Kicker 11DX125.2

2-channel car amplifier — 30 watts RMS x 2

Item #: 2061DX1252

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12 Reviews | 1 question - 1 answer

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Boost your music's power

For some people, great music is what makes life worth living. Kicker built their DX125.2 2-channel amp to send 30 watts RMS each to a pair of speakers, so you can feel the musical joy too — all from an amp with a footprint less than the size of a piece of computer paper. You can also switch the amp over to 1-channel mode to run a subwoofer with 125 watts RMS of bass goodness. Use the built-in high- and low-pass filters to tailor the amp's output so your speakers sound their best. A bass boost adds some extra bump to your tunes.

Isolates and eliminates noise

You want lots of power for your speakers, but this Kicker DX amp gives you something extra — clean power. Kicker's FIT™ — Fail-Safe Integration Technology — rejects noise from alternators, audio/video gear, and other car electronics for crisp, clean operation, and accepts a wide range of signals so you can hook up the DX125.2 to almost any stereo.

Product Highlights:

  • 2-channel car amplifier
  • 30 watts RMS x 2 at 4 ohms (60 watts RMS x 2 at 2 ohms)
  • 125 watts RMS x 1 bridged at 4 ohms (4-ohm stable in bridged mode)
  • CEA-2006 compliant
  • selectable low-pass filter (80 Hz, 18 dB/octave)
  • selectable high-pass filter (100 Hz, 18 dB/octave)
  • selectable bass boost (0, 9 dB at 40 Hz)
  • Class AB amp technology
  • differential-balanced inputs eliminate noise from your vehicle's electrical system
  • preamp and speaker-level inputs (speaker-level input requires an optional adapter)
  • 8-gauge power and ground leads recommended — wiring and hardware not included with amplifier
  • fuse rating: 15A x 1
  • 8-3/8"W x 2-1/4"H x 8-5/16"D
  • warranty: 2 years (extends to 3 years when purchased with either a Kicker single amp wiring kit or a Kicker multi-amp kit)
  • Our 60-day money-back guarantee

My system has plenty of power. Who needs an amp?

You might think you don't need an amp because you have a 400-watt system in your car, or because your new stereo puts out 50 watts a channel. But those are peak wattage ratings, which may boil down to 15 or 20 watts per channel, using the more realistic RMS rating. An amp sends your speakers the power they need to deliver your music with clarity and impact, whether you're using factory speakers or high-performance components. And low-frequency reproduction requires lots of power, so an amp is an absolute must if you're adding a sub to your system.

Hands-on research

What's in the box?

Download owner's manual

  • 2-Channel amplifier
  • Two 15-Amp ATO blade fuses (1 installed/1 spare)
  • Two 4-gauge crimp-on barrier spade connectors
  • Four 12-gauge crimp-on barrier spade connectors
  • One 14-gauge crimp-on barrier spade connector
  • Four 3/4" Self-tapping screws
  • Owner's manual (English/ Spanish/ German/ French)
  • Power certification sheet

Product Research

Features
Controls
Connections
Warranty

Features

CEA 2006 Compliant: The Kicker DX125.2's power and signal to noise ratio are measured according to CEA 2006 standards (Consumer Electronics Association). These standards allow you to accurately compare the specifications of all CEA 2006-compliant amplifiers, even if they are different brands. Manufacturers who adhere to the standards can display the CEA 2006 logo on their products and packaging. The rated power output is 30 watts RMS x 2 channels into 4Ω (20 Hz-20 kHz, <1% THD+N). While the CEA 2006 S/N is 84 dB (measured at 1 watt), the S/N at rated power is >95 dB.

Kicker Livin' Loud Certified Power: The amplifier comes with a certificate that indicates the total maximum wattage of the particular amplifier, along with the model number, serial number, tested date, and whether the amplifier passed the total harmonic distortion, signal-to-noise ratio, and protection circuit tests.

Protection Circuitry: The DX125.2 has protection circuitry that will turn the amp off in the event of overheating, over voltage (power input), under voltage (power input), short circuit (speaker output), and over current (speaker output). If the Protection LED on the left side of the amp illuminates red, the protection circuit has engaged and the amp will not play until the problem is resolved.

Fail-Safe Integration Technology (FIT): To accommodate the varying range of signal levels coming from today's factory and aftermarket radios, the DX125.2 utilizes Fail-Safe Integration Technology (FIT), offering isolated differential inputs for significant noise reduction, and compatibility with virtually any factory radio.

Speaker Level Input: High level inputs can be used when the source device doesn't have preamp level outputs. The same RCA inputs on the amp are used for either speaker level or line level connections. When a speaker level signal is used, speaker wire to RCA adapters are needed (item number 20609ZISL, sold separately) and the Input Level should be set to High.

Controls

Gain Control: With the Input Level Control switch at the appropriate setting, you can set the rotary Gain Control to match the output of the source unit. The Gain Controls are adjusted with a flat-head screwdriver and can be set between 0 and 11.

Input Level: The input level control is switchable; when set to Low, the amp can accommodate a line level input signal of 125mV-5V, on High, the amp will accept a 250mV-10V speaker level signal.

Auto Turn-On: The Auto Turn-On switch offers three options:

  • +12 V: the amp turns on when +12 volts is applied to the remote terminal
  • DC Offset: the amp turns on when a 6 volt surge is detected on the signal inputs (from a speaker level source); in this mode the amp's remote terminal acts as a +12 volt output to turn on another component
  • Audio: the amp turns on when an incoming audio signal is detected; in this mode the amp's remote terminal acts as a +12 volt output to turn on another component

Crossover: The crossover can be set for low-pass, high-pass, or full-range operation. The low-pass crossover point is 80 Hz and the high-pass crossover point is 100 Hz; the crossover slope is 18 dB per octave.

KICKEQ Bass Boost: The bass boost circuit switch (on/off) provides a +9 dB signal boost at 40 Hz.

Connections

Left Side of Amplifier:

  • +12V (power): screw terminal; accepts spade connector up to 0.5" wide
  • REM (remote turn-on): screw terminal; accepts spade connector up to 0.325" wide
  • GND (ground): screw terminal; accepts spade connector up to 0.5" wide
  • Speaker Outputs: one pair of screw terminals; accept spade connectors up to 0.325" wide
  • Fuse: one 15-amp ATO fuse (factory installed)

Right Side of Amplifier:

  • RCA Inputs: one pair of RCA input jacks

Warranty

Extended Warranty: Kicker will add a year to the standard two year warranty (for a total of three years) when any matching Kicker amplifier wiring kit is used with this amp (8 gauge minimum). Both the amp and wiring kit should be purchased on the same order and the usual warranty limitations apply (covers manufacturing defects, must be purchased from an authorized Kicker dealer, etc.).

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 open the box, verify contents, 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.

Kicker 11DX125.2 Reviews

Average Customer Review:

12 reviews
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Kicker 11DX125.2 Reviews

Written By JD, Aspen, CO on Tuesday, September 16, 2014

Crutchfield Customer Review (What's this?)

Works perfectly as a sub amp. More than enough power for what I need.

Pros: Plenty of power for a sub.

Cons: None

Best bang for your $$$$ all the way!!!!

Written By Michael T. McCaslin, Gresham, OR 97080 on Sunday, August 03, 2014

For the cost of this amp ill say this is about as good as you will get and ever find. It can truly be used two ways, one you can run it to you door speakers or even a pair of 6by9s and two you can brige it down to run max power and run and nice 10" sub all day. Well hope this helps also haven't had any problems with it yet either so that's always good!!

very happy

Written By glowbug, batesville, ar on Tuesday, July 29, 2014

Crutchfield Customer Review (What's this?)

Works great powering two old Kenwood door speakers.

Pros: small

Cons: none I see

Just What I Expected

Written By Larry, Princeton, MA on Thursday, June 26, 2014

Crutchfield Customer Review (What's this?)

Nice clean sound and plenty of power to drive the retro sound speaker I bought/

Great little amp

Written By Anonymous, LA California on Monday, April 21, 2014

Crutchfield Customer Review (What's this?)

Was very easy to install and perfect for the front speakers in my older VW.I like the compact size and power.

KICKER

Written By MoonMan, Frackville PA on Sunday, April 13, 2014

Just did up my first car audio system and wow. i got this little thing hooked up to TWO 1300 watt sony Xplodes and these things POUND. i was skeptical at first due to size and wattage but this is THEE BEST bang for your buck. took me a week to hook everything precisely how it was supposed to be but i have volume cranked every minute every hour every time im in my car which is quite a bit, and it hasnt failed me yet gets a little warm after an hour or two of straight full bass thumpin. this amp is awesome would reccomend to everyone who wants a system to show of and bests your friends $1000 pro audio systems at a very cheap price. thank you kicker god you have completed my life :::::))))))))





My only tip would be to make sure every thing is hooked up correctly , and be prepared to blow peoples faces off!!!

Pros: handles power constant clean bass, power, and excellence...... Has shut off protection if anything to happen

Cons: Not a thing

Great amp

Written By Joe joe, houston tx on Monday, February 17, 2014

Crutchfield Customer Review (What's this?)

This is a great little amp I have it pushing one 8" polk sub and couldnt be happier.

Pros: Gets it done

Cons: none

Kicker 11DX125.2

Written By J, Clarksville, TN on Saturday, June 29, 2013

Crutchfield Customer Review (What's this?)

Great product

Pros: Compact and delivers quality sound.

Cons: N/A

Fantastic amp!

Written By Brandon J., Harrah, okay on Thursday, May 30, 2013

My friend actually has this installed in his truck and he recommended it to me. I have mine hooked up to a 12 inch Kicker sub and the sound quality is great!

Awesome amp!

Written By Sneakyninja, Claremore, Ok on Wednesday, April 17, 2013

I didn't get mine from crutchfield. But non the less its an awesome product! It works great for powering my 6.5" sub.

Pros: This amp works great if you have limited space and don't need a ton of bass!

Cons: About to get a new car so ill have to upgrade my system.

Good Product

Written By Brad, Grand Rapids on Monday, October 29, 2012

Crutchfield Customer Review (What's this?)

Had already replaced speakers and receiver, this along with new sub finished off system. Using to power a 6.5 subwoofer in center console- more than capable enough for such a small sub.

Pros: fits under dash(out of sight), bridgeable, and adjustable.

Cons: cost me extra money due to listening to crutchfields "jeep" expert. told them i needed an amp small enough to mount under dash of my jeep so it wouldn't be seen while top was off in the summer. bought sound ordance unit on there advice only to find out it was way to big to fit. cost return shipping charge off of my refund to return. still bought amp from them as there prices are very good, but recommend doing your own due diligence. still giving 5 stars as this is a review of the product not the company.

Kicker amp

Written By Brian, Florida on Tuesday, August 28, 2012

Crutchfield Customer Review (What's this?)

I needed a small amp, mainly due to size restrictions in my Jeep Wrangler. I don't listen to super loud bass so this seemed to fit my needs. It was easy to install, I use this with a Kicker 6.5" sub and have no issues at all. I followed their advice and put the sub in a sealed box with hollowfill and separated the power and speaker wires.

Pros: Price Size

Cons: None

Get everything you’ll need to enjoy your new Kicker 11DX125.2

You'll need an amp wiring kit to install your new amplifier, as wiring is not included.
Bring the music from your amp to your speakers.
Patch cables take the music from your stereo to the amplifier. Most amp wiring kits don't include them.
Helps protect your car's charging system and improves power handling. Required power and ground wires not included with cap.
The right tools will make the installation easier.
Have your new amplifier put in by a qualified professional in your area.
Kicker PK8

Kicker PK8

8-gauge amplifier power wiring kit

Item #: 206PK8

(1)

$79.99
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T-Spec 8PK Installation Kit

T-Spec 8PK Installation Kit

8-gauge amplifier wiring kit — includes speaker wire

Item #: 1208PK

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$59.99
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Rockford Fosgate RFK8i

Rockford Fosgate RFK8i

8-gauge amplifier power and signal wiring kit

Item #: 575RFK8I

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Rockford Fosgate RFK8

Rockford Fosgate RFK8

8-gauge amplifier power wiring kit

Item #: 575RFK8

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$64.99
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EFX PA8BX Wiring Kit

EFX PA8BX Wiring Kit

8-gauge amplifier wiring kit — includes 2-channel patch cable

Item #: 142PA8BX

(4)

$49.99
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T-Spec 16-gauge Speaker Wire

T-Spec 16-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW16WB1

(13)

T-Spec 12-gauge Speaker Wire

T-Spec 12-gauge Speaker Wire

Black/white jacket — priced per foot

Item #: 120SW12WB1

(30)

Stinger PRO Series Speaker Wire

Stinger PRO Series Speaker Wire

Priced per foot (16 Gauge)

Item #: 541SPW516B

(51)

Kicker KISL

Kicker KISL

2-channel speaker wire adapter (bare-wire connector to RCAs)

Item #: 206KISL

(14)

$12.99
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JL Audio XD-CLRAIC2-SW

JL Audio XD-CLRAIC2-SW

2-channel speaker output converter (bare speaker wires to male RCAs)

Item #: 136XDCLR2S

(12)

T-Spec 2-Channel RCA Patch Cables

T-Spec 2-Channel RCA Patch Cables

Available in 7 different lengths (20-foot)

Item #: 120RCA202

(27)

$20.99
Add to Cart
EFX 17-foot RCA Patch Cable

EFX 17-foot RCA Patch Cable

Item #: 142A17C

(55)

$7.99
After $2.00 Savings Add to Cart
T-Spec Capacitor

T-Spec Capacitor

1.5-farad capacitor with red LCD meter

Item #: 12015DDC

(11)

$79.99
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Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

Item #: 126CR6NGL

(52)

$24.99
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S&G Wire Cutter/Stripper Tool

S&G Wire Cutter/Stripper Tool

Cuts and strips 12- to 22-gauge wire

Item #: 18119100

(15)

$19.99
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Pro.Fit Wire Worm

Pro.Fit Wire Worm

Installation tool helps route wiring through tight spaces

Item #: 042DM4533

(33)

$12.99
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S&G Tool Aid 87650

S&G Tool Aid 87650

Door Trim and Panel Removal Tool

Item #: 18187650

(69)

Pro.Fit Trim Panel Tool

Pro.Fit Trim Panel Tool

Remove your vehicle's trim panels without damage

Item #: 042DM4022

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Skewdriver Pro SPK4042

Skewdriver Pro SPK4042

Ratcheting straight and offset screwdriver set with 40 bits (Skewdriver Pro with ratchet handle, pictured)

Item #: 180SPK4042

(8)

$49.99
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Spec Tools SQR-200a Squeeze Wrench

Spec Tools SQR-200a Squeeze Wrench

Narrow space ratchet kit with 18 sockets

Item #: 180SQR200A

(1)

$49.99
Add to Cart
Bojo Trim Panel Tools

Bojo Trim Panel Tools

Set of 6 pry tools — helps remove interior and exterior trim and door panels

Item #: 126CR6LNGL

(2)

$29.99
Add to Cart
DEI Heat Shrink Tubing

DEI Heat Shrink Tubing

Black 4-foot length (Assortment)

Item #: 696010839

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$24.99
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InstallCard: Amp or Equalizer

InstallCard: Amp or Equalizer

Prepaid professional amplifier or EQ installation

Item #: 597421003

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$79.99
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Autosound 2000 Disc Five

Autosound 2000 Disc Five

System Demonstration — Test CD

Item #: 503CD105

Autosound 2000 Disc One

Autosound 2000 Disc One

Low Frequency Test CD (Disc One)

Item #: 503CD101

(1)

$19.99
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Questions & Answers Ask the community. Share your knowledge.

1 question already asked

The amp is rated down to 2 omhs in stereo mode but only 4 in bridged mode. [ Charlie  Aug 02, 2014 ]