Tune your system to perfection with these crossovers, equalizers, and bass drivers. Search this category and improve the sound quality of your sound system.

Sound Processors

Sound Processors Q & A

For those who want the most out their car audio system, a quality sound processor is a must. After some slight adjustments, your systems will sound like it has been professionally tuned and optimized. Tune your system to perfection with these crossovers, equalizers, and bass drivers. Click here to learn more about digital sound processors and to find out which type would be best for your car audio system.
Equalizers
Crossovers
Bass Restoration & Expanders
Line Drivers
Factory Radio Sound Processors
Other Sound Processors
Digital Sound Processors
In-Dash Sound Processors

Top Sellers in Sound Processors

In-Dash Bass Maximizer and Restoration Processor (The Epicenter In-Dash) with 5-year warranty*!

• Digital Bass Reconstruction Processor
• 160dB Mircophone
• Switchable Backlight Illumination Color(Blue or Red)
• ParaBASS Equalization
• SPL Display

$168.93

IN STOCK

2 Channel Line Out 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

Add the Remote Subwoofer Control and Save 20%

$79.99

IN STOCK

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

$119.94

IN STOCK

Only 3 Left!

2-way / 3-way Active Crossover with Remote Bass Control

• 2-Way/3-Way Electronic Crossover
• Bass boost (0-12dB @ 45Hz)
• Quasi-Parametric EQ
• 180-Degree Phase-Shift Switch
• Front/Rear Channel Frequency
• Front and Rear Adjustments
• RCA Pre-Amp Output

Add to Cart for Low Price

(You can remove it later)

IN STOCK

  • 4.3
3 reviews

2 Channel Line Driver/Line Output Converter

• 2 Channel Line Output Converter
• Excellent signal to noise ratios
• High level/low level input
• Aux input
• Adjustable gain output

$19.99

IN STOCK

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

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

$128.74

IN STOCK

7-Band Graphic Equalizer, 1/2 DIN, 8V Output Line Driver

• 7-Band Graphic Equalizer
• 8V Line Driver Built-In
• Switchable Low Pass Crossover
• Gold-Plated RCA Inputs
• Subwoofer Level Control

$48.00

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  • 5.0
3 reviews

Concert Series 2-Channel 24dB-Gain Line Driver, 5 Year Warranty*!

• Concert Series Overdrive Line Driver
• High Voltage Level
• Balanced Inputs
• Low Impedance Output
• Top-Mounted Controls
• Power Supply Ground is Switchable
• Preamp Inputs and Outputs

Add the Remote Subwoofer Control and Save 20%

$101.99

IN STOCK

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  • 5.0
3 reviews

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

Add the Remote Subwoofer Control and Save 20%

$189.99

IN STOCK

  • 5.0
3 reviews

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

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10% Rewards, Extended Warranty and more!

$254.99

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4-Band Equalizer with 9-Volt Line-Driver and Multiple-Source Signal Processor

• Half-DIN, 4-Band preamp EQ with front/rear active crossover features
• Line Driver circuit delivers 9-volts of preamp level signal through the RCA's
• Audio input selector
• Input level controls

$54.99

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7-Band Graphic EQ with Aux Input

• 7-Band Graphic Equalizer with Auxiliary Input
• Red illumination
• Master and subwoofer volume control
• Subwoofer frequency and level control
• Built-in fader control

$69.95

IN STOCK

4 Band Pre-Amp Equalizer with Remote Subwoofer Filter and Level Control

• Inputs: dual 2 ch. source
• Low pass filter: 50Hz to 80Hz
• Maximum input voltage: 15V
• Frequency response: 10 hz to 15 khz, ±1 dB

$19.99

IN STOCK

2 Channel Line Out 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

$79.99

IN STOCK

  • 3.7
3 reviews

Digital Bass Driver/Restoration Processor with Parametric Bass Control

• Digital Bass Driver/Restoration Processor with Parametric Bass Control
• Bass Driver For Accurate Recreation And More Bass Impact For Best Quality Bass
• Bass Equalization Circuit Contours Restored Bass To Speaker System
• Included Dash Mountable Wired Remote Control
• Bass Maximization Indicator Located On Chassis Provides Visual Leds That Flash When Bass Circuit Is Activated

50% Off NVX RCA Interconnect Cables with Purchase!

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(You can remove it later)

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Punch Pro 4-Ohm Passive Crossover

• Passive Crossover
• 250W Max and 125W RMS
• Dual Woofer Outputs
• Includes Mounting Hardware
• Designed for Punch Pro Midrange Drivers and Tweeters

$70.99

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Only 3 Left!

4-Band Graphic Equalizer with Built-In Pre-Amp and Subwoofer Control and CD/Aux Selector Switch

• 4-Band Graphic Equalizer with Built-In Pre-Amp and Subwoofer Control and CD/Aux Selector Switch
• 4 Gain controls (± 18dB)
• Isolated PWM (Pulse Width Modulated) power supply
• Selectable Radio/CD/Auxiliary outputs
• Master volume gain control

$36.99

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3-Way Electronic Crossover with 7V Line Driver

• Allows in-depth adjustment for multi-amp systems • Selectable parametric 15dB Bass boost • Self powered with a fully isolated DC to DC power supply • Phase shift control

$44.99

IN STOCK

  • 4.5
6 reviews

7-Band Parametric Equalizer with Subwoofer Electronic Crossover

7 Band Parametric Equalizer • Isolated PWM Power Supply • 8 Volts RMS Output • Subwoofer Outputs • Level Controls • Subwoofer Frequency Selection • 20dB Headroom • Gold-Plated RCA Input And Output Connectors

$42.99

IN STOCK

  • 4.4
5 reviews

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

$44.95

IN STOCK

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Sound Processors Information

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's equalizer preset curves do not adjust, resulting in under performance from your aftermarket speakers. Processors reshape the output of your factory stereo's 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.