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Kenwood KSC-SW11 Compact powered subwoofer

Item # 113KSCSW11

Kenwood's KSC-SW11 powered subwoofer might look small, but it delivers impressive bass.

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Kenwood's KSC-SW11 powered subwoofer might look small, but it delivers impressive bass.

Item # 113KSCSW11

Shop all Kenwood Powered Subwoofers

About the Kenwood KSC-SW11

John Pollard

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.

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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Product 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
  • MFR # KSC-SW11

What's in the box:

  • 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

Customer reviews for Kenwood KSC-SW11

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4.5 out of 5 stars
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More details on the Kenwood KSC-SW11

Pat M.

Features & specs

General
Enclosure Type Sealed
Finish Material Metal/Plastic
Grille Metal
Connector Type RCA, Molex
Quick-disconnect Plug Yes
Bi-amp Inputs No
Woofer Size (inches) 5x8
Woofer Material N/A
Passive Radiator ---
Width 11"
Height 2-3/4"
Depth 7-1/2"
Parts Warranty 1 Year
Labor Warranty 1 Year
Specifications
Frequency Response 35-125
Amplifier Power (RMS) 75 watts
Maximum Wattage 150 watts
Sensitivity 110 dB
Impedance ---
Second Voice Coil Impedance ---
Crossover Point 50-125

Product Research

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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Customer Q&A

33 questions already asked

Q
I have a Kenwood DDX5707S receiver installed in my car. If I installed a Kenwood KSC-SW11 subwoofer and plugged it into the rear of the receiver would it be powered up and not need anymore connections? I am looking for the easiest way to go.
sheffard  Jan 18, 2023
1 answer
A
You will also need a power connection to your battery and a ground connection to the chassis of the vehicle. There will also be an accessory/remote wire connection from the radio to the subwoofer. This would generally be the case for any powered subwoofer.
zachary  Jan 18, 2023 (Staff)
Q
Installing Kenwood KSC-SW11 in my bosses 2015 silverado soon. It has the bose premium sound system in it now. Is there a sub outlet for rca's or will I have to splice into factory speaker wire?
jimmy  Jan 15, 2023
1 answer
A
This vehicle's factory radio/amplifier will not have a subwoofer RCA outlet. It will be necessary to splice into factory speaker wires.
zachary  Jan 15, 2023 (Staff)
Q
My car's cigarette lighter 12v output turns off when I switch the car off. Can I hooked both the subwoofer power and remote on to the cigarette lighter 12+, subwoofer ground to cigarette lighter GND?
clement  Mar 17, 2022
3 answers
A
The subwoofer should be fine as long as it doesn't draw more amps than the lighter circuit
chris  Mar 24, 2022
A
I don't recommend that. The sub amp needs an always-on 12volt source and a good ground. The switched power gives a soft start when the ignition comes on (separate from main 12v power) you don't spike the amp when turning it on. Cigarette lighter plugs are ok for phones and gps but I vote no for use on sub amps. I ran a dedicated power wire all the way to the battery and switched power and ground are tapped into the wiring harness behind the dash unit. If in doubt watch a pro video run some wire and do splicing. Good luck and enjoy the sub.
john  Mar 19, 2022
A
The cigarette lighter is not sufficient power for the amp. You should use a 14 awg gauge or better otherwise the amp will cut off on you. The remote signal should come off of the head unit but while it is not recommended you "could" use the cig 12v source to power that. But it would always be on and you will hear it come on every time you start the car (makes an electric thud). Ground can be anything metal on the body of the car near where you are placing the kenwood unit. So you will minimally need a dedicated 12v to battery for main power and remote can "technically" be any switched 12v source.
marcial  Mar 19, 2022
Q
So, if I power this sub from a blank, switched circuit in my in cab fuse box, I should be able to connect the blue/white "Time to power on" wire to that circuit as well, correct?
bob  Aug 18, 2021
2 answers
A
One power source is the unswitched 12volt and the other is switched to turn it on. This allows unit to "soft start" and not spike or thump at turn on. Switched source and unswitched source should not be swapped or assumed that hooking them both to same 12volt source is a good idea.
john  Mar 19, 2022
A
It has been my experience that the remote connection is for exactly that. The later model stereos have remote out that will pulse a signal that turns amps on
william  Aug 18, 2021
Q
If I have two Kenwood units and tap one to the left rear and the other to my right rear stock speakers will I still need to use the supplied speaker cord for both L and R inputs on one unit?
heather  Jul 15, 2021
1 answer
A
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.
thomas  Jul 27, 2021 (Staff)
Q
What is needed to connect this to a factory 2018 Toyota Tacoma head unit?
john  Jan 13, 2021
1 answer
A
The simplest way to install this would be to tap its speaker level inputs into the stock wiring while other ways would use active line output converters or even sound processors to help clear up and fine tune the sound from it. I recommend contacting an advisor by calling 1-800-324-9695 to discuss your goals and get a personal recommendation on the necessary gear
jason  Jan 30, 2021 (Staff)
Q
Can I hook this to my rear speakers if they are on an amp? Does this add impedance to head unit?
brian  Aug 28, 2020
3 answers
A
The sub has line level and speaker level inputs. If you have a factory radio that uses an external amp you may need to connect the sub to the amp output, your speakers. If you have an aftermarket radio, using line level to the amp, I would use rca Y cables and connect the sub and amp at line level.
tony  Sep 02, 2020
A
I was unable to find input specifications for this unit so I don't know for certain but, it would be standard practice to make the audio inputs high impedance so as to not load down the car's power amp and continue to deliver that power directly to the speakers. Since the speaker leads in the car are themselves low impedance there is no need to have the audio inputs to the subwoofer shielded. Hooking it up to the rear speakers should be fine as long as the program material in them is the same as the front i.e you are not running a 5.1 surround sound system. If you are doing something special and using the rear speakers as "effects" then you'll need to hook the audio inputs to the front speakers.
frank a  Aug 31, 2020
A
The input impedance of this unit is so high it does not affect your head unit.
daniel  Aug 28, 2020
Q
Will the Kenwood KSC-SW11 Compact powered subwoofer it under the front driver seat of my 2019 Nissan Frontier SV crewcab?
ted  Aug 21, 2020
2 answers
A
I put mine under the passenger seat of my Tacoma without too much drama but always check to make sure the seat clears to slide back and forth without catching. I had to raise my seats up slightly to clear.
john  Mar 19, 2022
A
Mine fits just right under the drivers bucket seat on an '03 Ford Ranger.
herman  Aug 21, 2020
Q
Would this work on a Kawasaki Voyager?
brian  Jun 14, 2020
1 answer
A
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.
thomas  Jun 30, 2020 (Staff)
Q
I have a 2016 gmc dually denali...has the bose system. How will this connect to the head unit?
greg  Jun 12, 2020
1 answer
A
This can connect to the stock system in your vehicle by using tap connectors to connect its speaker level input cable to the stock speaker wire. Here's the tap connectors: www.crutchfield.com/p_669PP605/item.html
jason  Jun 30, 2020 (Staff)
Q
What is the best way to install in a 2012 F150 XLT Extended cab for an amateur? Wanting to install under rear seat but wanting to keep it factory appearing
michael  Apr 22, 2020
2 answers
A
Have the people at Crutchfield make the wiring harness for you that you need. Tell a product advisor what you want to do, and they will help you do it. I never installed one of these before putting it in my 2007 Vette, and I ran into a couple of questions, and they helped me right over the phone. No problem. Went smooth as glass. Sounds great.
marcus  Apr 22, 2020
A
I'm not sure what your question is. If it fits under the seat it should be pretty much out of sight and not affect the appearance. Be sure that there is some clearance between the speaker and the seat, though.
randall  Apr 22, 2020
Q
Does this have a crossover that will limit the frequency sent to the speakers? i.e. all frequency under say 150hz is handled by the sub then the upper frequencies sent to the speakers?
chris  Jun 25, 2019
3 answers
A
The sub's remote allows adjustment of low pass with a range of 50-125. This does not affect the frequencies delivered to other speakers. You would need to do that separately. In my application, I've used my head unit to adjust the frequencies that it delivers from all sources and then adjust the sub for both frequency and volume. That has worked well for me.
bob  Jun 25, 2019
A
No. The sub has no output, so you would need an external crossover or bass blocker for the speakers.
randall  Jun 25, 2019
A
Chris, I honestly don't know thr answer to your question. A Crutchfield technician would be better versed in explaining that aspect of this product. What I can tell you is that I absolutely love the performance of this powered sub-woofer in my car, which is a 54-year-old British two seat roadster, a Triumph TR4A. Mounted vertically directly behind the drivers seat, it gives me such a jolt in the back that not only do I feel it, but I can clearly hear bass notes even at 70 mph with the top down! Getting that kind of sound in such a small package is practically unheard of. Hope that helps.
robert  Jun 25, 2019
Q
Will this Subwoofer sound well if I install it in the trunk or it has to be under the seat to perform better?
gerard  May 31, 2019
3 answers
A
Under seat install is much better than trunk.
thomas  Jun 03, 2019
A
It is not very loud. I am using it in a Chevy Colorado, with the Bose system. It does add some lower bass than the factory system but is barely audible. In my opinion it would not be heard in a trunk.
scott  Jun 02, 2019
A
Not sure what vehicle you have, but for what this product is, it will do better in the passenger compartment. Personally i do not believe it has enough power to be in a trunk. Mine is under back seat in a pickup and does really well.
robert  May 31, 2019
Q
I own a Kenwood Excelon DNX893S. Do I need to buy any extra wires to connect the two or does everything needed come with the sub? Thanks....
tyler  Aug 14, 2017
4 answers
A
It comes with long cables terminated for the sub, yes...but ...you are likely to need an adaptor to get from whatever output plugs there are on the head radio unit you have, or in my case we soldered the correct ends onto it.
stephen  Aug 14, 2017
A
If I remember correctly. Everything you need should come with the sub. I do not remember having to buy any extra for it.
jerrod  Aug 14, 2017
A
You'll need RCA cables between your head unit and the sub.
anthony  Aug 14, 2017
A
I bought 2 of these, 1 for myself, and 1 for my daughter.mine I wired using the line level speaker wires, and they come included. If wiring this method, it will have all you need. Now hers was going to be hooked up to the head unit with the RCA sub out, and I purchased her a set of monster cable RCA cables, which were not included. Length will be determined by where you place the sub, etc, but to use your RCA sub out, I would get a set of patch cables. Hope this helps, and we both love our subs.
robert  Aug 14, 2017
Q
How much clearance does the unit need so that the sound can properly exit the sub ? The unit is 2.75 inches and I only have 3.25 inches clearance under my seat, leaving the sub only one half inch for the bass to be produced.
curtis  Aug 09, 2017
3 answers
A
I think you should be okay with less than an inch of clearance since a lot of the base comes from the case against the frame of the car. This is meant to go in a small space. I have really liked this unit.
john w.  Aug 12, 2017
A
As long as the Unit fits under your seat it should be fine. The speaker is slightly recessed inside the box as it is.
jason  Aug 11, 2017
A
I had even less clearance and it sounds great.
chris  Aug 09, 2017
Q
hi my unit is 2 months old and now it has stopped working? no power light on the remote controll and no sound. everything is conected correctly and the fuse is not blown . any ideas????
charles  May 18, 2017
1 answer
A
If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings/connections on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer, or try our online support center: http://crutchfield.custhelp.com/app/answers/list/kw/.
kenneth  May 19, 2017 (Staff)
Q
Is the unit's built-in amp a class-D amplifier (PWM)?
stephen  Mar 17, 2017
1 answer
A
I'm afraid the class of the built-in amplifier is not specified in our research or in the owner's manual. You may want to try reaching out to Kenwood directly for more info on that--their support number is 800-536-9663. If you would like to discuss further, feel free to contact an Advisor directly by phone (1-800-324-9695) or online chat.
david  Mar 28, 2017 (Staff)
Q
Anyone personally (not a shop, but you) install one of these in a MINI Cooper? I'd love to know how it went. If you've got snapshots, please share. Also, how's the sound in the cabin? Thanks!!!
evan  Jan 23, 2017
1 answer
A
not in a mini but 4 door f350, adds bass but not hard thump, we went with 2 units under rear seat for a little more, would recommend if not trying to rattle the windows, kicker in another truck seems a little deeper bass with same set up
chris  Jan 27, 2017
Q
What exactly plugs into the square speaker level input? I understand that it's the speaker wire coming from the head unit, but how does it connect to that square input on the unit itself? More importantly, is the necessary connector included?
chris  Aug 29, 2016
2 answers
A
Square plug is phone style RJ11/12. Kenwood amp comes with harness and instructions.
john  Mar 19, 2022
A
Hello. The two jacks are for an included wiring harness (your power and signal inputs) and the included remote control (looks like old style phone jack.) I have been happy with my unit. Very easy to move from car to car.
michael  Aug 29, 2016
Q
Can this be used to replace the pioneer subwoofer under the passenger seat of a 1999 Lexus RX300?
gp99rx300  Jun 03, 2016
1 answer
A
This is for all of the available compact subs, I would recommend to contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle, compare the different subs available and give you the details on if they will fit and what you will need for an installation in your vehicle.
kenneth  Jun 03, 2016 (Staff)
Q
Bith the power and the P. Cont (blue/white) cables have bullet connectors at the end. What size are they (gage) so i can buy the corrosponding connectors?
holly  May 23, 2016
1 answer
A
18-16 gauge on the remote turn-on lead and 12-14 on the power lead (as best we can tell as they do not provide the gauge specs in the manual.) You can also contact Kenwood directly for the definitive answer: 800-KENWOOD. I hope that helps! My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=5
ryan  May 24, 2016 (Staff)
Q
Where's the best place to mount this enclosure? Driver or passenger side?
samuel  Mar 08, 2016
2 answers
A
For details on installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on what you will need for an installation.
kenneth  Mar 08, 2016 (Staff)
A
This will depend largely on your vehicle. For details on installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on what you will need for an installation.
kenneth  Mar 08, 2016 (Staff)
Q
Can I use this powered sub in my 2011 Prius? I understand there are current draw restrictions on a Prius. I am planning to connect directly to the battery.
doug  Jan 24, 2016
1 answer
A
Absolutely. A moderately powered subwoofer will be fine. High powered multi-amp systems are definitely not recommended but the power draw from this single subwoofer will not be a problem. I hope that helps! My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=5
ryan  Jan 25, 2016 (Staff)
Q
Will the amp sense the signal to turn on?, "Remote turn on" I assume is what it's called
thomas j  Dec 14, 2015
4 answers
A
A rep at Crutchfield helped me hook the power to the sub using blade fuse adapters to the windshield wiper fuse. As soon as you start your car, or the key is in the on position, power is applied to the sub, and like wise removed when you turn the key off. This worked for my 2009 Ford Ranger but your car maybe wired differently, so be sure to ask for an installation tech (?). They're very friendly and knowledgeable. Hope this helps.
mike  Dec 16, 2015
A
Yes, just connect the blue wire.
michael  Dec 15, 2015
A
Yes, it does.
larry  Dec 14, 2015
A
I didn't install this myself but, after install the amp knew to turn itself on and off when the car was turned on and off. I'm assuming that's the responsability of one of the wires that comes with a standard wiring harness. Not sure about technical side of how to make that happen, but the answer is yes...the amp will do that if installed correctly.
tristan  Dec 14, 2015
Q
I'm currently running a 4 channel amp powering four 6.5" speakers at 70w RMS in my 2007 Sonata. I don't want insane bass, I just want a very balanced system all around for the best listening experience. Would one of these mounted under the seat provide that ideal sound, or would I not notice much of a difference because of the sound my speakers are providing? Thanks in advance for any help.
tyler  Nov 18, 2015
4 answers
A
I think it would work for you. It puts out a surprising amount of audible bass. I have it in a 2014 Spark EV and it will vibrate the rearview mirror. It makes the paltry 4" speakers in the car bearable. That said, the driver is small so don't expect it to thump like a 1000 watt 12" subwoffer in a large bandpass box. It will add some noticeable bass to your 6.5" speakers.
charles b  Nov 21, 2015
A
Tyler, Great question. I've bought two of these units, for different vehicles, so here's what I can tell you: I put the first one in my 2002 Ford Excursion. It noticeably increased and improved the bass. I too was not looking for a "thumper," but definitely an improvement over not having it. However, with a vehicle that big, I decided two of them would work better. Both were placed under the center seat. I was very pleased with the sound I got. Primarily listen to classic rock, some country and also some gospel/religious music. The latter being mostly live recordings. For all of the above, the sound was dramatically better than stock, but I replaced the head unit and all the stock pieces as well. I ended up selling that one in a moment of weakness and really miss my big SUV. I also have a 2003 Corvette coupe. I replaced the factory setup in it just recently. I used one of these subs mounted along the back wall of the luggage area. In a vehicle that size, one unit seems to be plenty enough. Again, I want to hear, and to a slight degree, feel the bass. But I did not want the thumping or vibration commonly heard amongst people half my age (or less). Overall, I'm very pleased with the product and found installation to be easy. Hope this helps!
paul d  Nov 20, 2015
A
Hey Tyler - I have a 2016 Santa Fe with a subwoofer under each front seat. This Kenwood is the best choice if you have limited space and need to fill that low end void. This particular unit is a bit on the "punchy" side, meaning it hits the mid-bass very well but struggles to find the very bottom of the frequency spectrum. That's a small gripe - this little guy definitely makes the music much more enjoyable and it's got a very handy remote control that should let you tune it to fit your taste. Good luck and enjoy!
william  Nov 19, 2015
A
I run a similar setup in a convertible with this powered subwoofer due to space constraints. It is mounted under the passenger seat. Even with the top down, I have found this unit provides ample bass to fill out lower frequencies that most amplified 6.5" speakers lack. It is fair to describe the sound quality as balanced, but there are certainly more expensive units that perform better. Overall, it is excellent value for tight applications or cabin fill.
robert  Nov 19, 2015
Q
Aftermarket amplifiers will sometimes require a new, larger battery to be installed in the vehicle. Would one be recommended for this powered enclosure?
david  Aug 06, 2015
3 answers
A
No, not with this one. I installed this amp/sub in my 2014 Ford Focus and no battery modification was needed. I forget the wattage of the amp, but relative to many amps it was quite small. This amp/sub combo is one of the best compact, and low-power amp/subs available. The bass it puts out is tight and punchy...very little boom or rumble...yet you disn't ask about it so I won't ramble on about all that.
tristan  Aug 08, 2015
A
Personally, I've never heard or seen of a recommendation to increase battery capacity for any aftermarket components. Batteries are used to start the vehicle. Once it is running, power comes from the alternator. The only problem with the battery is if the alternator goes bad, subsequently not providing enough charge to power all accessories, run the vehicle and recharge the battery, you will eventually exhaust the battery. Having said that, I have one of these in a Ford Excursion diesel. You'd never see the impact on that vehicle in terms of electricity. I put the newest one in my Corvette, no problems. I have different components but with the same power draw installed in my HD Ultra Classic, no problems. So, if a motorcycle can handle the power requirements of these pieces, I cannot see why any car would have a problem with this unit. Remember, this sub will enhance bass output and definitely improve the sound of music in your vehicle. However, this isn't going to produce the obnoxious thundering booms so many kids do these days. But it will definitely enhance my classic rock music collection and really wakes up "Dazed and Confused."
paul d  Aug 07, 2015
A
Not required!
larry  Aug 07, 2015
Q
Does this come with the wiring needed power rca?
robert  Jul 14, 2015
5 answers
A
I had to buy my own RCA cables
viren  Jul 14, 2015
A
rca?it comes with alot of different wires
rollin  Jul 14, 2015
A
The 10-pin connector cord (5m/16ft) has power and speaker input. RCA cable can be connected to 10-pin connector. A RCA cable is not included.
keith  Jul 14, 2015
A
Yes
ronda  Jul 14, 2015
A
the unit has female rca connectors..
wiley james  Jul 14, 2015
Q
Would I need to secure the subwoofer in any way under the seat? It seems it would be prone to sliding around.
rob  Jun 03, 2015
11 answers
A
Mine fit snugly and does not move around at all, owning to a nice well under the passenger seat
stephen  Aug 14, 2017
A
I didn't screw down just put coarse side of velcro on bottom of sub
rollin  Jun 04, 2015
A
Yes I would secure it. I installed this in a jeep wrangler and I actually used adhesive velcro strips as I wanted to be able to remove or move the subwoofer as there is very little trunk space. The Velcro works greats and gives me good flexibility when I need to use the trunk. The unit comes with brackets and can also be secured with screws but the velcro I used certainly is strong enough to retain the unit. Hope this helps.
paul v  Jun 04, 2015
A
My husband put mine in the trunk, up against the rear seat without any method of securing it. I have a Cadillac CTS and haven't had any issues with the subwoofer sliding, or shifting.
marci k  Jun 04, 2015
A
Hi Rob, Yes, securing the subwoofer would be advisable. Mounting hardware is included and it is easy to do.
alfred  Jun 04, 2015
A
Yes, definitely. It's a potential safety hazard if a subwoofer is not secured to the vehicle. You will need to screw the unit into the carpet either under your seat or in another location of your choosing. The Kenwood KSC-SW11 comes with the screws.
david  Jun 04, 2015
A
Velcro tape strips worked great
viren  Jun 04, 2015
A
You want to secure it as well as possible for both sliding and more importantly, sound. Subwoofers that are not mounted properly will disperse the sound waves into distortion which gives you no chance at good bass. This little guy, when mounted properly under the seat, gives a nice punch when it's tuned correctly. It's not going to get to the very low notes - need a larger enclosure for that. But it certainly fills the gaping hole in bass that the factory speakers simply can't fill. I would recommend this product to anyone who has a tight space to work with and it's a good value for the price. FYI - I'm a former national "crank it up" champion so this advise isn't coming from just any random customer. Good luck!
william  Jun 04, 2015
A
In a 2006 Camry XLE, there was no need to secure the subwoofer because it was such a tight fit that I had to remove the seat, set the subwoofer in place, then bolt the seat back over the subwoofer with the steel crossmembers of the seat pressing against the subwoofer housing. There is almost no way for it to slide around under there. All that said, if the seat was not physically pressing against the subwoofer, I would have secured it with straps because I think it is light enough and the bottom is not rough or "grippy" enough to stay in place under heavy acceleration/cornering/braking without sliding around under the seat. Not asked, but opinion offered here: great sound, especially for the price. We are very happy with our purchase.
autumn  Jun 04, 2015
A
Really depends on the application. I have mine located under the front passenger seat - there is no rear seat to speak of so the unit does not slide around and I do not have it fastened down. If you have lots of room under a seat or are placing it in the rear cargo area of a SUV, etc. you probably will want to fasten it. See page six of the owners manual - you can find it on the Crutchfield website in the "details" section.
john b  Jun 04, 2015
A
It has two slotted brackets that hold it to the floorboard of your vehicle. Normally there is sufficient room underneath the seat and I highly recommended putting it under the driver seat.
steven  Jun 04, 2015
Q
Can this sub be installed in a vw passat 2014? Any instructions on how to install it in that specific make and model?
donald  May 29, 2015
1 answer
A
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.
jeff  May 29, 2015 (Staff)
Q
Can I hook this up to the one of the speaker outputs on the Boss mc470b?
teddy  Mar 05, 2015
1 answer
A
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your gear. They will be able to pull up the Boss 470 and see if this will integrate. If it does not, then they will also be able to discuss other options with you.
jeff  Mar 06, 2015 (Staff)
Q
Do I need to use the remote control if my head unit has subwoofer controls built in? Would setting the unit to max volume on the head unit be the same as doing so on the remote control?
glen s.  Jan 23, 2015
6 answers
A
Yes, you need the remote to fine tune the crossover, as well as the volume. It's actually quite handy.
stephen  Aug 14, 2017
A
According to page 7 in the Kenwood instruction manual the KSC-SW11 will work without the remote connected. Text from page 7: "The sound is output even when the remote control unit is not connected, but the operations described in this section are not available. In this case, the volume, cut-off frequency and phase are set to the predetermined default conditions, with which the cut-off frequency is 125 Hz and the phase is 0º (positive)."
(unknown)  Feb 05, 2015
A
I just set the unit controls to a mid range, and then use the head unit controls to adjust. I think that you need the unit controls set at something, and the head only adjusts from zero to that setting. I like it, it is in the cab of a diesel puller motor home, and it makes all the difference.
scott  Jan 26, 2015
A
I would think what you are suggesting would work but one thing to consider, it is much easier to fine tune your subwoofer from the hand held remote that going into the features on the deck. I did the same thing on my home audio system. I turned off my subwoofer controls on my receiver and did all my fine turning on the subwoofer itself. Using the hand held remote lets you dial in the cross over and volume very easily while listening to the music to optimize your sound and lets you make small corrections as needed to make it perfect. I wired mine to the center console in my truck. Out of the way but always in hands reach when I need it. Dean
dean c  Jan 25, 2015
A
I use the remote as it provides quick and easy adjustments, use two sided tape to mount it
stephen m  Jan 25, 2015
A
Obviously different head units have different controls. Mine is mated to a Kenwood head unit with both tone controls and an equalizer. However, there are additional adjustments to the subwoofer that only the remote allows you to do. Specifically, you can adjust the volume to get the desired level of bass without resetting your head unit. In my case 95% of what I listen to are CDs copied to a USB drive. Sound levels vary from disc to disc, as do bass levels. Having the remote at my fingertips enables me to adjust as desired. Another benefit of having the remote visible is this: my head unit has one in line fuse. However, it became necessary to add extra in-line fuses, acting as a relay, between the subwoofer, amplifier and head unit. When one of those relays (fuses) blows, the remote control for the sub doesn't light up. That makes diagnosis easy, as well as the fix. In my case, I found that there is sufficient fluctuation in my truck's power output to warrant adding those fused relays. Better safe than sorry. Easy to do and cheap protection. Hopefully this answers your question. I say use the remote and install it in an easily accessible location. Mine is attached to the console on my Excursion, next to the drivers seat. That works great for me. Good luck and enjoy your new stereo! PDR
paul d  Jan 24, 2015
Q
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
A
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
A
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  Feb 08, 2014 (Staff)
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