems
• All programming done using the Axxess DSP XL app
• 31-band graphic equalizer
• 5-band parametric equalizer per channel
• Designed for

Axxess AXSUB-CH5

Active 2-Channel Line Output Converter and Subwoofer Data Interface for select 2014-2026 vehicles from Ram, Jeep, Dodge

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Active 2-Channel Line Output Converter and Subwoofer Data Interface for select 2014-2026 vehicles from Ram, Jeep, Dodge

• Line Output Converter and Subwoofer Data Interface
• Integrates with amplified or non-amplified factory OEM systems
• Allows for the addition of an aftermarket subwoofer
• Compatible with select 2014-2026 vehicles from Ram, Jeep, Dodge

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• Line Output Converter and Subwoofer Data Interface
• Integrates with amplified or non-amplified factory OEM systems
• Allows for the addition of an aftermarket subwoofer
• Compatible with select 2014-2026 vehicles from Ram, Jeep, Dodge

Axxess AXDSPX-GL44

Digital Signal Processor Interface with Pre-Wired Harness for select 2008-2017 vehicles from GMC, Chevrolet, Cadillac

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Digital Signal Processor Interface with Pre-Wired Harness for select 2008-2017 vehicles from GMC, Chevrolet, Cadillac

• DSP interface with pre-wired harness for select 2008-2017 vehicles from GMC, Chevrolet, Cadillac
• Designed for amplified and non-amplified systems
• Can be used with factory and aftermarket radios
• Package includes AXDSP-X interface, vehicle-specific T-harness, bass knob
• Must be installed at the factory stereo location
• Features updatable Micro "B" USB function

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• DSP interface with pre-wired harness for select 2008-2017 vehicles from GMC, Chevrolet, Cadillac
• Designed for amplified and non-amplified systems
• Can be used with factory and aftermarket radios
• Package includes AXDSP-X interface, vehicle-specific T-harness, bass knob
• Must be installed at the factory stereo location
• Features updatable Micro "B" USB function

Kicker KISLOC2 (46KISLOC2)

K Series 2-Channel Line Output Converter With 12-Volt Turn-on

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K Series 2-Channel Line Output Converter With 12-Volt Turn-on

• 2-ch speaker-to-RCA converter, LOC
• Compatible with OEM radios that have short circuit protection
• Take as much as 55 watts of input and deliver up to 8 volts of output

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• 2-ch speaker-to-RCA converter, LOC
• Compatible with OEM radios that have short circuit protection
• Take as much as 55 watts of input and deliver up to 8 volts of output

Hifonics HFEQ-2

4-Band 1/2-Din Equalizer with Active Crossover

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4-Band 1/2-Din Equalizer with Active Crossover

• 4 band-Band Equalizer
• 3 sets of preamp outputs (front, rear and subwoofer)
• 9 volts max preamp outputs
• Subwoofer frequency and level control
• Gold-plated RCA level inputs

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• 4 band-Band Equalizer
• 3 sets of preamp outputs (front, rear and subwoofer)
• 9 volts max preamp outputs
• Subwoofer frequency and level control
• Gold-plated RCA level inputs

Axxess AXLOC-HN2

2-Channel 110W Line Output Converter with Gain Controller for select 2009-2025 vehicles from Honda, Acura with Non-Amplified Systems

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2-Channel 110W Line Output Converter with Gain Controller for select 2009-2025 vehicles from Honda, Acura with Non-Amplified Systems

• Active 2-Channel Line Output Converter
• Designed to provide 2-channels of low-level audio
• Includes gain level controller to adjust the overall output
• Compatible with select 2009-2025 vehicles from Honda, Acura with non-amplified systems

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• Active 2-Channel Line Output Converter
• Designed to provide 2-channels of low-level audio
• Includes gain level controller to adjust the overall output
• Compatible with select 2009-2025 vehicles from Honda, Acura with non-amplified systems

NVX XLCA2X

2-Channel Line Output Converter Digital Bass Enhancer with xBOOST, Impedance Matching, and Remote Level Control

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2-Channel Line Output Converter Digital Bass Enhancer with xBOOST, Impedance Matching, and Remote Level Control

• 2-Channel Speaker Level Inputs
• Adjustable xBOOST corrects for bass roll-off
• Handles up to 30V (225 watts RMS)
• Provides up to 9.5 Volts of output
• Auto turn-on via DC offset or Audio detection 
• Load selection switch (20, 60, or 20K ohm)
• Wired remote bass level control included
• LED Clip indicator

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• 2-Channel Speaker Level Inputs
• Adjustable xBOOST corrects for bass roll-off
• Handles up to 30V (225 watts RMS)
• Provides up to 9.5 Volts of output
• Auto turn-on via DC offset or Audio detection 
• Load selection switch (20, 60, or 20K ohm)
• Wired remote bass level control included
• LED Clip indicator

PRV Audio DSP 2.8X TEAM

8-Channel Digital Sound Processor

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8-Channel Digital Sound Processor

• 8-Channel Digital Signal Processor
• Designed to integrate with aftermarket or factory OEM systems
• Integrated LCD display and intuitive interface
• Includes 2 audio inputs and 8 independent outputs
• 15-graphic equalizer with separate parametric equalizers

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• 8-Channel Digital Signal Processor
• Designed to integrate with aftermarket or factory OEM systems
• Integrated LCD display and intuitive interface
• Includes 2 audio inputs and 8 independent outputs
• 15-graphic equalizer with separate parametric equalizers

NVX XFLOC4

4-Channel 160W Adjustable Line Output Converter with Remote Turn On

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4-Channel 160W Adjustable Line Output Converter with Remote Turn On

• 3:1 Step Down With Adjustable Output
• DC Amplifier Turn On Trigger
• 160w Maximum Input Total (40w Per Channel)

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• 3:1 Step Down With Adjustable Output
• DC Amplifier Turn On Trigger
• 160w Maximum Input Total (40w Per Channel)

PAC SNI-35

50W Peak Variable LOC

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50W Peak Variable LOC

• Adjustable Line Output Converter
• Utilize Audio Transformer for Noise Isolation
• Compatible with 2 - 40 watts RMS of Radio Output

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• Adjustable Line Output Converter
• Utilize Audio Transformer for Noise Isolation
• Compatible with 2 - 40 watts RMS of Radio Output

Cerwin-Vega CVM3

4-Channel Bass Maximizer Processor Amplifier

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4-Channel Bass Maximizer Processor Amplifier

• Digital Bass Reconstruction Processor
• Advanced line driver circuitry
• Dash-mount remote control
• Speaker level inputs

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• Digital Bass Reconstruction Processor
• Advanced line driver circuitry
• Dash-mount remote control
• Speaker level inputs

Axxess AXDSPX-FD3

Install a DSP and New Amplifier to Factory System in select 2020-2025 vehicles from Ford

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Install a DSP and New Amplifier to Factory System in select 2020-2025 vehicles from Ford

• Plug and Play T-harness for faster installation
• For select 2020-2025 vehicles from Ford
• Designed for non-amplified systems
• Can be used with factory and aftermarket radios
• Selectable 31-band graphic EQ or 5-band parametric EQ
• Settings adjusted via Bluetooth in a smart device
• Selectable high pass, low pass, or bandpass filters

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• Plug and Play T-harness for faster installation
• For select 2020-2025 vehicles from Ford
• Designed for non-amplified systems
• Can be used with factory and aftermarket radios
• Selectable 31-band graphic EQ or 5-band parametric EQ
• Settings adjusted via Bluetooth in a smart device
• Selectable high pass, low pass, or bandpass filters

Steve Meade Designs IM-SG

Impedance Meter / Signal Generator

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Impedance Meter / Signal Generator

• Impedance Meter/Signal Generator
• Obtains Driver's T/S Parameters
• Find Tuning Frequency of Passive Radiator
• Locate Rattles in Vehicle

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• Impedance Meter/Signal Generator
• Obtains Driver's T/S Parameters
• Find Tuning Frequency of Passive Radiator
• Locate Rattles in Vehicle

Axxess AXLOC-HN3

2-Channel 110W Line Output Converter with Gain Controller for select 2016-2025 vehicles from Honda with Non-Amplified Systems

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2-Channel 110W Line Output Converter with Gain Controller for select 2016-2025 vehicles from Honda with Non-Amplified Systems

• Active 2-Channel Line Output Converter
• Designed to provide 2-channels of low-level audio
• Includes gain level controller to adjust the overall output
• Compatible with select 2016-2025 vehicles from Honda with non-amplified systems

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• Active 2-Channel Line Output Converter
• Designed to provide 2-channels of low-level audio
• Includes gain level controller to adjust the overall output
• Compatible with select 2016-2025 vehicles from Honda with non-amplified systems

Axxess LOC-FDH3 Active LOC T-Harness

Add an Amplifier and Subwoofer to Factory Stereo in select 2018-2025 vehicles from Ford

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Add an Amplifier and Subwoofer to Factory Stereo in select 2018-2025 vehicles from Ford

• Direct connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

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• Direct connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

Axxess AXLOC-FD1

2-Channel 110W Line Output Converter with Gain Controller for select 2003-2016 vehicles from Ford, Mercury, Lincoln with Non-Amplified Systems

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2-Channel 110W Line Output Converter with Gain Controller for select 2003-2016 vehicles from Ford, Mercury, Lincoln with Non-Amplified Systems

• Active 2-Channel Line Output Converter
• Designed to provide 2-channels of low-level audio
• Includes gain level controller to adjust the overall output
• Compatible with select 2003-2016 vehicles from Ford, Mercury, Lincoln with non-amplified systems

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• Active 2-Channel Line Output Converter
• Designed to provide 2-channels of low-level audio
• Includes gain level controller to adjust the overall output
• Compatible with select 2003-2016 vehicles from Ford, Mercury, Lincoln with non-amplified systems

NVX XFLOC2

2-Channel 80W Adjustable Line Output Converter with Remote Turn On

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2-Channel 80W Adjustable Line Output Converter with Remote Turn On

• 6:1 Step Down With Adjustable Output
• DC Amplifier Turn On Trigger
• 80w Maximum Input total (40w per channel)

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• 6:1 Step Down With Adjustable Output
• DC Amplifier Turn On Trigger
• 80w Maximum Input total (40w per channel)

Axxess AXLOC-GMLN1

2-Channel 110W Line Output Converter with Gain Controller for select 2006-2025 vehicles from Chevrolet, GMC, Cadillac with Non-Amplified Systems

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2-Channel 110W Line Output Converter with Gain Controller for select 2006-2025 vehicles from Chevrolet, GMC, Cadillac with Non-Amplified Systems

• Active 2-Channel Line Output Converter
• Designed to provide 2-channels of low-level audio
• Includes gain level controller to adjust the overall output
• Compatible with select 2006-2025 vehicles from Chevrolet, GMC, Cadillac with non-amplified systems

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• Active 2-Channel Line Output Converter
• Designed to provide 2-channels of low-level audio
• Includes gain level controller to adjust the overall output
• Compatible with select 2006-2025 vehicles from Chevrolet, GMC, Cadillac with non-amplified systems

AudioControl DM-RTA BASE KIT

Hard Case and Accessory Base Kit for AudioControl DM-RTA

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Hard Case and Accessory Base Kit for AudioControl DM-RTA

• Hard case and accessory kit for AudioControl DM-RTA
• Laser-cut foam interior
• Includes all necessary hardware and accessories

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• Hard case and accessory kit for AudioControl DM-RTA
• Laser-cut foam interior
• Includes all necessary hardware and accessories

AudioControl LC5i PRO

5-Channel 400W Line Out Converter with AccuBASS and ACR-1 Remote

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5-Channel 400W Line Out Converter with AccuBASS and ACR-1 Remote

• 5-Channel Line Out Converter
• AccuBASS processing for correction of bass roll-off
AudioControl ACR-1 REMOTE wired bass remote knob included

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• 5-Channel Line Out Converter
• AccuBASS processing for correction of bass roll-off
AudioControl ACR-1 REMOTE wired bass remote knob included

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    FAQ Frequently asked questions in Equalizers & Sound Processors


    An amplifier equalizer, commonly known as an EQ, is a device that allows you to adjust the audio frequencies in your car audio system. It enhances the overall sound quality by giving you precise control over the bass, midrange, and treble frequencies. By using an EQ, you can customize the sound to your preferences and compensate for any acoustic deficiencies in your car's interior. Whether you prefer deep bass, crisp highs, or a balanced sound, an amplifier equalizer lets you fine-tune the audio output to suit your taste. It optimizes your listening experience and can significantly improve the clarity, detail, and depth of your music.
    Most amplifier equalizers are designed to be compatible with a wide range of car audio systems. They can be used with factory head units, aftermarket stereos, and various amplifier configurations. Some EQs have preamp outputs, which make them compatible with amplifiers, while others can be directly connected to your car's speaker wires. However, it's essential to check the specifications and compatibility of the EQ with your specific car audio system. Some high-end equalizers may require additional connections or components, such as line drivers or crossover networks, to function optimally. To ensure a seamless integration and the best performance, consult the user manual or reach out to Sonic Electronix's customer support for expert advice.
    Digital sound processors (DSPs) are advanced audio devices that offer more sophisticated signal processing capabilities compared to traditional equalizers. While both EQs and DSPs allow you to adjust the audio frequencies, DSPs provide additional features like time alignment, crossover settings, and parametric equalization. Time alignment enables you to delay certain speakers to ensure the sound reaches your ears simultaneously, enhancing the soundstage and imaging. Crossover settings allow you to set different frequency ranges for various speakers, preventing audio overlap and distortion. Parametric equalization in DSPs provides greater control over specific frequency bands, allowing you to make more precise adjustments. If you desire a more comprehensive audio tuning experience with enhanced control over your car audio system, a digital sound processor may be the ideal choice.
    The installation process for amplifier equalizers and sound processors can vary based on the specific model and your car's audio system. Most EQs and DSPs come with detailed installation instructions that guide you through the process. Generally, you'll need to connect the equalizer or processor to your car stereo or amplifier using RCA cables or speaker wire connections. Some advanced DSPs may require additional connections to your car's battery and other components. If you are unsure or uncomfortable with the installation process, it's best to seek professional assistance from a car audio specialist or technician. Improper installation can lead to performance issues or damage to your car audio components. Sonic Electronix's trained staff can also provide guidance on the installation process and help you choose an EQ or DSP that suits your specific setup.
    While an amplifier equalizer can help fine-tune your car audio system's sound, it is not specifically designed to eliminate noise or distortion caused by faulty components or electrical issues. Noise and distortion may result from various factors such as poor grounding, interference, or damaged speakers. If you're experiencing audio problems in your car audio system, it's crucial to identify the root cause. Start by checking all connections, ensuring they are secure and free of corrosion. If you suspect electrical interference, consider adding noise filters or isolators. Damaged speakers or amplifiers may require professional diagnostics and repairs. An amplifier equalizer can be a valuable tool to optimize your sound quality, but it's essential to address any underlying issues to achieve the best audio performance. If you're unsure about the cause of the noise or distortion, consult Sonic Electronix's customer support for troubleshooting advice and recommendations.

    All About

    Equalizers & Sound Processors
    Information about Digital Sound Processors:

    Most original factory stereos use preset equalization curves that are designed to get the most out of your car's factory speakers. When you upgrade to aftermarket speakers, your OEM stereo equalizer preset curves do not adjust, resulting in under performance from your aftermarket speakers. Processors reshape the output of your factory stereo preset equalization curves to ensure you get optimal performance out of your aftermarket amplifiers and speakers.

    A parametric sound equalizer helps you tune your system to the perfect balance. These audio equalizers will also help eliminate infrasonic distortions for a crisper and clearer audio output. Adding a sound equalizer to your car will optimize your system's performance.

    Electronic crossovers divide your music into high, low and midrange frequency ranges. Some of the units we carry are combinations of both stereo crossovers and stereo equalizers. Call us today if you need help choosing the right combo for your setup and budget.

    Bass reconstructors, or bass enhancers, improve low frequency reproduction in a car audio system with at least one subwoofer. These bass expander products will help your subs produce accurate bass thumps.

    If you're searching for top-notch Amp Equalizers & Sound Processors that will take your car audio experience to the next level, you've come to the right place. Our extensive collection features only the most reputable brands and models, ensuring that you can find the perfect Amp Equalizer or Sound Processor to enhance the audio performance in your vehicle.

    Amp Equalizers & Sound Processors play a crucial role in optimizing your car audio system and delivering an exceptional listening experience. An Amp Equalizer allows you to fine-tune the frequency response of your audio, giving you precise control over bass, midrange, and treble levels. By adjusting these frequencies, you can tailor the sound to your preferences and achieve a well-balanced and immersive listening experience.

    On the other hand, Sound Processors are designed to enhance and clean up your audio signal. They can correct audio imperfections and distortions that may occur during the recording or transmission process, resulting in crystal-clear and detailed sound reproduction. Sound Processors can also be used to eliminate background noise, reduce static, and enhance the overall clarity of your audio.

    Aside from their sound-enhancing capabilities, Amp Equalizers & Sound Processors can also help optimize the performance of your car's audio system. They ensure that the power from your amplifier is distributed efficiently to your speakers, minimizing the risk of distortion and damage to your speakers. With Amp Equalizers & Sound Processors, you can achieve optimal audio quality and safeguard the longevity of your audio components.

    At Sonic Electronix, we are dedicated to helping you find the best Amp Equalizers & Sound Processors for your specific car audio needs. Our team of audio experts is available to provide personalized assistance throughout your shopping journey. If you have any questions or need guidance in selecting the perfect Amp Equalizer or Sound Processor, don't hesitate to contact us at 1-502-200-8010. Our knowledgeable staff is eager to provide the information you need and assist you in making an informed decision that will elevate your car audio experience.

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.