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Kicker 11HS8 (HS8)

150W HideAway Loaded 8" Subwoofer Enclosure with Integrated Amplifier (Hide Away HS8)

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Kicker 11HS8 (HS8)

150W HideAway Loaded 8" Subwoofer Enclosure with Integrated Amplifier (Hide Away HS8)


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Trunk Kit - 20 Square Feet of Sound Dampening Material (Five 18" x 32" Pieces)



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Kicker Audio Store

Kicker Audio: Quality, Performance, and Passion
(Sonic at Stillwater Designs HQ)

Kicker Authorized Dealer

General Product Features:

  • Specifically designed 8" heavy duty subwoofer
  • RMS power rating of 150 watts
  • Quick-connect Molex power
  • Designed to fit in the tightest locations and easily add bass to any vehicle
  • Harness/plug for simple set up or removal
  • Nylon straps with Velcro help secure enclosure in place
  • Frequency response: 25-120 Hz
  • Sensitivity: 95 dB
  • 1-year Manufacturer's Warranty

Amplifier Features:

  • RMS power output: 150 watts
  • Wired remote bass level control included
  • KickEQ bass boost: Variable 0-6dB @ 40Hz
  • Auto turn on (12v or DC)
  • Speaker-level (high-level) inputs with signal sensing for automatic turn-on
  • Input sensitivity:
    • Low level: 125mV-5V
    • High level: 250mV-10V
  • Variable low-pass filter (50-120 Hz, 12 dB/octave)
  • Subsonic filter (24dB/octave highs pass @ 25Hz)
  • Phase Shift: 0-180°
  • Frequency response: 25-120 Hz

Enclosure Specifications:

  • 8" Amplified Enclosure
  • Sealed design
  • Slim design ideal for limited space
  • Molex power terminal for quick set up and removal
  • Dimensions: 14-1/4 D x 3-1/8 H x 9-1/2 W

Amplifier Specifications

Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.

150 watts
Speaker Level Inputs
Speaker level inputs are commonly referred to as high-level inputs and vice versa. This input type allows you to get your audio signal directly from the speaker wire in your vehicle, instead of using RCA cables. The advantage of this is factory integration, as most stock radios do not have RCA outputs to run amplifiers.
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Low-pass (LP)
Low-Pass Crossover Frequency
The low-pass crossover frequency is typically used for subwoofers. It can be a fixed crossover point or a variable crossover range. A variable low-pass crossover allows you to select a specific crossover point which allows frequencies below the set crossover point to pass, while making frequencies above the set point gently or harshly roll-off, depending on the steepness of the slope.

The steepness of the roll-off slope is measured in dB/octave and refers to the rate of attenuation (lowering of volume) outside their pass bands.

50 - 120 Hz
Subsonic Filter
Allows you to block (filter) ultra-low frequencies that your subs cannot reproduce.
24dB/octave @ 25hz
Signal-to-Noise Ratio
This spec compares the strength of the signal to the level of background noise. A higher value indicates less background noise.
95 dB
Bass Boost
The objective of the bass boost is to get more kick out of your subwoofer. It is a circuit that emphasizes the lower frequencies at a given point. The bass boost should always be set first before setting the gain. This feature is known for destroying subwoofers and is commonly used incorrectly, so be cautious.
0 - 6 dB
Bass/Gain Remote
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Fan Cooled
A great feature to have if an amp generates a large amount of heat. Cooling fans can help regulate the temperature to prevent the amp from overheating (burning).
CEA-2006 Compliant
Amplifiers that have been tested to meet specific standards. When a car amplifier meets these standards, you can be sure that it will be able to produce the amount of power specified by the official CEA-2006 rating. Usually, these rating consist of the following items:
  • RMS Power
  • Signal-to-Noise Ratio

This rating applies to both external car amplifiers, as well as the amplifiers inside of in-dash stereos.


Subwoofer Specifications

Subwoofer Size
Refers to the diameter of the subwoofer, measured in inches.
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.
150 watts
Total RMS Power Handling
This is the total RMS power handling of all the subwoofers included in the package or enclosure.

If the loaded enclosure or amplifier and subwoofer package includes more than a single subwoofer, then this is the total RMS power handling for all of the subs combined.

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 giving your subwoofer(s) 75% - 90% of the recommended RMS rating.
150 watts
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".
95 dB
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).
25 - 120 Hz

Enclosure Specifications

Box Type
Represents the style of the enclosure. Be sure to purchase the appropriate enclosure type and internal volume that will be compatible with your subwoofer's recommendation.

Sealed - Sealed boxes are those that have no holes or vents in it. The only hole in a sealed box is where the subwoofer is installed. Smaller sealed boxes require more power than a larger sealed box. They provide a tight, accurate bass, while the larger sealed enclosures provide a "boomier" and louder bass.

Ported / Vented - Ported/Vented Enclosures provide an even boomier, louder bass, but less accurate then a small, sealed box. Ported enclosures typically require more airspace per sub and also less power output from an amplifier to perform correctly.

Bandpass - Bandpass enclosures make subwoofers perform efficiently, but loose. The bass is not as "boomy" as a ported enclosure nor as punchy as a sealed enclosure. Bandpass enclosures work well with lower to mid-level subwoofers.
Number of Subs/Speakers
This value represents the number of speakers or subwoofers that the enclosure accommodates.
Box Style/Shape
The box style or shape refers to the actual shape of the box. Square and rectangular boxes are straight-edged boxes on all sides, whereas hatchback and truck style enclosures feature an angled front or back design that allows for installation in places short on depth such as single cab pickup trucks. You can also use such enclosures in hatchback cars or other vehicles where space is a premium. Tube and cylinder shaped boxes were made popular by Bazooka and are a great option for those looking for a nice amount of bass without sacrificing lots of space. They may even fit in locations that slim truck boxes cannot fit in. If the enclosure is vehicle specific, we encourage you to read the product description to find out which vehicles the enclosure is made for.
Hatchback Style, Angled Back
The height of the item, measured from top to bottom, in inches.
The width of the item from left to right (side-to-side) measured in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
Wood Thickness
The thickness of the wood the enclosure is made of, measured in inches.
Box Exterior Color
The color of the enclosure's exterior/outer finish.
Two Tone Color
Box Finish
The material used on the outside of the box. Most boxes are carpeted to prevent exterior scratches; however vinyl is popular as it can often be color-matched to a near exact look of your leather factory interior.

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




October 15, 2014

This has worked really well so far. The connector piece I have had some problem with also the wiring...

37 of 60 found this helpful

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Presto PA

Great value and sound

August 6, 2012

Great sound and fits in a tight spot 2011 Chevy Silverodo under back seat extended cab. Love it.

30 of 52 found this helpful

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San Francisco, California


June 29, 2014

The KICKER 11HS8 Subwoofer is simply awesome. If you are not for shattering glass and vibrating loos your whole interior, but have a decent sub sound, if you don't want to spent a lot of money, then this box is just the right one for you. I have it in my 2001 F150 Harley Truck, and it fits perfectly between the center consoles on the floor. I did not regret a second since I have it fitted into my truck. I'd buy it again.

29 of 53 found this helpful

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2009 silverado single cab

September 9, 2013

I installed the HS8 expecting a small gain over the pathetic factory speakers.WOW! what a pleasant surprise.The base is awesome,I'm still using factory head unit and factory speakers...kudos to kicker.Very compact and you feel it through the seat!

25 of 45 found this helpful

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Burlingame, KS

Exactly what I was looking for

October 18, 2013

My Kicker sub was shipped promptly when my local car audio shop had it on back order. The sub installed easily under the back seat where space is extremely limited. The sound is good for such a small product, and having the amp included in the enclosure is very convenient.

24 of 46 found this helpful

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Decent bass for small box

August 4, 2013

I bought a 2011 Ford f-150 in February 2013. The radio was the sync system / non-Sony. The door speakers were the cheap paper cone jobs, and bass was pitiful. I knew I would replace the door speakers (picked up some infinity kappa), but I didn't know what I wanted to do for bass. I've had some custom made boxes in the past, but I wanted to preserve the majority of my empty floorboard in the back (the rear seat folds up, and I can use the rear area as a large interior trunk). I also didn't want the time or expense of building a custom box.

I know I could have gotten "better sound" from doing a larger / custom box, but I'm at a stage in my life where time is valuable, and there is such a thing as "good enough". Lets be real. This is a truck, not a living room with Wilson Audio or Martin Logan fronts, conditioned power, acoustic dampening, and oxygen-free speaker wire. It's a freakin truck.

I wanted something to round out the low end, keep up with the factory system when I rode with the windows down, and generally make the factory system perform to a satisfactory level with minimal cost / time.

This sub did exactly that. It plays to maybe 40 Hz pretty powerfully. It does drop off below that, but there isn't a ton of music that really plays in that area. There are enough controls on the sub to match your existing needs well. The 40 Hz boost gives this a little more grunt.

I'm really very happy with the sound from this tiny box. If I need, I can pull it out in about 5 seconds due to the quick connect wiring harness. The 8" driver does a great job for what it is. I truly enjoy the sound from my upgraded stereo given my needs.

If you're looking for something to let the whole street know you're in the hood, look elsewhere. If you need some reinforcement in the low end for relatively loud listening, this is up your alley.

Btw, I listen to everything from country to hip hop to electronic. For my needs, this sub simply performs flawlessly. Couldn't be happier with the size, features, build quality, or bang for the buck.

26 of 50 found this helpful

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Melbourne, FL

Very surprising amount of bass from such a small package!

January 14, 2014

While you're not going to shake any windows with this, it certainly outputs a substantial amount of bass and is able to easily round out the bottom-end in any music genre. But obviously the key factor here is SIZE. This product fills a little ignored niche market for pickup truck owners. It's sad, but the majority of subwoofer "truck" boxes are still too big for a truck! The Kicker Hideaway can squeeze nearly anywhere. It fits behind nearly any rear cab seat, under nearly any rear cab seat, and even under some front seats!! I install these professionally and have had nothing but rave reviews from owners.

It comes with all the bells and whistles too. A remote bass knob, all the power/signal wiring, and a choice of two mounting styles; screwed down L-brackets or two removeable velcro straps.

Please PLEASE Kicker, never stop making this product. It sells itself from a fit/form aspect, but the performance is icing on the cake.

30 of 59 found this helpful

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Coeur D Alene, ID

Verified Purchase
Totally surprised and impressed

September 19, 2015

Installed this inside the back seat bottom of my '05 Wrangler LJ and it fires directly into the floor. It's just breaking in but sounds better and better. Look, it's an 8" with 150RMS in a very small enclosure so it can't reproduce every low note perfectly but it does an unbelievable job on most. Was going to go full custom JL 10TW3 with an HD900/5 at my installers recommendation but decided against it; when he got done installing my 2 NVX MVPA4's (so small he laughed) one powering the 4 tweeters and the other the 4 mids, 1 pair PolkMM5251 in my dash, 1 pair PolkMM521 in my sound bar, the HS8 in my rear seat, and the Pioneer DEH-80PRS running active, tuned and time aligned all he could say was WOW. This set-up works perfectly in a vehicle that's not even close to a perfect listening environment. I couldn't be happier.

0 of 0 found this helpful

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Great value and sound

August 31, 2012

Great value and once I had it installed it was the best thing for my stock radio in my 2011 silverado. Adjustable bass is great .Had it installed by best buy works great . love it and i would recommed it to anyone.

27 of 56 found this helpful

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very impressed

May 18, 2015

I have had this product installed in my vehicle for 2 months now. All I can say is that I am very impressed with the sound quality from this small sized subwoofer. Great quality and would recommend this product for sure. The guys at Sonic were great when I called for their support before placing my order.

10 of 24 found this helpful

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Hillsboro, TN

The perfect sub!

September 4, 2012

This is the perfect sub for anybody that has a small car and doesn't want to sacrifice space. I have a 2011 Nissan Versa with navigation system (the best audio option you can get in the Versa), and my system was lacking on all ends. After consulting the web and calling the guys at Sonic, I finally settled with the HS8. This sub fits perfectly under the passenger seat. I also loved that Kicker has given you all the wires that you will need for the install and the ability to run high level inputs to the amp.

With the sub under the passenger seat, I don't have to turn the bass knob to about 1/3 total gain. At 1/2 total gain, the bass is so overwhelming that is it awesome. Who knew that 150 watt RMS sub would produce this much bass.

I have this HS8 paired with a IX500.4 to run Kappa component and 3-way speakers. This is what the Nissan Versa needed.

The Sonic rep that I spoke to explained everything perfectly. Sonic is the place to buy car audio!

21 of 48 found this helpful

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Accessory Tools and Products

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Trunk Kit - 20 Square Feet of Sound Dampening Material (Five 18" x 32" Pieces)

Your Price $59.99

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20 ft. Trunk Kit with (5) Dynamat Extreme 18" x 32" Pieces

Your Price $94.95

Boom Mat Damping Material (050210)

20.8 sq.ft Damping Material - (10 pk - 12-1/2" x 24" x 2mm )

Your Price $109.99

Browse 2 questions and 4 answers
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Why did you choose this?
Sonic Electronix Store
Space in Wrangler
Longdrive on Aug 17, 2015
have used the same product before
Ted G on Nov 18, 2014
How many ohms does this speaker have?
wendykay77 on Jun 11, 2015
Best Answer: Hello Wendy,

This Subwoofer is powered, which means there is an amplifier built into it, which then means the need for knowing the impedance is moot. This is why the neither us or the manufacture provides that specification, because there is no need to actually know it as you cannot match this with anything that requires the spec. If you absolutely Must know, then we suggest contacting the manufacture.
Reply · Report · Rick MStaff on Jun 11, 2015
· Add Answer · I Have This Question Too (0)

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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 11HS8 (HS8)