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Kenwood KSC-SW11

Compact powered subwoofer (New stock)

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  • Kenwood KSC-SW11

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  • Kenwood KSC-SW11

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  • Kenwood KSC-SW11

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Our take on the Kenwood KSC-SW11

by John Pollard
Kenwood

Who needs a powered subwoofer?

To produce bass, you need a sub, an enclosure, and an amplifier, and it can be little tricky to match them all up. A powered sub eliminates all the hassle, as the manufacturer designs the enclosure to house the sub and amp together. This all-in-one solution is especially useful in smaller vehicles, where there's no room to mount a separate amp, or in any vehicle where you need every bit of cargo space. Powered subs range from small, flat boxes that fit under your seat to larger boxes that go in your trunk.

Big bass in a compact package

Kenwood's KSC-SW11 powered subwoofer might look small, but it delivers impressive bass. This little powerhouse will fit under a seat in most vehicles, where it'll produce low-frequency response equal to that of a larger subwoofer in your trunk. It offers a great solution for those who want to reinforce the bass in their system without taking up a lot of space.

Kenwood KSC-11 compact powered subwoofer

This tiny powered subwoofer can fit in many tight spaces.

Big woofer, rigid chassis

Kenwood gives you the biggest bang possible by stuffing an 8-1/4" x 5-1/8" woofer into this enclosure. The rigid aluminum enclosure eliminates rattles, while the durable built-in amplifier feeds the speaker 75 watts RMS. Kenwood throws in a wired remote, so you can control the bass from the driver's seat. A wiring harness and mounting brackets are also included.

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Highlights:

  • compact powered subwoofer
  • aluminum enclosure with 8-1/4" x 5-1/8" sub
  • built-in amplifier: 75 watts RMS power (150 watts maximum)
  • wired remote for control over:
    • volume level
    • variable low-pass crossover (50-125 Hz)
    • selectable phase control (0°, 180°)
  • power/ground wiring harness
  • preamp- (RCA) and speaker-level inputs
  • frequency response: 35-125 Hz
  • dimensions: 11"W x 2-3/4"H x 7-1/2"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
General
Enclosure Type
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Sealed
Finish Material
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Metal/Plastic
Grille
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Metal
Connector Type
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RCA, Molex
Bi-amp Inputs
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No
Woofer Size (inches)
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8.25x5
Woofer Material
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N/A
Passive Radiator
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---
Width
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11"
Height
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2-3/4"
Depth
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7-1/2"
Second Depth
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N/A
Parts Warranty
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1 Year
Labor Warranty
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1 Year
Specifications
Frequency Response
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35-125
Amplifier Power (RMS)
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75 watts
Maximum Wattage
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150 watts
Sensitivity
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110 dB
Impedance
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---
Second Voice Coil Impedance
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---
Crossover Point
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50-125
Product Research
What's in the box?

Download owner's manual

  • Powered subwoofer
  • Wired remote control with attached 16.4' cord (has 6-conductor RJ-25 plug on the end)
  • 14' Speaker-level input cable (male stereo RCA jacks on one end and speaker wire with bullet connectors on the other)
  • 16.4' Power harness
  • Cable security bar
  • Adhesive backed hook and loop fastener (1-1/2" x 7/8")
  • 2 Mounting brackets
  • Four 5/8" Self-tapping screws
  • Four M4 x 6mm Machine screws
  • Two M3 x 8mm Machine screws
  • Instruction manual (English/ French/ German/ Dutch/ Italian/ Spanish/ Portuguese/ Russian)
  • Warranty information

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.

Features

Product Overview: The KSC-SW11 amplified subwoofer features a built-in amp (75 watts RMS, 150 watts peak) and an oval woofer (8-1/4" x 5-1/8"), housed in a rugged, compact enclosure.

Wired Remote Control: The wired remote control provides fingertip control over your low frequencies. You can adjust the volume and crossover point (50-125 Hz), plus switch the phase from 0° to 180°. The remote control can be mounted using the supplied adhesive hook and loop fastener. The sub can be used without the remote, but the volume, crossover point, and phase will all revert to the default values.

Note: There are no controls on the subwoofer.

Mounting Options: The brackets can be mounted to either the sides or the ends of the enclosure. They add approximately 1-1/8" to the width or length, and 1/8" to the height.

Signal Input: The female RCA inputs on the included harness can be used with a line level or speaker level signal. A 14' speaker-level input extension cable is also included (male stereo RCA jacks on one end and speaker wire with bullet connectors on the other).

Wiring Harness: The included wiring harness covers power, ground, remote turn-on, and signal input. The wire length varies by function:

  • Ground: 58"
  • Signal Input: 26" (terminated with female RCA jacks)
  • Power: 16.4'
  • Remote Turn-on: 16.4'
 
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Kenwood KSC-SW11 Reviews

Average Customer Review:

17 people say:

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Filter by rating:
5 out of 5

Small sub for small car

Written By Ed M., Loveland on Thursday, August 07, 2014
Crutchfield Customer Review (What's this?)
 
Love this little sub, compact and easy to work with. Plenty of sound for a convertible with the top down as well as top up.
Pros:
Compact, great low end, easy to install, on the fly adjustemnt.
Cons:
Bolt down screws long quite long enough to reach through carpet and basemat.
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5 out of 5

great little subwoofer

Written By james mc, tallahassee, fl on Thursday, June 26, 2014
Crutchfield Customer Review (What's this?)
 
i installed this unit in my mazda Miata. plenty of lower end in such a small cabin. managed to get it under the passenger seat.
Pros:
lots of sound for the price. easy to install.
1 out of 1 people found this helpful
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5 out of 5

Kenwood KSC-SW11

Written By Anonymous, Vernal, UT on Tuesday, June 10, 2014
Crutchfield Customer Review (What's this?)
 
This was exactly what I was looking for. Big sound in a small package. Very happy with this item.
Pros:
Compact, Sounds Great
Cons:
Maybe different mounting options
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5 out of 5

Kenwood KSC-SW11 Powered Subwoofer

Written By David C., Lafayette, Colorado, USA on Saturday, May 31, 2014
Crutchfield Customer Review (What's this?)
 
This little powered sub packs a lot of bass into a small package. I was not looking to rattle the windows, but you can definitely feel the music if you crank this up. It makes for a much more enjoyable listening experience for a variety of music styles at any volume level. This was easy to install, about at the same difficulty level as putting in a new head unit. The great thing about this compared with other powered subs is its smaller size without sacrificing sound quality, and the ability to attach the power line to your internal fuse box rather than going through the firewall to connect directly to the battery. I originally intended this to go underneath the drivers seat in my 1997 Honda CR-V but it did not quite fit there - the wire on the seat adjustment lever sits too low to fit this underneath. So, I installed it on the floor in between the two front seats and just in front of the center dash console. Kind of unusual to put a sub in that spot where it's visible in the front of the vehicle, but it sounds great to me and that was the best spot for it in a CR-V. I definitely recommend this subwoofer - you won't go wrong if you're looking to punch up the bass in a compact, affordable package.
Pros:
Straightforward installation, you can attach power line to internal fuse box rather than going through firewall to battery, great bass response for a small package.
Cons:
Did not fit under my seat in 1997 Honda CR-V - wire for seat adjustment sits too low.
1 out of 1 people found this helpful
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4 out of 5

Sounded great in my wrangler.

Written By Brian, Granbury, Texas on Monday, May 26, 2014
 
Easy to install, sounded great till it died. Just bought another one from a different vendor, as it was cheaper. No complaints about Crutchfield... They did a good job of getting it to me.
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4 out of 5

exceeds expectations!

Written By wolf, pittsburgh on Monday, May 05, 2014
Crutchfield Customer Review (What's this?)
 
I installed this in a subaru legacy after adding component speakers, a 50x4 watt rms amp, and door dampeners. Most other under seats were too large. I expected the small size to offer little bass, but it offers plenty. It won't shake your whole ride, but it's more than enough bump for rock/metal/country/classical/etc. with the gain at 50%.

The build is sturdy metal, and it comes with enough cable to mount the unit in a trunk or SUV bed. Fuse is included. Power is supplied from your fuse box, rather than batter directly.
Pros:
Sturdy, lows are clean and loud. Remote control is nice. Mounted it next to my seat. I do a lot of on the fly adjustments. I'd probably go crazy without it.
Cons:
This "fills out" sound. If you want huge bass for hiphop/bounce/etc, this will flub out on you. I tried pushing it in that direction for fun. Won't be trying it again.
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5 out of 5

Kenwood KSC-SW11

Written By Rebecca, Hamptonville, NC on Wednesday, April 09, 2014
Crutchfield Customer Review (What's this?)
 
The sub is a good deal for the price and for what it is. But personally I didnt think it was enough bass so I bought another one to put under the passenger seat. So with the two of them it sounds decent. I did not want a box in my trunk area of my SUV taking up any space, so this was my best option.
Pros:
Can fit under my seats, not too expensive, sounds decent for how small it is
1 out of 1 people found this helpful
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5 out of 5

Nice adder

Written By Jeff, New Orleans on Saturday, March 29, 2014
Crutchfield Customer Review (What's this?)
 
Probably did need this sub but I'm glad I found it and purchased it. Compact, clean install, and really tight bass and sound pressure level.
Pros:
Small and clean and powerful
Cons:
cant think of any cons
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5 out of 5

Sounds great and takes up almost no room

Written By frank, Fort Worth,TX on Monday, March 17, 2014
Crutchfield Customer Review (What's this?)
 
This is very close to the smallest i have found for my Ranger single cab, This thing puts out more bass than i need in the small cab, it was also super easy to install, took about 3 hours to install it (pulled carpet and seat to get the clean "factory" install look,) very happy with the outcome. I dont know if i would put it in a trunk but would use one in a larger truck no problem.
Pros:
Super Small, insalled easy, and puts down plenty of bass in small space
Cons:
Not enough bass for every vehicle or air space but beyond enough for small areas
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5 out of 5

Good Thump

Written By TerryG, Oklahoma on Saturday, February 08, 2014
Crutchfield Customer Review (What's this?)
 
Easy to install. Its my first sub and its a very nice compliment to my system. It wont break windows but the sound is great.
Pros:
easy to install, great sound.
Cons:
Dont expect it to annoy people at stoplights.
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5 out of 5

Kenwood KSC-SW11

Written By John H., Fleming Island, FL on Tuesday, December 17, 2013
Crutchfield Customer Review (What's this?)
 
I am using this in a 2000 Porsche 911 Cabriolet. Bought specifically for the small size - I have paired it with a Kenwood DDX370 DVD head unit and I am using the stock speakers. It sounds great. The remote allows me to adjust the base easily depending on if the top is up or down.
Pros:
Compact size - good sound in a small interior.
Cons:
None
3 out of 3 people found this helpful
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5 out of 5

Great powered sub

Written By Tomer, San Jose, CA on Monday, December 09, 2013
 
I had installed a new Sony Mex-3100p and some speakers in a 2011 Rav4. It sounded pretty muddy. I then added the Kenwood KSC-SW11 and removed the low frequency sounds from the door speakers and now the stereo sounds fantastic.
Pros:
Small- fits under back seat. Great sound.
Cons:
Needed to buy additional 16 gauge and 12 gauge wire to reach the sub under the back seat. Need to buy separate RCA cables (I my case 16 feet long)
1 out of 1 people found this helpful
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5 out of 5

Big in a small place

Written By DP, Carson City, NV on Tuesday, October 15, 2013
Crutchfield Customer Review (What's this?)
 
Fresh install, so ask me in a year. However, I had a challenge - get some bass into a very small, high-performance Italian super-car with little space for such things. I might have used the Sound Ordnance box, but it was too wide. This Kenwood fit the bill for size, so it was in. Hooked up with provided parts and cables. Lit up and filled up the car on the first try. I'm not expecting, nor did I want, a big thumper. This car will be playing a wide range of music favored by those of us that grew up on the 60's and 70's, and this unit has made that possible.
Pros:
Small size, very well constructed, optional input choices, complete kit, remote control includes volume, cutoff, and reverse polarity switch
Cons:
The remote control has the cable entering from the bottom. For my application I brought the control into a tiny glove box, meaning that the control is upside down to the operator. No biggie, as it's bog simple, and once set is unlikely to be fiddled with.
4 out of 4 people found this helpful
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4 out of 5

Kenwood KSC-SW11

Written By bill, rapid city S.D. on Thursday, October 10, 2013
Crutchfield Customer Review (What's this?)
 
bought the kdc sw11 powered amp and the kdc x997 head unit both by Kenwwood and am very pleased with both. The clairity is amazing and this is with the stock speakers.going to change to new speakers and will then decide if i need en external amp
3 out of 3 people found this helpful
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4 out of 5

Great compact sub

Written By lawgibbs, Bakersfield, CA on Thursday, July 25, 2013
Crutchfield Customer Review (What's this?)
 
Wonderful and compact self-powered sub is just what you need to add that bass to your music. This amp is fantastic unless you are a hip-hop fan and want it to overpower the music completely. Provides great low end to all forms of music.
3 out of 3 people found this helpful
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5 out of 5

Amazed I Could Hear This

Written By lrapturel, Indianapolis on Saturday, May 11, 2013
 
Very impressed with the bass out of this because when I took it out of the box I realized just how small this thing is. I was thinking I was barley going to hear it but I was shocked. Don't get me wrong, I had to turn it up all the way to get good bass but I was impressed. The car was a hatchback and we just set it in the back.
Pros:
Great bass.
Cons:
A little more power would be nice.
4 out of 4 people found this helpful
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4 out of 5

Great sound in a small package

Written By Mark, Indianapolis IN on Saturday, April 27, 2013
 
I have been very satisfied with the sound quality and its small size is a big plus. You will need some bullet connectors to tie into the power on wire. You will also need the bullet connectors and some way to connect to your battery. I was able to fine everything I needed at autozone. It does not come with RCA wires but it will tie into your speaker wires if you go that way. All in all a great way to finish off your aftermarket set up or your sub par factory set up.
Pros:
Small size, great sound, easy hook up to the sub, and remote for easy adjusting
Cons:
Will need to get some hardware and RCA cables.
4 out of 4 people found this helpful
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1 question already asked

Can someone explain the 'Phase' on the remote ? Also if I turn up both volume and frequency to max, will it blow? Or does it depend what it's running with ? [ Jonathan  Feb 07, 2014 ]
2 answers
  • You to adjust this setting. Volume affects only the volume of the subwoofer. Frequency adjusts the crossover only, it has nothing to do with volume. There is no "max" for frequency, that only sets the wavelength of notes that come from the sub versus other speakers in the vehicle. [ PAUL D   Feb 09, 2014 ]
  • We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question. [ Jeff Staff  Feb 08, 2014 ]

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For a more in-depth review and enhanced detailed information on the Kenwood KSC-SW11, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_113KSCSW11/Kenwood-KSC-SW11.html ).