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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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You are currently viewing discontinued products.

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)

WS 420 SQ big DISCONTINUED
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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

1

• 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

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

AVA-1204 big DISCONTINUED
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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

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

AudioControl EQL (White)

2-Channel Trunk Mount Dual Bandwidth Graphic Equalizer and Pre-Amp with 5-year warranty*!

EQL-WHITE big DISCONTINUED
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AudioControl EQL (White)

2-Channel Trunk Mount Dual Bandwidth Graphic Equalizer and Pre-Amp with 5-year warranty*!

• Trunk Mount Equalizer and Pre-Amp
• PFM Subsonic Filter
• Line and Speaker Level Inputs
7 Band, 1 Octave Equalizer
• Color: Sierra White

3

• Trunk Mount Equalizer and Pre-Amp
• PFM Subsonic Filter
• Line and Speaker Level Inputs
7 Band, 1 Octave Equalizer
• Color: Sierra White

Audiopipe EQ-908X OPEN BOX INCOMPLETE

9-Band Graphic Equalizer

EQ-908X big DISCONTINUED
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Audiopipe EQ-908X OPEN BOX INCOMPLETE

9-Band Graphic Equalizer

Brand new, Missing Power cord
• 9-Band Graphic Equalizer
• Crossover Slope: 12dB
• Cut/Boost: +/-10dB
• Signal-to-Noise Ratio: 94dB

Brand new, Missing Power cord
• 9-Band Graphic Equalizer
• Crossover Slope: 12dB
• Cut/Boost: +/-10dB
• Signal-to-Noise Ratio: 94dB

AudioControl LCQ-1 (Black) Open Box

6-Channel OEM Integration Line Out Converter with Equalizer & AccuBASS, 5-year warranty*!

LCQ-1 BlackBlue big DISCONTINUED
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AudioControl LCQ-1 (Black) Open Box

6-Channel OEM Integration Line Out Converter with Equalizer & AccuBASS, 5-year warranty*!

• 6-Channel Line Output Converter
• 6-Channel Preamp Level Outputs
• 12-Volt turn-on lead output
• Independent Front, Rear, and Sub EQ Controls

1

• 6-Channel Line Output Converter
• 6-Channel Preamp Level Outputs
• 12-Volt turn-on lead output
• Independent Front, Rear, and Sub EQ Controls

Precision Power PPI E.DZ-OPEN BOX

7-Band Dual Zone Graphic Equalizer with Auxiliary Input and Independent Subwoofer Control

E.DZ big DISCONTINUED
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Precision Power PPI E.DZ-OPEN BOX

7-Band Dual Zone Graphic Equalizer with Auxiliary Input and Independent Subwoofer Control

• PrecisionPower 7-Band Dual Zone Graphic Equalizer
• Auxiliary Input
• low-Pass Filter
• Red Backlit Control Knobs
• Fader Control
• Independent Subwoofer Level Control

• PrecisionPower 7-Band Dual Zone Graphic Equalizer
• Auxiliary Input
• low-Pass Filter
• Red Backlit Control Knobs
• Fader Control
• Independent Subwoofer Level Control

Audiobahn AEQ7 Factory R/B

Half-DIN Size 4-Band Parametric Equalizer and Pre-Amp

AEQ7 big DISCONTINUED
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Audiobahn AEQ7 Factory R/B

Half-DIN Size 4-Band Parametric Equalizer and Pre-Amp

Four Band Parametric Equalizer

Four Band Parametric Equalizer

AudioControl DQDX - Black/Blue (Open Box)

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

DQDX-BlackBlue big DISCONTINUED
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AudioControl DQDX - Black/Blue (Open Box)

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

4

• 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

SPL SPQ20 R/B

4-Band Parametric Pre-Amp Equalizer

SPQ20 big DISCONTINUED
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SPL SPQ20 R/B

4-Band Parametric Pre-Amp Equalizer

Parametric Pre-Amp Equalizer • 4-Band Frequency Adjustments • CD and Radio Inputs • Front, Rear, and Subwoofer Outputs • Front CD/Auxiliary switch • Master Volume Control • Gold Plated RCA Contacts

Parametric Pre-Amp Equalizer • 4-Band Frequency Adjustments • CD and Radio Inputs • Front, Rear, and Subwoofer Outputs • Front CD/Auxiliary switch • Master Volume Control • Gold Plated RCA Contacts

Kicker KQ30 (03KQ30) Open Box (Complete)

30-Band Graphic Equalizer w/ 9 Volt Pre-Amp Output

KQ30 big DISCONTINUED
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Kicker KQ30 (03KQ30) Open Box (Complete)

30-Band Graphic Equalizer w/ 9 Volt Pre-Amp Output

• 30-band Graphic EQ and Pre-Amp
• Center Frequencies at 1/3 octave intervals
• Signal-to-Noise Ratio: >95dB
• Input Sensitivity: 500mV - 9 volts
• Output Level: 0 - 9 volts
• Stereo/Mono Operation

5

• 30-band Graphic EQ and Pre-Amp
• Center Frequencies at 1/3 octave intervals
• Signal-to-Noise Ratio: >95dB
• Input Sensitivity: 500mV - 9 volts
• Output Level: 0 - 9 volts
• Stereo/Mono Operation

AudioControl EQL (Gray) - Open Box

2-Channel Trunk Mount Dual Bandwidth Graphic Equalizer and Pre-Amp with 5-year warranty*!

EQL-Gray big DISCONTINUED
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AudioControl EQL (Gray) - Open Box

2-Channel Trunk Mount Dual Bandwidth Graphic Equalizer and Pre-Amp with 5-year warranty*!

• Trunk Mount Equalizer and Pre-Amp
• PFM Subsonic Filter
• Line and Speaker Level Inputs
7 Band, 1 Octave Equalizer
6 Band, 1/2 Octave Bass EQ
• Color: Salmon Gray

• Trunk Mount Equalizer and Pre-Amp
• PFM Subsonic Filter
• Line and Speaker Level Inputs
7 Band, 1 Octave Equalizer
6 Band, 1/2 Octave Bass EQ
• Color: Salmon Gray

Autotek ATEQ7B

7-Band Parametric Equalizer with 9V Line Driver

ATEQ7B big DISCONTINUED
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Autotek ATEQ7B

7-Band Parametric Equalizer with 9V Line Driver

• 7 band-Band Parametric Equalizer
• 3 Sets of preamp outputs (front, rear and subwoofer)
• 9 volts Max preamp outputs
• Subwoofer frequency and level control

• 7 band-Band Parametric Equalizer
• 3 Sets of preamp outputs (front, rear and subwoofer)
• 9 volts Max preamp outputs
• Subwoofer frequency and level control

AudioControl LCQ-1 (Black)

6-Channel EQ Signal Processor with AccuBASS

LCQ-1 BlackBlue big DISCONTINUED
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AudioControl LCQ-1 (Black)

6-Channel EQ Signal Processor with AccuBASS

• 6-Channel Line Output Converter
• 6-Channel Preamp Level Outputs
• 12-Volt turn-on lead output
• Independent Front, Rear, and Sub EQ Controls

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VIP Product Get $28.90 in rewards to spend later

1

• 6-Channel Line Output Converter
• 6-Channel Preamp Level Outputs
• 12-Volt turn-on lead output
• Independent Front, Rear, and Sub EQ Controls

AudioControl EQX - Black (Open Box)

2 Channel Trunk-Mount 13 Band Equalizer with Crossover & 5-year warranty*!

EQX-BlackBlue big DISCONTINUED
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AudioControl EQX - Black (Open Box)

2 Channel Trunk-Mount 13 Band Equalizer with Crossover & 5-year warranty*!

• Trunk Mount Equalizer with Crossover
• Programmable 24 dB/Octave 2-way Linkwitz-Riley Crossover
• Line and Speaker Level Inputs

• Trunk Mount Equalizer with Crossover
• Programmable 24 dB/Octave 2-way Linkwitz-Riley Crossover
• Line and Speaker Level Inputs

Pioneer DEQ-7600 Open Box

(Open Box) 15 Band Digital Equalizer with DSP

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Pioneer DEQ-7600 Open Box

(Open Box) 15 Band Digital Equalizer with DSP

DSP Equalizer • Full-DIN chassis • 15-band digital EQ • spectrum analyzer • 5 preset/3 programmable EQ curves • 4-mode listening position switch • 5 DSP soundfields • selectable low-pass crossover • 3 sets of preamp outputs

DSP Equalizer • Full-DIN chassis • 15-band digital EQ • spectrum analyzer • 5 preset/3 programmable EQ curves • 4-mode listening position switch • 5 DSP soundfields • selectable low-pass crossover • 3 sets of preamp outputs

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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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