Garage
Shop

Discontinued Car Equalizers (EQs)

Loading...
Filters

Shop the Category

filter-icon Filters & Sort
You are currently viewing discontinued products.

AudioControl LC6i (Black) Open Box

6 Channel Line Out Converter with Internal Summing & 5-year warranty*!

Go to item page Right Arrow Icon of Right Arrow

6 Channel Line Out Converter with Internal Summing & 5-year warranty*!

• Six Speaker Level Inputs – Can Accept 400 Watt Signals!
• GTO™ Signal-Sensing Input
• Internal Channel Summing
• Line Output Converter

• Six Speaker Level Inputs – Can Accept 400 Watt Signals!
• GTO™ Signal-Sensing Input
• Internal Channel Summing
• Line Output Converter

Lowest price in 30 days

AudioControl LC8i - Black (Open Box)

8 Channel Line Output Converter with Auxiliary Input, 5-year warranty*!

Go to item page Right Arrow Icon of Right Arrow

8 Channel Line Output Converter with Auxiliary Input, 5-year warranty*!

• Eight Speaker Level Inputs – Can Accept 400 Watt Signals!
• RCA Auxiliary Input for external device integration
• GTO™ Signal-Sensing Input
• Internal Channel Summing
• Line Output Converter

• Eight Speaker Level Inputs – Can Accept 400 Watt Signals!
• RCA Auxiliary Input for external device integration
• GTO™ Signal-Sensing Input
• Internal Channel Summing
• Line Output Converter

AudioControl LC6i (White) OPEN BOX COMPLETE

6 Channel Line Out Converter with Internal Summing & 5-year warranty*!

Go to item page Right Arrow Icon of Right Arrow

6 Channel Line Out Converter with Internal Summing & 5-year warranty*!

Item has been installed and used
• Six Speaker Level Inputs – Can Accept 400 Watt Signals!
• GTO™ Signal-Sensing Input
• Internal Channel Summing
• Line Output Converter

Item has been installed and used
• Six Speaker Level Inputs – Can Accept 400 Watt Signals!
• GTO™ Signal-Sensing Input
• Internal Channel Summing
• Line Output Converter

AudioControl LC8i (Gray) R/B

8 Channel Line Output Converter

Go to item page Right Arrow Icon of Right Arrow

8 Channel Line Output Converter

(COLOR: SALMON GRAY) 8 Input and Output Channels • GTO - Signal Sensing Inputs • Line Output Converter

(COLOR: SALMON GRAY) 8 Input and Output Channels • GTO - Signal Sensing Inputs • Line Output Converter

AudioControl LC7 (White)

6-Channel Line Out Converter (LOC) with iPod and Auxiliary Input

Go to item page Right Arrow Icon of Right Arrow

6-Channel Line Out Converter (LOC) with iPod and Auxiliary Input

Six Channel Line Output Converter With Auxiliary Input • Stereo Auxiliary Input To Add An Ipod Or Satellite Radio • Remote Knob • Switch Between Factory Stereo And Auxiliary Source

Six Channel Line Output Converter With Auxiliary Input • Stereo Auxiliary Input To Add An Ipod Or Satellite Radio • Remote Knob • Switch Between Factory Stereo And Auxiliary Source

Kicker 10ZXSUM8 - Open Box, Very Good Condition (Used)

Line Out Converter Provides Complete Integration of Aftermarket Speakers into a Vehicle OEM System

Go to item page Right Arrow Icon of Right Arrow

Line Out Converter Provides Complete Integration of Aftermarket Speakers into a Vehicle OEM System


• Line Out Converter For OEM Integration
• Sums and Balances Signals From the Factory Stereo
• Produces a Full-Bandwidth, Line-Level Output Signal
• Built-in Auxiliary Input


• Line Out Converter For OEM Integration
• Sums and Balances Signals From the Factory Stereo
• Produces a Full-Bandwidth, Line-Level Output Signal
• Built-in Auxiliary Input

Soundstream iCQ4 OPEN BOX COMPLETE

4 Channel OEM Integration Module (Line Output Converter)

Go to item page Right Arrow Icon of Right Arrow

4 Channel OEM Integration Module (Line Output Converter)

Scratched • Item Condition: Open Box Complete
• 4 Channel OEM Integration Module
• 4 Input and Output Channels
• Includes Remote Gain Control
• Low Noise Floor Line Driver

Scratched • Item Condition: Open Box Complete
• 4 Channel OEM Integration Module
• 4 Input and Output Channels
• Includes Remote Gain Control
• Low Noise Floor Line Driver

AudioControl LC6i (WHITE LC6) R/B

NEW LC6i VERSION! - 6 Channel Line Output Converter with Internal Summing

Go to item page Right Arrow Icon of Right Arrow

NEW LC6i VERSION! - 6 Channel Line Output Converter with Internal Summing

(COLOR: SIERRA WHITE) Six Input and Output Channels • AutoMode Inputs • Signal Sensing Inputs • Line Output Converter

(COLOR: SIERRA WHITE) Six Input and Output Channels • AutoMode Inputs • Signal Sensing Inputs • Line Output Converter

AudioControl LC7 (White) R/B

(Factory Refurbished) 6-Channel Line Out Converter (LOC) with iPod/Aux Input

Go to item page Right Arrow Icon of Right Arrow

(Factory Refurbished) 6-Channel Line Out Converter (LOC) with iPod/Aux Input

Six channel line output converter with auxiliary input • Stereo auxiliary input to add an iPod or satellite radio • Remote knob switches between the factory stereo and auxiliary source

Six channel line output converter with auxiliary input • Stereo auxiliary input to add an iPod or satellite radio • Remote knob switches between the factory stereo and auxiliary source

AudioControl LC2i-OPEN BOX

2 Channel Line-Output Converter with AccuBASS

Go to item page Right Arrow Icon of Right Arrow

2 Channel Line-Output Converter with AccuBASS

• Two Channels of Active Speaker Level Inputs
• AccuBASS Processing
• 9.5 Volt Pre-Amp Outs
• GTO - Signal Sensing Inputs

• Two Channels of Active Speaker Level Inputs
• AccuBASS Processing
• 9.5 Volt Pre-Amp Outs
• GTO - Signal Sensing Inputs

AudioControl LC2i OPEN BOX COMPLETE

2 Channel Line-Output Converter with AccuBASS & 5-year warranty*!

Go to item page Right Arrow Icon of Right Arrow

2 Channel Line-Output Converter with AccuBASS & 5-year warranty*!

• Two Channels of Active Speaker Level Inputs
• AccuBASS Processing
• 9.5 Volt Pre-Amp Outs
• GTO - Signal Sensing Inputs

• Two Channels of Active Speaker Level Inputs
• AccuBASS Processing
• 9.5 Volt Pre-Amp Outs
• GTO - Signal Sensing Inputs

AudioControl LC7i-GRAY- FACTORY REFURBISHED

Six Channel Line Output Converter with AccuBASS

Go to item page Right Arrow Icon of Right Arrow

Six Channel Line Output Converter with AccuBASS

• Six Channel Line Output Converter with AccuBASS
• Six Channels Of Active Speaker Level Inputs – Accepts Up To 400 Watts Per Channel
• AccuBASS Circuitry
• GTO Circuit – Powers Up The Lc7i When It Detects Signal On The Speaker Level Input

• Six Channel Line Output Converter with AccuBASS
• Six Channels Of Active Speaker Level Inputs – Accepts Up To 400 Watts Per Channel
• AccuBASS Circuitry
• GTO Circuit – Powers Up The Lc7i When It Detects Signal On The Speaker Level Input

AudioControl LC7i-WHITE R/B

Six Channel Line Output Converter with AccuBASS

Go to item page Right Arrow Icon of Right Arrow

Six Channel Line Output Converter with AccuBASS

Six Channel Line Output Converter with AccuBASS • Six Channels Of Active Speaker Level Inputs – Accepts Up To 400 Watts Per Channel • AccuBASS Circuitry • GTO Circuit – Powers Up The Lc7i When It Detects Signal On The Speaker Level Input

Six Channel Line Output Converter with AccuBASS • Six Channels Of Active Speaker Level Inputs – Accepts Up To 400 Watts Per Channel • AccuBASS Circuitry • GTO Circuit – Powers Up The Lc7i When It Detects Signal On The Speaker Level Input

AudioControl LC8i (White) R/B

8 Channel Line Output Converter

Go to item page Right Arrow Icon of Right Arrow

8 Channel Line Output Converter

• (COLOR: SIERRA WHITE) 8 Input and Output Channels
• GTO - Signal Sensing Inputs
• Line Output Converter

• (COLOR: SIERRA WHITE) 8 Input and Output Channels
• GTO - Signal Sensing Inputs
• Line Output Converter

Kicker ZXSUM8 (10ZXSUM8) Open Box

Line Out Converter Provides Complete Integration of Aftermarket Speakers into a Vehicle OEM System

Go to item page Right Arrow Icon of Right Arrow

Line Out Converter Provides Complete Integration of Aftermarket Speakers into a Vehicle OEM System

• Line Out Converter For OEM Integration
• Sums and Balances Signals From the Factory Stereo
• Produces a Full-Bandwidth, Line-Level Output Signal
• Built-in Auxiliary Input

• Line Out Converter For OEM Integration
• Sums and Balances Signals From the Factory Stereo
• Produces a Full-Bandwidth, Line-Level Output Signal
• Built-in Auxiliary Input

AudioControl LC7i

Six Channel Line Out Converter with AccuBASS & 5-year warranty*!

Go to item page Right Arrow Icon of Right Arrow

Six Channel Line Out Converter with AccuBASS & 5-year warranty*!

• Six Channel Line Output Converter with AccuBASS
• Six Channels Of Active Speaker Level Inputs – Accepts Up To 400 Watts Per Channel
• AccuBASS Circuitry
• GTO Circuit – Powers Up The Lc7i When It Detects Signal On The Speaker Level Input

• Six Channel Line Output Converter with AccuBASS
• Six Channels Of Active Speaker Level Inputs – Accepts Up To 400 Watts Per Channel
• AccuBASS Circuitry
• GTO Circuit – Powers Up The Lc7i When It Detects Signal On The Speaker Level Input

PAC lpa-2.4

4-Channel LOCPRO Advanced Active Line Output Converter With Auto Turn-on

Go to item page Right Arrow Icon of Right Arrow

4-Channel LOCPRO Advanced Active Line Output Converter With Auto Turn-on

• Steel housing
• Dual variable gain controls
• Clip indicator
• 9.5V Output voltage
• Removable quick-connect with screw-type terminal

• Steel housing
• Dual variable gain controls
• Clip indicator
• 9.5V Output voltage
• Removable quick-connect with screw-type terminal

Items per page: 20 40 60

    Clear all

    FAQ Frequently asked questions in Discontinued Car Equalizers (EQs)


    Car Equalizers (EQs) Frequently Asked Questions (FAQ)
    A car equalizer, often referred to as an EQ, is an audio device designed to adjust and control the balance of frequencies in your car's audio system. It allows you to fine-tune the bass, midrange, and treble frequencies to achieve a desired sound profile. EQs are used to correct acoustic deficiencies in a vehicle's interior, tailor the audio output to personal preferences, and optimize the overall listening experience.
    A car equalizer works by adjusting the amplitude or level of specific frequency bands in the audio signal. It typically features sliders or knobs for different frequency ranges, such as bass, midrange, and treble. By manipulating these controls, you can boost or cut specific frequencies to enhance or diminish their presence in the audio output. This allows you to create a balanced soundstage and compensate for factors like speaker placement and vehicle acoustics.
    Yes, you can install a car equalizer in your existing car audio system. EQs can be integrated between the head unit and the amplifier or directly into the signal path, depending on the EQ model. Some modern car head units also come with built-in equalizer functions. When installing an external EQ, it's essential to ensure proper wiring and integration to achieve the desired audio adjustments. Professional installation may be recommended for complex setups.
    While some technical understanding of audio frequencies can be helpful, many car equalizers are designed with user-friendly interfaces, such as sliders or rotary knobs, that make adjustments intuitive. Basic knowledge of how different frequencies affect the audio can assist in achieving optimal results. Some advanced EQs also offer presets or automatic tuning features that can simplify the tuning process. However, for precision tuning and a customized sound, taking the time to experiment with different settings and listening to the changes is advisable.
    Yes, a car equalizer can significantly enhance audio quality in your car by allowing you to tailor the sound output to your preferences and the acoustics of your vehicle. It can address frequency imbalances, correct deficiencies caused by speaker placement, and compensate for road noise. With proper adjustments, an EQ can create a more immersive and enjoyable listening experience, making your favorite music sound clearer, more dynamic, and well-balanced.
    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    Save up to 10 different vehicles in your garage
    Vehicle
    Store
    Delete

    1985 Ford LTD Crown

    2001 BMW 750iL

    1995 Suzuki Esteem

    2017 Dodge Durango

    2000 Lexus SC400

    1985 Ford Thunderbird

    1999 Dodge Stratus

    2015 Nissan Juke

    1997 GMC C3500

    2011 Audi A4 Quattro

    Add vehicle Clear all vehicles
    Where to find vehicle info
    Are you sure you want to clear your garage?
    This action cannot be undone. Confirm
    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue
    Loading...
    Identify your vehicle and submodel details
    • Owner's manual
    • Vehicle's insurance card
    • Vehicle registration
    • Vehicle produced after 2005: Inside driver's side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon

    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.