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Kicker Solo-Baric S8L74 (08S8L74)

8" Dual 4 ohm Solo-Baric L7 Series Car Subwoofer


Good news and a little bad...

This item has been discontinued

But you may be interested in the newest model that's available.

11s8l74 thumbnail

Kicker Solo-Baric S8L74 (11S8L74)

OUR PRICE: $249.95

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The Kicker Solo-Baric L7 woofers continue to be the best sub in their class. The patented square-woofer technology allows for 18% more cone, which translates to more bang for your buck compared to competing round subwoofers. All new for the 08/09 series is a redesigned and improved SoloKon one-piece, injection-molded cone with full-coverage back bracing that pushes more air and creates louder bass than ever before. The new beautiful look was inspired by the big brother SoloX series, and it's making everyone at Sonic go crazy as it's tougher looking and better-performing.

In addition to the SoloKon improvements, the new L7 woofers also provide a much easier installation. The solid pole piece allows more heat sink capabilities and perimeter venting is built into the spider landing unlike previous years. This also allows for a shallower installation as you no longer have to account for venting through the back of the magnet. To make things even easier on the installer, Kicker moved the binding post to the corners of the woofer allowing for an easier connection when running the subs in parallel or series.

Key Features:

  • 8" Dual 4 Ohm Solo-Baric L7 Series Subwoofer
  • Power Handling:
    • Peak: 900 watts
    • RMS: 450 watts
  • Impedance: Dual 4 ohm
  • Titanium deposit impregnated cone woofer with rolled outer edge
  • Santoprene rubber surround
  • Full coverage back bracing
  • Poly-cotton semi-progressive spider
  • Spiralead™ tinsel-lead technology
  • Highly-efficient UniPlate™ pole-piece/back plate
  • Heat-reducing T-cut top plate
  • Solid pole piece
  • Cast-aluminum basket
  • Spring loaded terminals
  • High-temp dual 4 ohms voice coil
  • Frequency response: 28-100 Hz
  • Sensitivity: 84 dB
  • Authorized Internet Dealer
  • 1-year Manufacturer's warranty
2011 Kicker Authorized Online Dealer and eBay Seller

Product History:

Kicker 11S8L74 thumbnail
(newest, current model)
Kicker 08S8L74 thumbnail
(previous model, replaced by Kicker Solo-Baric S8L74 (11S8L74))
Kicker 06S8L74 thumbnail
(previous model, replaced by Kicker Solo-Baric S8L74 (08S8L74))
Kicker 04S8L74 thumbnail
(previous model, replaced by Kicker 06S8L74 Solo-Baric L7 Series)
(previous model, replaced by Kicker 04S8L74)

Subwoofer Specifications

Subwoofer Series
Each subwoofer manufactured is part of a series. This is the name of the subwoofer's series.
Solo-Baric L7 (Kicker)
Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
Peak Power Handling
Peak power handling refers to the amount of power a speaker can handle during a brief musical burst. The RMS power range figure is a much more reliable rating for determining the speaker's power requirements. The Peak power handling specification is typically rated per speaker unless otherwise noted.
900 watts
RMS Power Handling
The RMS power is the amount of power the speaker requires to operate safely and properly. RMS Power Handling refers to the amount of power a speaker can handle on a continuous basis. We recommend powering your speakers or subwoofer with 80%-120% of its recommended RMS rating. The RMS power handling specification is typically rated per speaker unless otherwise noted.
450 watts
Voice Coil(s)
Dual voice coil subs have more wiring flexibility than single voice coils subs; however, single voice coil subwoofers provide easier hookup options for wiring multiple subwoofers in parallel or series. You may also run a dual voice coil (DVC) sub in parallel, series, or combination. A quad voice coil has four voice coils and is equal to two dual voice coil subwoofers as far as wiring goes.
Impedance (Per Voice Coil)
The load value (in ohms) that the speakers present to the amplifier per voice coil - the amount of resistance to the current flow. This is a key specification as subs wired in parallel or low impedances can create problems with your amplifier and potentially void all warranties. We encourage you to ask our support department prior to purchase if you do not understand which impedance level will suit your application best.
4 ohms
Voice Coil Diameter
Diameter of voice coil, usually measured in inches.
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
28 - 100 Hz
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
84 dB
Subwoofer Design
This is the design of the subwoofer or the opening of the subwoofer enclosure. Each design has it's own benefits, whether it is a square, circle, or oval.

Round/Circle: This is the typical and common subwoofer design. They have a round cone and are a circle in design.

Square: These woofers are able to achieve a greater cone area in a smaller space. Because of the greater surface area, some square subwoofers will be louder than a round subwoofer of the same size.

Main Cone Color
This is the color of the speaker's or subwoofer's cone.
Woofer Composition
Lightweight woofer cone materials are essential for efficient operation. Poly cones produce exceptional sound and are sturdy against various changes in temperature. Paper cones are very efficient, and when treated for moisture resistance, will perform at a high level. Poly refers to polypropylene, which is thermoplastic or fibers that are polymers of propylene. IMPP refers to injection molded polypropylene, a commonly used process and material in speakers.
Titanium Deposit Impregnated Cone w/ Rolled Outer Edge
Woofer Surround
A speakers surround is part of the suspension system. The surround protects the cone and prevents it from being displaced as it flexes out from the basket. It is usually made of a durable material like treated foam or rubber in order to withstand the strenuous job of producing bass frequencies.
Santoprene Rubber
Magnet Structure
Defines the overall structure of the subwoofers magnet.
Subwoofer Grille
Most subwoofers are able to accommodate a universal grille; however, some subs include a grille and others have a specific, optional grille available for purchase separately. If "yes", then the subwoofer includes a grille. If "optional (sold separately)" the matching grille will need to be purchased in addition to the sub.
Optional (Accessory required and sold separately)
Re-Cone Kit Available
Some higher end subwoofers have replaceable cone assemblies. In case of a blown woofer, a recone kit allows for a simple replacement, as opposed to purchasing an entire new subwoofer.

Recommended Enclosure Specifications

Recommended Enclosure Type
This is the recommended type of enclosure that the subwoofer should be installed into. Some subwoofers are specially designed for particular enclosures.

Sealed: These enclosures completely enclose the air inside the box. These boxes produce a tight bass.

Ported/Vented: These enclosures have a slot of air to escape from the box. The result is a sound that has more "boom".

Bandpass: These are a combination of both sealed and ported enclosures. They can be very efficient, but require tuning for the best response.

Ported / Vented
Optimum Sealed Box Volume
This value indicates the ideal sealed box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Optimum Ported Box Volume
This value indicates the ideal ported box volume that the manufacturer recommends for the subwoofer. The volume is typically displayed in cubic feet.
Top-Mount Depth
The depth when installed on top of the mounting surface. Measured from the bottom of the speaker's magnet to the bottom of the mounting holes on the rim of the speaker.
Cutout Diameter
The actual diameter of the hole you will need to cut out if you are creating a new mounting location for this speaker, or if you are mounting a subwoofer in a box.
7-1/4" x 7-1/4"
Shallow Mount Installation
This means that the subwoofer/speaker is designed to be installed in areas that do not have a lot of space. Shallow mount subwoofers are typically found under a seat or behind the seat in some trucks.

Shallow mount speakers will typically have a mounting depth of 2" or less, while shallow mount subwoofers will typically have a mounting depth of 3" or less.


Electromechanical Parameters

Free-Air Resonance (Fs)
The free-air resonance frequency of the subwoofer, measured in Hz. At this frequency the weight of the moving parts is perfectly balanced with the subwoofers suspension system.
Equivalent Compliance (Vas)
This is the amount of air that has the same stiffness as the subwoofers suspension. The greater the rating, the lower the stiffness and larger recommended enclosure. It is measured in Liters.
Total Speaker Q Value (Qts)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including all dimensionless losses. Essentially, a high Qts value (closer to 1.0) means the subwoofer is great for sealed enclosures and a low Qts value (closer to 0) means the woofer is great in vented enclosures. A Qts of around 0.45 means the woofer will work decently in either enclosure type.
Electrical Q Value (Qes)
The subwoofers relative damping (Q) at the resonance frequency (Fs), including electrical losses. Also called the mechanical damping of the subwoofer. The unitless measurement usually varies from 0.5 – 10.
Electrical Resistance of Voice Coil (Re)
Amount of DC resistance of the subwoofer when measured with an ohm meter. Typically, this will read less than the impedance rating of the subwoofer.
Mechanical Q Value (Qms)
This is the subwoofers relative damping (Q) at the resonance frequency (Fs), including mechanical losses. Also called the mechanical damping of the subwoofer. This unitless measurement usually varies from 0.5 – 10.
Efficiency Bandwidth Product (EBP)
This number represents the trade off between having an efficient woofer and one with a wide bandwidth. To calculate this number, take the Fs and divide it by the Qes. If the number is below 50, the woofer is designed for a sealed enclosure only. If it's between 50-100 it can be used in either. Lastly, if it's greater than 100 it's designed for vented enclosures.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


Costa Mesa, CA

small size, big sound!

May 28, 2010

I am using two of these subs in the truck of my BMW 330ci convertible. They fit perfectly underneath the convertible top storage compartment. For the limited amount of space these subs produce a great solid sound that don't over do it.

24 of 39 found this helpful

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Melbourne, AR


May 18, 2011

I put one of these in a 2007 Honda Civic and it sounds great. I built a 1.47 cu. ft. box with a 2"x9.5"x21.25" port as specified by Kicker and hooked it up to a Kicker ZX 400.1 and it hits really hard. I was pleasantly surprised by the smooth response and how loud it is. I never thought I would have to use sound dampening with such a small sub but everything in the car rattles. GREAT product at a fair price.

17 of 29 found this helpful

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Jay bug

N.o la

Good buy

February 25, 2011

I have four of these babies in a 2009 Nissan cube ported box with a planet audio 1400vx model amp wired down to 1omh, man all I can say is their worth the money especially if your trying to save on space

15 of 25 found this helpful

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Tampa, Florida

Mighty Mini Monster

January 25, 2010

I have this little Kicker in a custom sealed enclosure in a Honda Insight (2 seater hybrid) and it hits allot harder than any other 8" I have ever heard, and in fact, better than many 10" dual coil speakers! At 500w from a Kenwood amp, this speaker still sounds great with little distortion and has been pushed hard for six months with rock-solid reliability.

16 of 29 found this helpful

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Madison, MS

Kicker's Name say's it all

March 22, 2010

I recently purchased 1 solo baric L7 and a zx700.5 amp. I had to custom build a box to go into my 07 tacoma but it was well worth the wait. Many people i have talked to think this single 8, yes a little 8 in sub, is louder than my previous 2-10's. I have to say it makes my truck shake quite well. I am very happy with the product! Customer service was great as well. They were polite and very knowledgeable.

15 of 28 found this helpful

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Las Vegas

Good sub for small enclosure

April 5, 2011

This sub hits hard and accurately - if you build the proper enclosure and give it plenty of power. I am using the sub channel of a JL HD900/5, 500 Watts RMS. 'Not forgiving of low powered amps. ' Huge and heavy magnet, with great post design. Perfect for smaller enclosures. I am using it on a bike! I bought it to replace the L5 which lost a voice coil. This is a beast. Sounds like 2 8's, if you set it up correctly.

13 of 27 found this helpful

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Kingsburg, CA

Get this sub!!!!!!!

February 2, 2011

I recommend this sub to everyone I ordered it for my buddy he has a single cab Colorado and it pounds its hooked up to a 2000 watt Power Acoustic Stax puts out a lot of bass better than two tens easily and is super clean great for the price as well. This sub is in a ported box as well its way more than I ever expected.

13 of 31 found this helpful

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fontana, CA


May 29, 2009

it works good. put it in a .29 cf box and ran a fosgate p300-1. its birth sheet says 412 w rms and 1231 peak. power is a kenwood 915 with a clean 5v rca's. cant wait fur it to break in. went into 04 lancer sportback, in custom made box that wedges in between center consoul and front of rear seat over hump. couldn't fit a 10" or i would have. needs more power i think. does 131db. planning on building bigger box and a 500 watt rms amp or bigger.

12 of 30 found this helpful

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troy h

hobbs NM

sounds like 12's

February 12, 2010

i got 2 of these wit a Kicker 08ZX750.1 pushing them and they bang like some 12's everybody ask me if i got 12's u should see there face when i show them they are 8's and i got them in a 96 lincoln towncar lowrider with my pumps i needed something small and that hits and theses really do if u don't have much room to work wit u should get them they pound

13 of 33 found this helpful

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Accessory Tools and Products

Accessories added

NVX 25 ft. of True Spec 12 Gauge Speaker Wire

100% OFC wire with EnvyFlex metallic jacket insulates and protects against damage from extreme conditions.

Your Price $39.99

20 Ft. of Kicker 12 Gauge Speaker Wire

Get true gauge Kicker speaker wire to match your Kicker subwoofer!

Your Price $34.95

Belva 23 ft. of 12 Gauge Speaker Wire

Ultra-flexible PVC blended jacket for easy installation.

Your Price $14.99

20 Square Feet of Sound Dampening Material

NVX Sound dampening is thicker than competitors, eliminates rattles and gives you bigger bass!

Your Price $59.99

Dynamat Sound Dampening Trunk Kit

Did you know sound dampening will reduce those annoying rattles and even increase your SPL?

Your Price $94.95

Stinger Sound Dampening Trunk Kit

Stinger's Roadkill sound dampening series is sure to kill unwanted road noise and rattles! Enough sound dampening for your whole trunk!

Your Price $69.99

40" x 15 Ft Piece of Premium Un-Backed Automotive Trim Carpet

Durable design for long life-span, available in many colors and shades.

Your Price $39.99

Gold Plated Dual Terminal Banana Plug Connector

Enables an expandable, secure connection accepting up to 8 gauge wire.

Your Price $1.99

2" Universal, Professional Heavy Duty Roller for Sound Damping/Dampening

Universal rubber roller to make it easy to install sound dampening.

Your Price $7.99

Car Stereo and Speaker Installation Tool Kit

Includes Test Light, Crimp/Splice Tool, Multi-bit Screwdriver and more.

Your Price $16.99

Xscorpion 9-Piece Nylon Plastic Pry and Chisel Tool Set

Easily removes dash/trims, door clips, panels and pins, rubber grommets and vehicle emblems.

Your Price $14.99

1mm All Purpose Solder

Solder is all purpose for use on most projects where solder is needed.

Your Price $8.99

Kicker 08GL78

8" Speaker Grille for Kicker Subwoofers

Your Price $25.95

Scosche SPL Meter

Monitor the noise level of your new car audio system with this SPL meter measuring from 60-135 dB.

Your Price $21.99

1 Kicker Solo-Baric S8L74 (08S8L74) Subwoofer

Mono Amp

2 Channel Amp - Bridged

2 Kicker Solo-Baric S8L74 (08S8L74) Subwoofers

Mono Amp

Mono Amp - Option 1

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp - Bridged

3 Kicker Solo-Baric S8L74 (08S8L74) Subwoofers

Mono Amp

4 Channel Amp

4 Kicker Solo-Baric S8L74 (08S8L74) Subwoofers

Mono Amp

2 Channel Amp

2 Channel Amp - Bridged

4 Channel Amp

Browse 2 questions and 1 answer
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Why did you choose this?
Sonic Electronix Store
space is important and the reviews were very good
william d on Sep 29, 2014
does the SL874 speaker require a box mount?
william d on Aug 23, 2014
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Product Summary


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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Kicker Solo-Baric S8L74 (08S8L74)

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