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  1. Home
  2. Discontinued Car Audio & Electronics
  3. Discontinued Car Amplifiers
  4. Discontinued Equalizers & Sound Processors
  5. Discontinued Car Equalizers (EQs)

Discontinued Car Equalizers (EQs)

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Type of Equalizer
This determines the way the equalizer processes the signal from the source unit. A parametric equalizer allows to you adjust the center point of the frequency band you are adjusting as well the bandwidth which can be narrowed or widened. A graphic equalizer has fixed frequency bands and bandwidth and only the frequency bands can be adjusted. A digital equalizer uses a software program to tune your system.
A graphic equalizer typically has more adjustable bands and is less expensive, whereas a parametric will have fewer bands but offer a greater level of control and provide more tuning options. Digital equalizers will tune your system with the most detail and precision but require a computer and are typically a little higher in price.
Equalizer Bands
The number of graphic or parametric equalizer bands the receiver has. The better the EQ, the more likely you will be able to "tweak" your sounds to your desire.
Line Driver
A line driver is a small amplifier used to support the strength of the audio signal coming from the source unit.
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Soundstream MP4XO

MP4XO big DISCONTINUED
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Soundstream MP4XO

Four band parametric equalizer • Gold-plated RCA input output connectors • Front / rear fader control • Universal half-Din chassis for easy installation

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Four band parametric equalizer • Gold-plated RCA input output connectors • Front / rear fader control • Universal half-Din chassis for easy installation

JL Audio CL-VOL-ASSY

Replacement Master Volume Control Assembly JL Audio CL441dsp CleanSweep

CL-VOL-ASSY big DISCONTINUED
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JL Audio CL-VOL-ASSY

Replacement Master Volume Control Assembly JL Audio CL441dsp CleanSweep

• Replacement Master Volume Control Assembly for JL Audio CL441dsp CleanSweep
• Includes Multi-Colored LED For Indicating The Selected Source
• Black Knob Is Included

• Replacement Master Volume Control Assembly for JL Audio CL441dsp CleanSweep
• Includes Multi-Colored LED For Indicating The Selected Source
• Black Knob Is Included

NVX - Worth the Envy - Direct to Consumer Car Audio

Precision Power PPI DEQ.8

Digital Sound Processor w/ 31 Band Graphic Equalizer & 9 Band Parametric EQ w/ Time Alignment

DEQ.8 big DISCONTINUED
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Precision Power PPI DEQ.8

Digital Sound Processor w/ 31 Band Graphic Equalizer & 9 Band Parametric EQ w/ Time Alignment

• 31-Band Graphic/Parametric Equalizer with Digital Signal Processing
• 9-Band Parametric Equalizer
• Configures Through a PC or MAC for Real Time Adjustments
• 8-Channel Outputs
• High Level Inputs for Factory Integration
• 24-Bit DAC

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• 31-Band Graphic/Parametric Equalizer with Digital Signal Processing
• 9-Band Parametric Equalizer
• Configures Through a PC or MAC for Real Time Adjustments
• 8-Channel Outputs
• High Level Inputs for Factory Integration
• 24-Bit DAC

AudioControl DQT

Stereo 1/3 Octave Digital Equalizer (Platinum Silver)

DQT-SILVER big DISCONTINUED
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AudioControl DQT

Stereo 1/3 Octave Digital Equalizer (Platinum Silver)

Digital Controlled • Eight User Programmable Memories • Utilizes an Audio Enhanced DSP • Thirty Constant-Q Bands • Two Parametric Filters • Stereo Inputs and OutPuts • LCD Display • Platinum Silver

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Digital Controlled • Eight User Programmable Memories • Utilizes an Audio Enhanced DSP • Thirty Constant-Q Bands • Two Parametric Filters • Stereo Inputs and OutPuts • LCD Display • Platinum Silver

Absolute EQ600

5 Band In-Dash Graphic Equalizer with Line Driver

EQ600 big DISCONTINUED
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Absolute EQ600

5 Band In-Dash Graphic Equalizer with Line Driver

5 Band In-Dash Graphic Equalizer with Line Driver • Equalization Boost/Cut • 105 dB S/N Ratio • Frequency Response: 10-50,000 Hz • half DIN • 7 Volt Line Driver

5 Band In-Dash Graphic Equalizer with Line Driver • Equalization Boost/Cut • 105 dB S/N Ratio • Frequency Response: 10-50,000 Hz • half DIN • 7 Volt Line Driver

Audiobahn AEX250X 20 Band Equalizer/Crossover/Line Driver

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Audiobahn AEX250X 20 Band Equalizer/Crossover/Line Driver

20 Band Equalizer

20 Band Equalizer

AudioControl DQL-8

Eight Channel Line Output Converter with Auxiliary Input and Digital Signal Processing

DQL-8 big DISCONTINUED
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AudioControl DQL-8

Eight Channel Line Output Converter with Auxiliary Input and Digital Signal Processing

8-channel Line Output Converter with Digital Signal Processing • 8 Input and 6 output channel • 8-user Adjustable memory • 24 dB/octave Linkwitz-Riley alignment crossover

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8-channel Line Output Converter with Digital Signal Processing • 8 Input and 6 output channel • 8-user Adjustable memory • 24 dB/octave Linkwitz-Riley alignment crossover

AudioControl DQDX-BLUE Open Box Complete

6 Channel Performance Digital Signal Processor with EQ Crossover and Signal Delay

DQDX-BLUE big DISCONTINUED
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AudioControl DQDX-BLUE Open Box Complete

6 Channel Performance Digital Signal Processor with EQ Crossover and Signal Delay

• Item Condition: Open Box Compete
• 6-Channel LOC Line Driver w/ 14 Band Equalizer
• Selectable Crossover Frequency: 50-500 Hz
• Frequency Response: 10-22,000Hz
• 24 dB/Octave Linkwitz-Riley Crossover

• Item Condition: Open Box Compete
• 6-Channel LOC Line Driver w/ 14 Band Equalizer
• Selectable Crossover Frequency: 50-500 Hz
• Frequency Response: 10-22,000Hz
• 24 dB/Octave Linkwitz-Riley Crossover

RCA RCEQ769

7-Band Parametric Equalizer

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RCA RCEQ769

7-Band Parametric Equalizer

Equalizer/Crossover • 7-band stereo EQ/crossover designed for the mobile environment • High-signal-to-noise ratio to drive your audio system to full power

Equalizer/Crossover • 7-band stereo EQ/crossover designed for the mobile environment • High-signal-to-noise ratio to drive your audio system to full power

Power Acoustik DG-7Q R/B

7 Band Digital Equalizer with Built-in Volt Meter

DG-7Q big DISCONTINUED
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Power Acoustik DG-7Q R/B

7 Band Digital Equalizer with Built-in Volt Meter

7 Band Digital Equalizer with Built-in Volt Meter • 2 Inputs • System battery voltage display • Master volume, fader, and subwoofer level control • Subwoofer output voltage up to 10V

7 Band Digital Equalizer with Built-in Volt Meter • 2 Inputs • System battery voltage display • Master volume, fader, and subwoofer level control • Subwoofer output voltage up to 10V

PreSonus EQ3B

Single Channel, 3-Band Parametric Equalizer

EQ3B big DISCONTINUED
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PreSonus EQ3B

Single Channel, 3-Band Parametric Equalizer

3-Band 1-Channel Parametric Equalizer • Overlapping Frequency Ranges • Quiet Operation • Eliminates Room Rumble • Increases Music Clarity • Compact, Rack-Mount Chassis

3-Band 1-Channel Parametric Equalizer • Overlapping Frequency Ranges • Quiet Operation • Eliminates Room Rumble • Increases Music Clarity • Compact, Rack-Mount Chassis

Boss EQ1208 OPEN BOX COMPLETE

4-Band Graphic Equalizer with Gold Plated RCA Inputs and Outputs

EQ1208 big DISCONTINUED
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Boss EQ1208 OPEN BOX COMPLETE

4-Band Graphic Equalizer with Gold Plated RCA Inputs and Outputs

• 4-Band Graphic Equalizer
• Subwoofer Output
• Dual-Color Selectable Illumination
• Gold-Plated RCA Inputs and Outputs
• Bass Boost (0 - 18 dB)
• Signal to Noise Ratio: 105 dB

• 4-Band Graphic Equalizer
• Subwoofer Output
• Dual-Color Selectable Illumination
• Gold-Plated RCA Inputs and Outputs
• Bass Boost (0 - 18 dB)
• Signal to Noise Ratio: 105 dB

Wet Sounds WS 420 SQ

4-Band Parametric Marine Equalizer w/ 3 Zone Operation & Microphone (WetSounds)

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Wet Sounds WS 420 SQ

4-Band Parametric Marine Equalizer w/ 3 Zone Operation & Microphone (WetSounds)

• 4-Band Parametric Marine Equalizer
• Microphone Turns Your System into a PA
• Frequency Response: 10-40,000 Hz
• Signal-to-Noise Ratio: 80dB

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• 4-Band Parametric Marine Equalizer
• Microphone Turns Your System into a PA
• Frequency Response: 10-40,000 Hz
• Signal-to-Noise Ratio: 80dB

AudioControl DQDX (Black)

6 Channel Performance Digital Signal Processor with EQ, Crossover and Signal Delay plus 5-year warranty*!

DQDX-BLACK big DISCONTINUED
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AudioControl DQDX (Black)

6 Channel Performance Digital Signal Processor with EQ, Crossover and Signal Delay plus 5-year warranty*!

• 6-Channel LOC Line Driver w/ 14 Band Equalizer
• Selectable Crossover Frequency: 50-500 Hz
• Frequency Response: 10-22,000Hz
• 24 dB/Octave Linkwitz-Riley Crossover

2

• 6-Channel LOC Line Driver w/ 14 Band Equalizer
• Selectable Crossover Frequency: 50-500 Hz
• Frequency Response: 10-22,000Hz
• 24 dB/Octave Linkwitz-Riley Crossover

PAC lpa-1.2

2-Channel LOCPRO Series Advanced Line Output Converter with Auto Turn-On

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PAC lpa-1.2

2-Channel LOCPRO Series Advanced Line Output Converter with Auto Turn-On

• Steel housing
• Single stereo gain controls
• Wide range DC offset
• 9.5V Output voltage

• Steel housing
• Single stereo gain controls
• Wide range DC offset
• 9.5V Output voltage

AudioControl The Epicenter - Black (Like New)

Concert Series Digital Bass Reconstruction Processor (Bass Booster Expander) with Remote & 5-year warranty*!

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AudioControl The Epicenter - Black (Like New)

Concert Series Digital Bass Reconstruction Processor (Bass Booster Expander) with Remote & 5-year warranty*!

• Sierra White Digital Bass Reconstruction Processor
• Patented Bass Maximizer™
• 9.5Vrms Pre-amp Max Output!
• Perfect addition to all systems

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• Sierra White Digital Bass Reconstruction Processor
• Patented Bass Maximizer™
• 9.5Vrms Pre-amp Max Output!
• Perfect addition to all systems

PowerBass Xtreme XEQ-5XO

4 Band Parametric Equalizer and Pre-Amp

XEQ-5XO big DISCONTINUED
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PowerBass Xtreme XEQ-5XO

4 Band Parametric Equalizer and Pre-Amp

PowerBass Xtreme 4 Band Parametric Equalizer and Pre-Amp • 10 Volt RMS Output • Master Volume Control • Individual Gain Controls • Subwoofer Level Control • Red/Green Selectable Night Illumination • Fader Control

PowerBass Xtreme 4 Band Parametric Equalizer and Pre-Amp • 10 Volt RMS Output • Master Volume Control • Individual Gain Controls • Subwoofer Level Control • Red/Green Selectable Night Illumination • Fader Control

Boss AVA-1204 7-Band Equalizer-OPEN BOX

7-Band Preamp Graphic Equalizer with LED Power Meter

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Boss AVA-1204 7-Band Equalizer-OPEN BOX

7-Band Preamp Graphic Equalizer with LED Power Meter

• 7-Band Preamp Graphic Equalizer
• LED Power Meter
• Subwoofer Output

• 7-Band Preamp Graphic Equalizer
• LED Power Meter
• Subwoofer Output

Cache COE8EQ

8 Channel Line Output Converter and 13 band Equaizer

COE8EQ big DISCONTINUED
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Cache COE8EQ

8 Channel Line Output Converter and 13 band Equaizer

8 Channel Line Output Converter and 13 band Equaizer • Auxiliary Input • 8V RMS Outputs • Summing Capability For All Inputs To All Outputs • Remote Level Control

8 Channel Line Output Converter and 13 band Equaizer • Auxiliary Input • 8V RMS Outputs • Summing Capability For All Inputs To All Outputs • Remote Level Control

AudioControl DQDX (Blue)

6 Channel Performance Digital Signal Processor with EQ, Crossover and Signal Delay plus 5-year warranty*!

DQDX-BLUE big DISCONTINUED
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AudioControl DQDX (Blue)

6 Channel Performance Digital Signal Processor with EQ, Crossover and Signal Delay plus 5-year warranty*!

• 6-Channel LOC Line Driver w/ 14 Band Equalizer
• Selectable Crossover Frequency: 50-500 Hz
• Frequency Response: 10-22,000Hz
• 24 dB/Octave Linkwitz-Riley Crossover

• 6-Channel LOC Line Driver w/ 14 Band Equalizer
• Selectable Crossover Frequency: 50-500 Hz
• Frequency Response: 10-22,000Hz
• 24 dB/Octave Linkwitz-Riley Crossover

NVX - Worth the Envy - Direct to Consumer Car Audio
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    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.
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