Craving bass but strapped for space? Put JVC's CS-BB2 compact powered subwoofer to work in your car. This self-contained bass solution will do wonders for your sonic experience even when you've got little room to spare.

The slim silver and black cabinet houses a 6" subwoofer and a conservatively-rated 32 watts RMS x 2 amplifier. The cabinet measures in at a mere 2-1/2" high, making it ideal for mounting under a car seat, or on the back wall of a pickup truck cab. A low-pass filter tailors the bass output to enhance your music, while the included wired volume control gives you fingertip control of the bass volume.

Speaker- and preamp-level inputs allow you to hook the CS-BB2 to almost any car system. A power and connection harness is included.

Product Highlights:

  • compact powered subwoofer
  • 6" dual voice coil woofer
  • 32 watts RMS x 2 amplifier
  • CEA-2006 compliant amplifier section
  • wired volume control with 9.8' cable
  • low-pass crossover (110 Hz, 12 dB per octave)
  • phase control
  • frequency response: 20-200 Hz
  • preamp- and speaker-level inputs
  • 9.8' power cable with 10-amp inline fuse included
  • dimensions: 11-5/8"W x 2-1/2"H x 7-7/8"D
  • warranty: 1 year
  • Our 60-day money-back guarantee

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.

JVC CS-BB2 Reviews

Average Customer Review:

38 reviews
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Great Compact Subwoofer

Written By Tom, San Antonio, Tx on Tuesday, September 15, 2009

I recently purchased the JVC CS-BB2 and am very happy with it. It is very compact and fits under my flipdown drink holder in my dodge Ram 1500. The mounting location made the install a snap and the sound is not ditorted by being under the seats. I connected it to my Sony head unit and removed the remote control as my headunit controls it better thru my subwoofer rca outputs.

I did have to adjust my low pass filter to 80htz and my high pass filter to 80htz (for my infinity door speakers) to make the system sound incredible. This is truly a great product and completes my sound system for very crisp, clear and clean sounding music.

Just what I needed!

Written By Steve, Eldorado, IL on Thursday, November 08, 2007

Crutchfield Customer Review (What's this?)

I just needed bass to complete the sound, and this little sub did the trick. I installed it under the passenger seat of my 1999 Toyota Tacoma and it will produce more bass than needed. Well worth the money and time spent installing.


Written By lunchbox660, sunny california on Wednesday, November 07, 2007

I recently purchased two of these little beauties to fill in the lower end freqs for my car. I used to be really into the huge sound of huge subs, but i did not want to sacrifice my space in my new car, so this was a great alternative for me. I read all the reviews on the product and quite frankly i am shocked that some people would have the audacity to complain that this product doesnt provide the super loud, deep punch of a big sub. of COURSE it doesnt, its not supposed to, its not that kind of sub. BUT what it DOES do is really fill in the void of sound where the factory installed or even an aftermarket pair of door/deck speakers leaves off. my car has 6 1/2" speakers all around, and even they do not provide me with enough bass, but this unit adds that much missed tone. i firmly beleive that for the money, you will not find ANY better product that is in the same category. they tuck neatly under my seat where i am not using the space anyway, and give me a sound that i am VERY pleased with for the dollar :) i highly recommend them to the budget oriented consumer who wants just a little more oompf in there system without sacrificing space.

Simple science or consider the alt.

Written By Ian, Riverside, CA on Tuesday, October 23, 2007

I bought it. I heard bad reviews. I heard good ones. You will get $150 worth of bass easy. It won't rattle things. The sound will be cleaner for it. You won't go deaf. These are mostly good things to be said. It has an on and off switch. I get upset when its off. I have had it for a year and I panic if it accidentally get switched off. I miss it that much. It is a very good subwoofer.

I have had amps that cost twice what this costs. I have had sub speakers that cost about twenty dollars more than this cost; a piece. All in all a 1000 dollar system might make you twice as happy and take three times the work and last weeks before everyone in the neighborhood knows what you have and steals it. If you buy more than this get theft insurance and plan on redoing your entire system because your subs got everything else stolen. I say save it for the big screen.

Clear as mud!

Written By Maestro, Arlington, VA on Wednesday, October 17, 2007

Crutchfield Customer Review (What's this?)

I had been advised that this subwoofer would fill in the bass void for my fantastic Boston Acoutics speakers so that I could distinguish a string bass from a tuba from a tympani. It was not intended to serve as a thumper. But, it only gives a hint of these instruments. Piano bass is likewise poorly defined. The only thing going for it are price, size and built-in amp. In spite of the installer's comment that my head unit could control it without the remote, I found that it was essential to plug the remote in and locate on conveniently on top of the hand brake in order to take any advantage from this sub.

Adequate for its size, but not for bass thumpers

Written By Lee, Boston area on Thursday, August 16, 2007

I had my folks pick this up for me for my birthday. Installation was a snap with the included wiring harness. I've got it running off a Alpine HU with RCA cables for the inputs. It actually squeezes under the seat in my 2006 Mazda Miata. The sound output is noticable and does add to the bottom end of my music. I can feel the bass coming up through the seat, which is kind of cool. But don't expect it to rattle your windows or mirrors because it can't. Is it worth the price? Only if nothing else will fit. Otherwise I'd suggest another option.

I don't recommend it.

Written By sebaz, Raleigh, NC on Saturday, July 28, 2007

Crutchfield Customer Review (What's this?)

This is not really a subwoofer, in the usual terms one thinks of as a subwoofer. The main reason to get a subwoofer is that the 6x9 speakers can only handle a certain amount of bass before making that annoying "ploc" noise that happens when the speakers receive more bass than they can handle. Thus the need for a subwoofer that can handle that extra bass without going "ploc" on you. Also, 6x9s are decent at reproducing bass in the 100 Hz area but not at anything lower than that, and subwoofers are good to compensate for that drop. But this model doesn't do a decent job in either area, it still "plocs" when the bass is too loud, and it doesn't reproduce lower bass frequencies than a 6x9 speaker. It does well in the 100 Hz area and anything lower drops considerably. This is only worth it if you for some reason can't have 6x9 speakers in the back and you only have tiny speakers and need some bass, then that's the only situation where this item could be worthwhile.

This tiny sub sounds great

Written By la_surfer222, Diamond Bar, CA on Friday, June 15, 2007

Crutchfield Customer Review (What's this?)

Without having much cargo or trunk space in my 2005 Prius, I chose this unit to be installed under the front seat (passenger). Installation went pretty easily, and I'm impressed with the sound. As long as the seperate sub volume control is not set too high, I get exactly what I wanted; rich, full sound with bass that is not over powerering or sounding too "punchy" . Be sure to try the different phase switch settings for the best sound. I definitely like having the remote power / volume controller (and yes, it is needed depending on what type of music you are playing). Now that I have my sub, along with the Infinity door speakers I installed earlier, my little Prius with the factory stereo sounds quite impressive!

great for trucks

Written By michael, hendersonville, nc on Saturday, June 09, 2007

Crutchfield Customer Review (What's this?)

I don't have much room, much money, or much need for bass that draws attention. I wanted something that would add depth to my new sound system, and I got it in a major way! Fits great under the seat of my 2003 Ford Ranger ext. cab, and as I said adds the vital low end to my favorite pop and rock tunes. I feel it's a must have for 30 and 40 somethings like me.

Perfect for my '06 TJ

Written By john, Colorado on Monday, June 04, 2007

Crutchfield Customer Review (What's this?)

I considered the Kenwood KSC-SW1, but after reading the reviews I decided I needed a smaller box to fit under the driver seat. The JVC CS-BB2 fits perfectly between the slider rails without blocking my rear passenger's toes. I bolted it in (removed seat to drill the holes) but I bet it would not slide if you relied on Velcro alone.

My HU is an Alpine CDA-9883 and I'm feeding the sub with 8 feet of Monster RCA cable. I have Kicker 05KS52 5-1/4"s in the dash (adapter plates from another vendor) and Infinity Reference 6012si 6-1/2"s in my sport bar sound pods.

I listen to classic & modern rock, folk, classical -- nothing that thumps. This sub does exactly what it claims. It adds precisely what I was missing, right in the seat of my pants (literally!). As others have stated, this isn't gonna garner attention from your vehicular or pedestrian neighbors, but if you own a 4-speaker TJ, you'll finally be able to enjoy your tunes above 50mph with the top down.

Jeep Wrangler installation

Written By Kerry, North Coast on Thursday, May 24, 2007

Crutchfield Customer Review (What's this?)

This subwoofer works great in my '01 Wrangler. I had already installed a Blaupunkt stereo, so hooking the subwoofer up was a breeze. Two hot wires, one ground wire and a (not included) RCA cable and I was rockin.
Since I only had four 5" speakers in the Jeep it was seriously lacking bass, especially with the top off. This subwoofer easily adds more than enough bass - and with the (wired) remote it's easy to adjust to the perfect level on the fly. I don't think I ever turn it up past half way. It's not a thumper per se, but I don't listen to thumpin' music and frankly I'm grateful that it doesn't rattle the neighbors windows. What it does do is add nice warm bass to my metal, rock, classic rock and blues cds. It's exactly what I was hoping for and priced right. It fits under the Jeep seat fairly well too. It seems to be solid as a rock and doesn't rattle at all so far. Rock on.

Better Than Expected

Written By Chipp, Kansas City, MO on Saturday, May 19, 2007

I'm a fairly picky music and asthetics fan. In my truck I don't have too much space and the stock speaker spaces don't allow for too much flexibility (4x10 rear 5 1/4-6" doors) so I read all the reviews & specs of the small powered subs and the JVC, although the smallest would fit snugly either under the drivers seat or against the back wall of the cab while still allowing use of the rear jump seats. The fit is perfect! It's mounted behind the passenger seat between the side wall and the jack enclosure. the amp for my system is mounted behind the drivers seat. As all the reviews said, this little thumper does very well with all but rap & some hip-hop. I'm not much into shaking foundations, so the JVC fills in the low end nicely and is adjustible through my Kenwood Excelon head unit. Installation was a breeze (I kinda cheated - I tapped power & remote turn on from my existing amp and upped the fuse size.) All in all, a very nice little sub - Highly recommended!


Written By christopher, Danbury CT on Thursday, May 17, 2007

Crutchfield Customer Review (What's this?)

I have an 04 Wrangler and the sound system needed some updating so after I purchased a Pioneer deck with Polk speakers front and rear it sounded much better but was still missing something. My Jeep did not have the factory sub so I wanted something small. I gave the JVC a try and was really not expecting much. I was very much surprised on how it filled in where the speakers were missing. This is by no means a high powered sub so if you want spleen shaking bass you need to look elsewhere. If you are looking for a great sounding sub and don't need to be heard a block away, I would really recomend this.

Great Sub for Small Footprint

Written By cyberspun, Kansas City on Monday, April 30, 2007

Crutchfield Customer Review (What's this?)

I just installed this in my 2001 Isuzu Vehicross and I am very impressed! I knew that this was not going to be the kind of sub that rattles the windows as I come down the street but for adding more depth without taking up precious cargo area this is prefect. I was able to install this right under the drivers seat without any trouble. The hook up was very easy (I have a JVC KD-AVX2)no problems. The 5.1 works awesome with DVD's a very good match. I would recommend this to anyone who wants a little more base without sacrificing any room.

Small Sub for a small car

Written By captainbk, Florida on Monday, April 23, 2007

I drive a Honda S2000. Even with upgraded head unit and speakers the car never had good bass sound. Adding a conventional sub to such a small car means loosing even more space in the trunk and eliminating the spare tire just for the sub-woofer amp. I wasnt willing to make those sacrifices.

When I saw the CS-BB2, I knew it would fit perfectly under the drivers seat of the S2000. I was right, a perfect fit.

The sound is great with my Pioneer head unit and no additional amplification, although I think it would do well with up to 60 watts per channel if you want additional volume.

No, it's not the 10" in the trunk as far as thump but hey, I can still carry my golf clubs and be ready to change a flat tire. Major thumbs up for this product. I think you will be selling alot of these to the S2000 community.

Good Little Unit

Written By Russell, Milton-Freewater, OR on Wednesday, April 11, 2007

Crutchfield Customer Review (What's this?)

This unit was installed with my new head unit and speakers in my 99 Ford Ranger Since I didn't want to loose any space behind the seat, this unit fit nicely under the pass. seat. Easy installation. I am over 40, still listen to hard rock, like decent bass with my music, but, don't need to rattle the windows a block away. This unit was everything I asked for and more! Good bass, at a reasonable listening volume. A little muddy at extreme volume, but I wouldn't listen to my music at that volume. If you have limited space, want good bass at a resonable volume, don't need to rattle the windows a block away, then this unit fits the bill perfectly. Highly recomended!

Surprisingly Good Little Thumper

Written By Dave, from Houston, Texas on Thursday, April 05, 2007

Crutchfield Customer Review (What's this?)

I needed bass but couldnt give up the space. I had only one spot left in my 2006 Toyota Matrix, and that was under the drivers seat. Since I needed my rear seat passengers to be able to get their toes under my front seats, the JVC CS-BB2 was called to duty.

I have a JVC KD-G430 head unit that is driving four 6-1/2" Alpine SPS-171A door speakers as well as providing output to the JVC CS-BB2 "sub"-woofer. All bought from Crutchfield over the last year.

Luckily, my JVC head unit has RCA line-outs that can be selected as subwoofer outputs. That means I can adjust the cutoff frequency at the head unit to "Low - 90 Hz", "Mid - 135 Hz", or "High - 180 Hz. Also, the JVC head unit voltage output to the subwoofer can be adjusted to meet the JVC CS-BB2 requirement of no greater than 2 volts.

I think these adjustments are important to get the best out of this little subwoofer. From trying this subwoofer hooked up as regular line out speakers, the results were not as great. Still better than no subwoofer at all, just not optimum.

Now, this JVC subwoofer does have its limitations. Those limitations are really low, mega air moving bass that is in most hip hop music. I believe those notes just require massive amounts of power, driving a speaker with lots of surface area to be able to produce those ultra lows with any kind of loud volume. You can hear those notes in the JVC, it just can't make them loud.

ANY other music choice you have and this thing will thump very well indeed.

For its size and price, I give it 5 stars.

When you consider its size, I give it 5 stars for sound, too.

99 Jeep Wrangler

Written By jmr01506, Brookfield, Ma. on Friday, March 30, 2007

Crutchfield Customer Review (What's this?)

This sub is a great deal for the money! It installed easily under my drivers' seat with minimal mods. It sounds great in the Jeep. Very happy with it!!

Poor frequency response!

Written By Ozz, El Paso, Texas on Friday, March 30, 2007

Crutchfield Customer Review (What's this?)

I read the rave reviews and was a bit skeptical. I didnt expect glass-rattling bass, only a supplement to a factory Honda radio in an Odyssey. I was also strapped for space. So I went out on a limb and purchased the JVC CS BB-2 powered sub. Installation was as simple as this type of installation can be! Everything except sufficient wire taps were included. Also, running the power cable through the fire wall with an in-line fuse was a bit tricky, but nothing a set of bullet plugs coulnt fix. These two things were the only complication in the installation process (realtively minor, I think).

So I powered up the sub. I soon found out that the frequency response curve is very poor. And the gain just makes it worse. I get good response down to about 120Hz (my guess), and then as frequencies drop...almost nothing. I didnt need support at 120 Hz. I needed/expected support at least to 60Hz, would have been very satisfied at 40Hz, and elated had the sub responded to the rated 20Hz.

Installation was great (fives stars there), but sound (not to be confused with volume) is where it counts. I only gave the sub two stars for its ease of use, installation, and efficiency of space. Otherwise the rating would have been lower.

To summarize, I gave it a chance; I left it in the van for two weeks. The wife stated that the factory radio sounded better without it than with it. I agree. Im sending it back on Monday.

The only reason I took a chance on this sub was because it was from Crutchfield. If I didnt like it I could send it back. Thanks Crutchfield, I wouldnt hessitate to order from you all again.

p.s. 1st return in over 10 yrs.

Delivers what it says

Written By scubasmith, Fort Myers, FL on Thursday, March 29, 2007

Crutchfield Customer Review (What's this?)

I wanted more bass and was not willing to give up valuable space in my vehicle. I drive a coupe, and this sub fit under the front part of the passenger seat, such that when the seat is forward to let people get in the back, you can still not see it. The bass is definately there, filling in some of the lower frequencies that my door speakers can not reach. It is not going to rattle your trunk, but if you want more full spectrum sound without giving up space this thing is great!

Perfect for 30 Somethings and Older!!!

Written By Bill, Pensacola, FL on Saturday, March 24, 2007

Crutchfield Customer Review (What's this?)

I purchased this for our 2005 Hyundai Sonata because I didn't want to give up trunk space to a Boom Boom sub box. At only a little over 2 inches high it fit perfectly under the passenger seat. I use a Sony GTX 400(?)head unit with 4 Infinity 600 speakers. They are nice by themselves but they didn't have quite enough bottom to them. This JVC unit solved the problem with fantastic results. I can control the sub with the supplied remote which is mounted in the tray beneath the head unit and still have room for CD's. The boost button provides more bass than us old folks might normally use but you can adjust the level with the volume knob also on the remote. I highly recommend this sub to folks want bass without giving up space or who want to maintain their hearing. A+++.

Excellent value

Written By Richard, Tampa, FL on Friday, March 23, 2007

Crutchfield Customer Review (What's this?)

This sub does just exactly what it is designed to do. Is it muddy? Yes. It is a subwoofer. It is designed to put out low fundamental frequencies with a minimum of overtones (harmonics). That will result in a muddy sound. It is supposed to add depth and fundamentals to the other speakers in your system. It does that very well, especially considering its size and power rating. Perfect for the power supplied by the head unit amplifier. If you have additional power amps, and high end speakers, this unit will not compete. It is not designed to. Those who claim that it lacks definition in the bass, are obviously in search of a woofer (with overtones) not a subwoofer (without overtones). The size is amazingly small. It fits under the front seat with no problem. Wiring was a breeze. As I said, along with my factory (infinity) speakers powered by the JVC head unit, this sub does exactly what it should. And at a very agreeable price. Thanks and kudos to JVC and to Crutchfield.

Great for tight spaces

Written By Guy, Panama City FL on Tuesday, March 20, 2007

Crutchfield Customer Review (What's this?)

Installed by local installer in '02 Honda CR-V with JVC KD-SX990 (originally purchased here in 2001).

I picked the BB2 because I lose a lot of bass to highway road noise, but didn't want to give up any cargo space to a large subwoofer box and a separate amp.

The BB2 was mounted under the front passenger seat (the same spot that Honda installs their sub). The wired remote is mounted in the slot under the 990 head unit.

Set your head unit's bass flat before turning everything on. Otherwise, bass is boomy & distorted.

It's great that I have decent fill-in bass without losing any space in the car. I don't need a thumper -- I'm not 19 and I don't listen to hip-hop -- so this compact unit fits my needs.

Still, it could be better. The bass still isn't crisp. Another reviewer said the crossover should be moved down from 110 Hz to 80 Hz, and I agree. It would have been nice if the BB2 had an adjustable crossover. It's possible to use an EQ box to shape the sound, but that means shelling out more money & finding a spot to put the gear.

The wired remote is designed such that the center point is 0 dB. Why isn't 0 at the low end? I'm having a bit of trouble finding a 'sweet spot' between the center point and the high point, especially if I need to change it for particular music types. You definitely don't want to turn it all the way up! I'm still experimenting, and may end up lowering the 990's bass a couple of notches to see if that helps.

Regardless, this is a decent piece of kit and the price is good. It's a case of having reasonable expectations.

Very Pleased!

Written By Tim, Boston on Friday, March 16, 2007

Crutchfield Customer Review (What's this?)

Realatively simple installation under the passenger seat of my Subaru Forester. I had only hoped to fill in the missing low end but this little package really has some punch (you will definitely feel this unit!). Actually more than I expected from its size. I connected this to a Kenwood KDC-X491 via RCA sub out. I could not be happier with the sound. Thanks Crutchfield for stocking quality. I never would have know there was a stand-alone powered subwoofer that could fit my car. Really awesome. Thanks.

Nice bass in a tiny package

Written By mistertwobanger, Orange County, CA on Tuesday, March 13, 2007

Crutchfield Customer Review (What's this?)

This JVC subwoofer will be your best choice if under the seat is all the space you got for a subwoofer. When fed a flat signal (white noise), this sub will be pathetic in producing anything under the neighborhood of 80 hz. It will however be overly loud around its crossover point of 110 hz. As a result, your music will just sound weird. A wonderful solution would be to move the crossover point down to about 80 hz, cut the bass control on your head unit by a few db from flat and somehow boost 50 - 60 hz by a few db. The sub's response will now be terrific. Of course, you will need a passive equalizer with an adjustable subwoofer crossover to do all this. I have my JVC installed under the passenger's seat in a 94 Honda Accord Wagon. Looks like the Kenwood KSC-SW1 will fit as well, but hey, the JVC costs 100 bucks less right now. The JVC is hooked up to the factory head unit via a line level converter and a Kenwood 5 band EQ. The bass in this set up won't knock you off your feet but it will put a smile on your face because it will produce bass your door speakers would never dream of. Remember, a lower crossover point and a few extra db around 50 hz will make a world of difference. Without the EQ, the JVC will not show its full potential.

Great speaker at a great price

Written By Alan, Florence, NJ on Friday, February 23, 2007

Crutchfield Customer Review (What's this?)

I was looking for something that wouldn't take up much room but at the same time would bring out the bass that was lurking in my Kenwood HU. At the same time I was ordering a cable to connect my new ipod to the system. The JVC was reasonably easy to install and it fits like a glove under the drivers seat in my 01 Trooper. The sound is absolutely awesome! I have the bass on the HU set at -2 and use the unit remote to set the level, but it's a set it and forget it thing anyway. Looking for nice tight bass in a nice tight package? This is the speaker for you!

WOW! Super bass in a little package

Written By Jason, Hartford, Connecticut on Friday, January 19, 2007

Crutchfield Customer Review (What's this?)

Deep rich bass in a small package! It won't shatter windows or draw attention to you from 3 blocks away but it will definately bring out the full range of your music. Installed in a 2003 Subaru legacy sedan, it fits perfectly inder the seat without interfearing with the seat adjustments. You'll hear and feel the lows and drum beats throughout the passenger compartment. The wired remote is handy for quick adjustments. Exceptional value and customer service as this unit was purchased via the Crutchfield outlet. If you want decent bass but don't have a lot of room or cash to install a large subwoofer, the JVC CS-BB2 is for you!

Fills a niche

Written By Joe, Lawrenceville, GA on Saturday, January 06, 2007

Crutchfield Customer Review (What's this?)

If your looking for a deep, thundering sub, this unit is not for you. If your vehicle is space constrained and you are looking to fill in the low end frequency "gap", then you should consider this JVC unit. The unit installs easily enough under most seats. We are driving the sub with the JVC KD-DV6200 DVD Receiver. It was necessary to set the receiver's sub output at level "1" to prevent distortion. Even at this setting, the sub nicely fills the Honda Odyssey with the low frequencies missing from the in door/in panel speakers. With realistic expectations, you will appreciate this sub.

Awesome unit

Written By Kenith, Statesboro, GA on Friday, December 29, 2006

I attatched the unit to the back seat of my small-cabbed 1992nissan pick-up and was simply amazed at the bass output. The unit is very useful because i have no room for a box and amp and subs and i found that it sounds good when you are in the car and not noticable outside so say goodbye to the noise tickets!

To get the best all around sound turn your bass on your radio all the way down and the unit all the way up and there is no distortion of sound. Another problem you might encounter is that if turned up all the way for too ong the unit gets very hot. but all around i highly reccomend this for cramped space and I plan on getting another one to mount on the seat too so that it sounds even better.(run this unit with a bass test song and you will be amazed)

02 Jeep Wrangler Install

Written By AlK, Columbus, OH on Sunday, November 12, 2006

Crutchfield Customer Review (What's this?)

I mounted the unit under the back seat of my 02 Jeep Wrangler. It is plenty powerful for the interior of the Jeep, and I'm still tweaking it some. But, so far it seems to produce a very respectible rumble of bass, especially for such a small unit.

Only complaint is that you threw me a curve on the wiring harness. The blue acc wire is broken somewhere (verified with my multimeter). I wired the power with an "Add a Line" fused connection to my back windshield wiper circuit (which is only powered when the ignition key is on) and spliced the blue and yellow wires on the harness right in front of the connector. Problem solved, but still worth mentioning. And, actually this is a little more trick wired like this, because the manual says the sub will run the battery dead without the engine running. And, this way my sub is off when I'm listening with the engine off.

Easy Install/Decent Sound

Written By Wes, Richmond Virginia on Tuesday, November 07, 2006

Crutchfield Customer Review (What's this?)

Own a truck and wanted to keep the back jump seats for passengers. I have looked for a small compact subwoofer that will fit under my seat. I have just a simple Panasonic head unit with some infinity 6x9 door speakers. The JVC CS-BB2 was able to fit under my passenger seat with little or no problems! The included wiring harness was clearly labeled and the 9 foot cord reached fine. Also the included variable bass control was useful to adjust based on volume level. The JVC added full sound to what I currently own without costing me hundreds of dollars. While it is not a 10' or 12' it does provide a well-rounded sound to what I currently have. The install was also a snap!

Unbelievable for such a small component

Written By Brad, Ponte Vedra Beach, FL on Saturday, October 14, 2006

I mounted this under the rear seat of my 1985 Jeep CJ7 to fill the gap in such an open vehicle. It pumps out the bass to feel the music sitting at a stop light or cruising on the highway. I highly recommend this sub when you do not want to lose any room in your vehicle.

This sub will vibrate the vehicle, so make sure you use auto-weather stripping or dynomat to reduce vibration.

Dynamite in a small package

Written By William, Nebraska on Thursday, September 14, 2006

I wanted a powered sub to mount under the drivers seat of a 1985 full-size Chevy K5 Blazer, because I didnt want to lose any cargo space to sub boxes, didnt want to cut holes in the trim panels, and didnt want any audio equipment (other than the head unit) which didnt look stock to any potential smash and grabbers that looked in the windows.

This sub was more than small enough, but I really didnt expect much from something this small, just a little low end boost. My other speakers are Kenwood KFC-415 4x10s behind the stock rear grilles way in the backand a pair of 100Hz bass-blocked Infinity 3012cf 3-1/2s in the stock dash location. Bass was lacking in that big, noisy truckish SUV, and the 4x10 Kenwoods needed some help with the low end. The head unit is a JVC KD-HDR1, so the decks line-level sub outputs were used, so the corded sub level control was not needed, and stayed in the box.

Right after the sub was installed, I put in Pink Floyds Animals, and turned up the volume. The sub was a little overpowering, and the bass was distorted, boomy and "loose". Not at all good. The JVC deck has 2.5V max sub output voltage, and this little subs literature recommends only 2.0V max, so I looked at the head units sub volume level. It was set to the default "6" (range 0-8), so no wonder it was distorted and boomy. I dropped it down to "4" - the bass tightened up nicely, the boominess went away, and it sounds very good for a teeny 6" subwoofer.

Pink Floyd sounded great, The Who sounded great, as did Handel and Vivaldi. I dont do hip-hop or rap, so didnt care to even give either a listen with this sub.

A wider variety of mounting hardware would have been ni

Not impressed with the bass out of this little unit at all.

Written By Chris, Bethlehem, PA on Thursday, September 07, 2006

I just traded in a Subaru LL Bean 2005 for a 4runner. My subaru had what I considered a great system for separating out the highs/lows. Only had a little bass/sub under the passenger seat.

So I thought I would try this JVC as I thought it might have been as good as my one in the Subaru.

It did't come close to that quality at all, I liked its size becuase it would fit under the seat but after two weeks I gave up on it. It gives more of a 'thud' than a real bass note and would not reccomend spending money on this item.

I ended up putting an amp where the unit was under the seat and went with a 10" sub in the cargo area in a box, so much better!

I am not someone who cranks the bass really high so that you hear me comming down the street but do appreciate a really great system with great definition of sound.

I matched the sub with infinity components which I would highly reccomend!

Power wire

Written By Raymond, Queens NY on Tuesday, August 08, 2006

Crutchfield Customer Review (What's this?)

I bought this unit for some more bass & limited space, a mini van.
Note- My head unit and all four speakers are all JVC (no big deal)
The subwoofer is bolted on wood, then bolted to the none moving part
Of the power seat with some sponge under the wood, the subwoofer sound
Very good to me and, I use the remote too. Now the wires, the power wire
For me it's too short, from the battery to inside the car not long enough.
Anyway I got it to reach. I think it's a very good unit, other than the
Wire been too short (for me) I give it four stars only because of the power wire.

Be realistic about this sub, it's a 6

Written By ben, NJ on Friday, July 28, 2006

As I already said this is a 6" sub with 65 watts rms. You have to be realistic about your expectations. I put 2 of these in a 2006 pathfinder, one under each front seat. They sound a little boomy and they don't play very loud. I control the volume through the alpine head unit. They sound better at a lower volume where they blend into the rest of the music. I had an Infinity Bass link, round speaker, not the square one and it definetly put out alot more bass then 2 of these, but the Infinity does not fit under the seats.

If you own a Wrangler you'll want this!

Written By Jim, Seattle, WA on Wednesday, July 12, 2006

Crutchfield Customer Review (What's this?)

It's small and it sounds great. I have a 99' Wrangler and I've been looking for a self-powered sub to hide under one of the front seats. This fits perfect. I added 1" spacers under both seats and mounted the unit under the driver seat. The spacers allow the seat to move freely over the sub. This is a great way to enhance the sound of your in-dash and overhead sound bar. Even with the top and doors off you can clearly hear and feel the bass. I'm not one for mirror rattling bass so it perfect for me. But on occasion, I catch some rear view mirror movement.

You won't be disappointed!


Written By jctrieu, San Jose, CA on Friday, July 07, 2006

- Nice size, very compact, goes just about anywhere
- Easy hook-up, very straight forward
- Attractive and solidly build
- Good fill for small spaces (like in the back of an extended cab of a truck)
- All in one package, no external amps required

- Average sound quality (a little too boomy), distort at high volume
- Weak bass output (rock music ok, Hip-Hop not ok)
- Limited user adjustment
- Price a little high for what you get

Buy this unit if you want to save space. If you're not one to wake the dead with your music, then this sub may surfice if you install it in a relatively small space (i.e. in a Mini Cooper or Metro). Otherwise, consider another brand.

Hands-on research

What's in the box?

Download owner's manual

  • 6" Powered Subwoofer
  • 9' nine-pin power and signal harness
  • Remote volume control with attached 9' cord and male mini-jack end
  • Four 0.8125" x 1.6875" metal brackets
  • Four 0.75" mounting screws
  • Four 0.75" self tapping screws
  • 3'' Zip-tie
  • Two 1'' x 1'' pieces of velcro
  • One 2'' x 0.5" two sided adhesive strip
  • Red crimp connector
  • Instructions manual (english)
  • Instructions manual (spanish)
  • Warranty card
  • Product registration card
  • JVC "Is Here to Help!" sheet

Features and Specs

Enclosure Type Sealed
Finish Material Plastic
Grille Metal
Connector Type Molex
Bi-amp Inputs No
Woofer Size (inches) 6
Woofer Material Not given
Passive Radiator None
Width 11-5/8"
Height 2-1/2"
Depth 7-7/8"
Second Depth N/A
Parts Warranty 1 Year
Labor Warranty 1 Year
Frequency Response 20-200
Amplifier Power (RMS) 32 x 2 watts
Maximum Wattage 120 watts
Sensitivity N/A
Impedance 2 ohms
Second Voice Coil Impedance 2 ohms
Crossover Point 110 Hz

Product Research



Overview: The JVC CS-BB2 is a compact Powered 6" woofer that can be easily installed under the driver or passenger seat of a variety of vehicles. It is so small you can even install it under many powered seats. It makes a perfect fit for pick-up trucks, convertibles, cargo vehicles and family vehicles that cannot give up trunk space.

Driver: The CS-BB2 uses a 6" dual voice coil woofer to add better bass response to your vehicle that has limited room for adding a subwoofer or amplifier.

Amplifier: The CS-BB2 uses a 32 watt RMS x 2 channel amplifier to give you clear, accurate bass response from the enclosed 6'' woofer.

Enclosure: The amplifier and woofer are housed in a small enclosure that only measures 2.5" tall which makes it very versatile and easy to use even in the most compact of vehicles.

Wired Remote Control: The wired remote control allows you to turn the CS-BB2 subwoofer's output off and on. The wired remote also allows you to adjust the subwoofer output level so you can dial in more bass when you need it.

Note: Do not place the remote controller where it will be exposed to direct sunlight. When using the wired remote, deactivate all sound adjustment functions except volume level; otherwise, the sound may be distorted.

L.P.F. (Low Pass Filter) Switch: You can turn the low pass filter off if your receiver is equipped with a built in low pass filter output. 

Crossover Frequency:

  • L.P.F/"ON": 20 Hz to 200 Hz

  • L.P.F/"OFF": 20 Hz to 500 Hz

Phase Switch: You can adjust the phase of the subwoofer to match the existing speakers in your vehicle. Switch to the position that gives you the best sound.

Speaker Level In: The unit has speaker level inputs so you can hook the CS-BB2 to your factory radio without any additional adaptors.



  • Line In: stereo RCA jacks to hook up to your aftermarket deck that has pre-amp outputs
  • Speaker/Power In: 9-pin jack for use with supplied speaker/power input harness
  • Cont. (Control): female mini-jack input for the wired remote control unit

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 verify what’s in the box, 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.