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The Epicenter® by AudioControl

Bass restoration processor (White)

12 Reviews | 3 questions - 5 answers

Item # 161EPICEW

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825 Gardens Blvd

109 South Carlton

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Our take on the The Epicenter® by AudioControl

You like all the bumpin' bass you hear in hip hop, rap, and EDM? Well you can put that deep, biting bass into any kind of music — from classical, jazz, and rock to folk and Tejano — with an AudioControl Epicenter bass restoration processor. Most factory radios dial down bass response to protect flimsy speakers, so when you do add a subwoofer, there's no bass to play. The Epicenter will bring it back.

Kick up the bass

You like all the bumpin' bass you hear in hip hop, rap, and EDM? Well you can put that deep, biting bass into any kind of music — from classical, jazz, and rock to folk and Tejano — with an AudioControl Epicenter bass restoration processor. Most factory radios dial down bass response to protect flimsy speakers, so when you do add a subwoofer, there's no bass to play. The Epicenter will bring it back.

AudioControl's legendary Epicenter bass processor maximizes the low-frequency power and punch of your bass system, whether it's a simple powered bass tube or a full-blown competition setup. Simply install this processor between your receiver and your amplifiers or crossovers, and you'll finally be able to hear all the good bass you've been missing. An included wired remote lets you control the amount of thump from the front seat.

How does it do it?

Sophisticated processing analyzes the incoming signal and synthesizes low-bass fundamental tones, increasing bass response tremendously. The Epicenter connects to any receiver with preamp outputs — its balanced inputs will reject noise from your car's electrical system. A subsonic filter removes extreme low frequencies from your signal so your amps and subs will play more efficiently, while a single band ParaBass equalizer lets you fine-tune the bass tone.

Product Highlights:

  • bass restoration processor (white)
  • increases bass response from your system
  • 2-channel preamp inputs and outputs
  • Para-Bass controls adjust center-frequency and width of bass processing
  • fixed subsonic filter (33 Hz, 12/dB octave)
  • wired dash-mount bass remote
  • 8"W x 6-1/2"H x 1-3/16"D
  • frequency response: 10 to 100,000 Hz
  • weight: 1.7 pounds
  • warranty: 5 years
  • Our 60-day money-back guarantee

What's in the Box:

  • Pre-amp Bass Restoration Processor (white)
  • Remote dash mount control
  • 20' RJ-14 cable
  • Adhesive backed remote label
  • Owner's manual
  • QC checklist
  • Product registration card

Good product would definitely continue buying this brand product

Max gutierrez, Manassas,VA


The Epicenter® by AudioControl Reviews

Average Customer Review(s):

(12 Reviews)

Great bass

Max gutierrez from Manassas,VA on 5/26/2017

Good product would definitely continue buying this brand product

Pros: Great bass

Cons: Non

The Epicenter

Sixtus from Cincinnati, OH on 1/24/2017

Crutchfield Customer Review (What's this?)

This product is a buy you can't pass on. If you are looking for enhanced bass then this is the product for you.

Pros: Will do everything it says it will.

Cons: None

Hear and FEEL your music.

Daryl from San Diego, CA on 12/26/2016

This functions as somewhat of a bandpass EQ. Use the "sweep" to pinpoint a frequency that you want a strong focus on. Use the "wide" to create the bell-curve of frequencies it will operate in. Don't use your head unit's EQ for the bass frequencies. Let the Epicenter do the work and prepare to be astonished not only by what you hear, but by what you feel. There is no catch-all setting for each type of music. You have to play with it. Amazing product.

Pros: Ridiculous bass. Easy addition to your system.

Cons: I wish AudioControl would put numbers on the dials so that you knew exactly what frequencies you were modifiying.

Unbelievable bass

Ruben from Reedley ca on 11/25/2016

I installed a JL Audio 3v3 10 in a ported box powered by a fosgate 500 amp under the back seat of 2016 ext can sierra. Using stock speakers for kids and highs. Sounds great but on some sounds it didn't hit as hard. So I installed the epi center and omg people don't believe the I'm only running one ten in my makes a world of difference. Impressive bass on any song

Pros: Easy install inexpensive ext control

Cons: None

Gives You What You Have Been Missing

Jerry from Texarkana, AR on 10/16/2016

Crutchfield Customer Review (What's this?)

I had a great sounding system. But it was missing something. My brother said get an Epicenter. The difference was night and day.



Make your own earthquake with the Epicenter!

Charles from Staffordsville, KY on 10/3/2016

Crutchfield Customer Review (What's this?)

The Epicenter does not only make your bass louder (by boosting the RCA voltage) but it makes it deeper by creating a bass note 1/2 octave below the original bass note. Play a 100 Hz bass note and the Epicenter adds a 50 Hz bass note. A 60 Hz not gets a 30 Hz note, and so on. It works up to 250 Hz, so it should be placed before any subwoofer crossover. The dash mounted remote knob controls the volume of the added bass note. The wide and sweep controls on the top allow you to pinpoint a specific frequency area that you want boosted more. It also has a built in subsonic filter to protect subwoofers from damage. It's really a neat unit that adds fun to every type of music.

Pros: Nice small unit that make your bass deeper and more fun

Cons: Can't be used after a subwoofer crossover.


mdbeats from texas on 6/8/2015

Crutchfield Customer Review (What's this?)

This product is great, really helped put bass back into the music I like listening to. I bought this because the spanish and rock music I like had no bass in my set up. This epicenter solved my problems.

Pros: I am no car audio guru but it was very easy installation. The quality of the sound that comes out is second to none. Great product

Cons: None yet


Matt from Albany, OR on 12/18/2014

I have an old Zapco Z100S2 190-watt amp that runs one 10" Rockford Fosgate sub bridged. It sounded OK... but it was just missing "something". After listening to it, a friend told me to get an Epicenter, so I bought an open-box and holy cow... it blew me AWAY! It was just what my system needed! The increase in bass response was amazing... no matter what I'm listening to I can just adjust the remote knob accordingly for just the perfect amount of bass. AudioControl simply makes an outstanding product, I also have an older 3XS crossover that is superb. And if you need to call them directly (like I did), they will go step-by-step with you to get your settings on the Epi just right, which can be a little confusing for the newcomer. Thanks Crutchfield and AudioControl for giving me that extra "something" that was missing from my music!!!

Pros: Easy-to-follow directions and install

Cons: None so far!!!

What are you waiting for! Get it!

mb from madison heights on 8/31/2014

Crutchfield Customer Review (What's this?)

you can win a Bass competition playing nothing but music from the 1940's. This is the neatest car stereo product you will ever own! Don't pay any attention to anyone saying it won't do anything for today's music, It will make the modern music' s bass sound WICKED! anyway just get it and if you don't like it Crutchfield will let you return it. so there is nothing to loose!

Pros: everything

Cons: what cons?

Audio control Epicenter

Threcio from Tortola, British Virgin Islands on 9/20/2013

Crutchfield Customer Review (What's this?)

This product is awesome. I have it connected to a 15 inch Kicker Comp and it pounds. I recommend the epicenter especially for songs that dont have much lows. This product really backs up its name.



awsome bass

Aaron from Houston, Tx on 10/6/2010

This product is awsome. It gives your system that extra bass it is missing. It makes my two 10 in subs hit super hard. Every one that loves bass should have one. I recommend to everybody.




MICHAEL from Henryetta, OK on 1/7/2010

It did ad more bass, but dash mount control knob was more like a volume knob for bass which now is a very hard bass. Manual is not really clean or unit is not marked at what frequencies the control knob is adjusting like on their 4.1 EQ. The other adjust the width of the bass. I have it with a 25 Hz sub sonic filter using Alpine Rs in a ported to Alpine's Optimum Specs of 1.7 c.f. For me the bass hits to hard and not as musical, but maybe some of you guys like that. JVC head unit with EQ and Surround Sound adjustment does OK and just wanted to be able to restore what they said was lost bass, but it seemed harsh to me, not sure of Ipods etc with loss bass only use CDs FM some HD FM. A actual EQ would work better with marked frequencies and ability to know what your adjusting. It's a very hard hitting bass which is better if you used a EQ!




Hands-on research

Product Research


Bass Restoration: Rather than simply turning up the bass, the patented bass restoration circuit takes a full range input signal and measures the upper harmonics of the bass frequency range to determine what frequencies have been lost during the recording process, then correctly restores the missing bass information. The remote rotary knob allows you control how much bass is restored to the system. A full range signal is output from the Epicenter that can feed a full range amp, a subwoofer amp (with built-in crossover), or an outboard crossover.

Para-Bass: Para-Bass is a single band, parametric equalizer for the bass output. The center frequency is continuously variable from 27 Hz to 63 Hz. The width of the band is also adjustable.

Bass Maximization: The Bass Maximization circuit allows The Epicenter to maximize the bass output of any system while restraining destructive bursts, which can damage speakers. the 5.0 volt factory setting can be changed to 2.5, 7.5, or 10 volts if the amplifier and speakers can handle it.

Remote: The bass restoration level is adjusted using the included wired remote. The remote is designed to be dash mounted, within reach of the driver; it can be mounted under the dash with the supplied bracket, or the bracket can be removed and the knob and LED can be custom mounted through the dash. Dimensions:

  • Width: 2.557"
  • Height: 1.489"
  • Depth: 1.824" (2.448" including knob)

Subsonic Filter: The subsonic filter crossover point is 33 Hz; it's governed by a replaceable chip, so it can be changed to 20, 25, 30, 35, 40, or 45 Hz.

Balanced Inputs: Using the balanced differential input circuit cancels noise picked up in the transmission line between the Epicenter and the the source unit. The inputs can be set to balanced or unbalanced if needed.

Ground Isolation: The power supply ground is switchable, in case of ground loop noise. The factory position is fully isolated (typically the best choice), but can be changed to Ground or 200Ω.

Terminal Block: The power/ground/remote terminal is removable; the wiring is attached to the block, then the block is plugged into the Epicenter.


  • Maximum Input Level: 15 volts RMS
  • Maximum Output Level: 9.5 volts RMS/13 volts peak
  • Frequency response: 10 Hz-100 kHz;±1dB
  • THD: 0.003%
  • S/N Ratio: 130dB
  • Balanced Input Noise Rejection: >60 dB
  • Input Impedance: 10 kΩ
  • Output Impedance: 150 ohms

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Staff Reviews

Product reviews from the Crutchfield Labs

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Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

To improve my system's bass sound [ Jean-Louis  Jul 09, 2017 ]
Recommended by a friend [ Kevin  Feb 18, 2017 ]
Adds bass to older Music. [ Arturo  Dec 22, 2016 ]
Bass [ Antonio  Mar 10, 2017 ]
Becuase i meeded it for tje car [ Luis rafael  Jan 18, 2017 ]
Had one before loved it [ Brian  Dec 24, 2016 ]

3 questions already asked

You want more bass out of your door speakers? What crossover is used for them? Are they big enough to produce what you're looking for? The Epicenter adds bass back into music that may have been removed when converted to MP3 or during studio recording, etc. Most of what it adds to the music is in the sub bass range. This product doesn't necessarily add more volume throughout the sub bass range, only at the frequencies where it's been taken out. Audiocontrol's website has a great explanation of what it does and at what frequencies. [ Charlie  Aug 23, 2017 ]
Not unless your door speakers are hooked up to your power amp, in which case I would recommend an LQ7 or LQ9 it lets you control the sound all around to your preference. [ Antonio  Aug 22, 2017 ]
No, this will not get more bass into your door speakers. You are looking for more midbass, which is typically between 50-250 Hz. The Epicenter works its magic mostly under 50Hz. What you need is dedicated midbass speakers that are at least 6-1/2 inches in diameter or larger and have plenty of amplifier wattage powering them to get good midbass out of the door locations. There are other tricks to improve your midbass like adding sound damping materials to the doors and sealing all holes in the door. Search Youtube for videos on how to improve your midbass. Here are a couple of videos to get you started: 1. 2. Hope this helps. [ Charles  Aug 22, 2017 ]
The Epicenter can provide up to a 9.5volt signal output so, an external line drivers is not required. I hope that helps. My Bio: [ Ryan  Apr 06, 2017 ]  Staff
Edgar, I haven't hooked it up as of yet. The instructions note that you should hook it to the full range output before any crossovers. If your sub amp has an internal crossover, then I would set the head unit output to full range and make the frequency cut at the amp. I hope this helps. Thanks, [ John  Jan 08, 2016 ]

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