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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

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

7-Band Graphic Equalizer with Front 3.5mm Auxiliary Input, Rear RCA Auxiliary Input and High Level Speaker Inputs

• 6-Channel / 8-Volt RCA Outputs
• Blue Illmination
• Gold-plated contacts for optimum signal transfer
• Selectable 12dB Low-Pass Filter (60Hz or 90Hz)
•RCA and High Level Speaker Inputs

Pair the Clarion EQS755 w/ the XC1410 Amp!

$61.95

IN STOCK

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

$169.99

OUT OF STOCK

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

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50% Off RCA Interconnect Cables with Purchase!

$119.99

IN STOCK

Only 2 Left!

3-way Electronic Crossover

• 3-way Electronic Crossover
• 2/4/6 Channel Input
• 6-Channel / 5 Volt RCA Outputs (Front/Rear/Subwoofer)
• Front/Rear/Subwoofer Lever Control
• Subwoofer Equalizer and Boost Level Controls
• Gold Plated Terminals

$82.99

IN STOCK

7-Band Graphic Stereo Equalizer (1/2 DIN) with Dual Aux Input and Sub Control

• Dual Auxiliary Inputs
• Master & Subwoofer Volume Control
• Gold-Plated Contacts
• Blue Illumination
• 7V Preamp Outputs

$49.99

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

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$99.99

IN STOCK

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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$399.99

SPECIAL ORDER

Ships at Later Date

1/2 DIN 7-Band Parametric Equalizer w/ LED Display

• 7-Band Parametric Equalizer
• Cut/Boost: +/-12dB
• Independent Subwoofer Level Control
• Variable 30-300Hz Subwoofer Low-Pass Filter

$71.99

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

Digital Bass Enhancement Processor

• Digital Bass Enhancement Processor
• Bass Driver Circuit
• Bass Equalization Circuit
• Bass Maximizer Indicator
• Bass Output Control

25% Off NVX RCA Interconnect Cables with Purchase!

$60.97

IN STOCK

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

$24.99

IN STOCK

Digital Bass Restoration Sound Processor

• Digital Bass Restoration/Booster Processor
• Low Frequency Adjustment
• Flat Frequency Response
• Removable Terminal Block
• 8 Volt Maximum Output Voltage

50% Off NVX RCA Interconnect Cables with Purchase!

$99.99

IN STOCK

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

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Add the Remote Subwoofer Control and Save 20%

$189.99

IN STOCK

8 Channel Cirrus Logic powered 32 Bit Core / 192kHz Digital Signal Processor with 4 Saved Settings

• Cirrus Logic powered 32 Bit Core / 192kHz Digital Signal Processor
• 8 Channel RCA Output
• 192khz S/PDIF Optical Digital Input
• 192khz S/PDIF Coaxial Digital Input
• 16 band Parametric Equalizer for each channel
• Crossover selections: Full Range, High Pass, Low Pass or bandpass

$189.99

IN STOCK

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

$26.99

IN STOCK

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

Add the Remote Subwoofer Control and Save 20%

$149.99

IN STOCK

7 Band Parametric Equalizer

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

Only 2 Left!

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

50% Off NVX RCA Interconnect Cables with Purchase!

$129.99

IN STOCK

2-Channel Universal PEQ (Punch EQ) Remote & Line Driver for Any Aftermarket Audio System

• 2-Channel Universal Punch EQ
• Built-In Line Driver
• Auto-Sense Turn-On
• Compact Design

$65.97

IN STOCK

Digital Bass Reconstruction Processor with Parametric Bass Control Remote and Changeable Top Acrylic Color (Black and White)

• SMT Technology with Ultra Bass Response
• Aluminum Die-Cast Chassis
• Variable Frequency Sweep
• Variable Q Width
• Variable PWM Subsonic Filter
• Low Level RCA Input
• Signal Sense Remote Turn-on

25% Off NVX RCA Interconnect Cables with Purchase!

$56.59

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.