Bazooka BTA8100

BT Series 100-watt powered 8" Bass Tube®

Item #: 204BTA8100

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27 Reviews


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A bass cannon

Bass makes up about 30% of your music, and it gives music its power and impact. A good subwoofer can make an average car audio system sound good, and a good car audio system sound great. Good bass is all about moving air, and a cylindrical tube translates the motion of its woofer into maximum air pressure so you hear and feel more bass. Bazooka designed the Bass Tube to act like a bass cannon, firing low frequencies throughout your vehicle.

Bass Tube efficiency

BTA8100 8" amplified Bass Tubes enclosure

The affordable BTA8100 8" amplified Bazooka Bass Tube lets you add ride-filling bass to your system with a minimum of hassle. It's an ideal solution if you drive a leased vehicle, and want the thrill of powerful bass but don't want to make any modifications. The BTA8100 Bass Tubes enclosure comes with a 8" woofer, a built-in amp (100 watts max power), and installation parts including a power/signal harness (15" power and ground wires, 10" turn on and speaker input leads, RCA inputs, and auto turn-on jumper), 7.5-amp fuse with holder, power rings, and mounting hardware.

Big bass without losing space

Bass Tubes fit just about anywhere

A compact Bass Tube will fit in almost any vehicle, and you can disconnect it in a snap if you need more cargo space. Since the tube's speaker and port are right next to each other, you can get amazing results by "corner loading" your tube — placing it in a corner of your trunk or cargo area so your vehicle's boundaries act as a natural amplifier, boosting bass production.

Bass control from the driver's seat

An optional wired Remote Bass Control Module gives you independent in-dash volume control of your bottom end. Want to know more? Take Bazooka's Bass Tubes Tour.

Important Note: You'll need to purchase an amp wiring kit to install this powered Bass Tubes enclosure — the included wiring harness is less than two feet long.

Click to Play the Video
From Bazooka: Bass Tube Technology

Product Highlights:

  • 8" woofer with treated foam surround
  • power output 100 watts max
  • 85 Hz low-pass filter (18 dB/octave)
  • line- and speaker-level inputs
  • frequency response 39-85 Hz
  • subsonic filter (12 dB/octave at 35 Hz) for improved amp efficiency
  • sensitivity 105 dB
  • 8-9/16"W x 9-7/8"H x 18-3/8"D
  • 2-ohm impedance
  • 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.

Bazooka BTA8100 Reviews

Average Customer Review:

27 reviews
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Bazooka bta8100

Written By Bobby, Pennsylvania on Monday, July 27, 2015

Crutchfield Customer Review (What's this?)

Easy to install and remove from vehicle. Not ground shaking bass but fills in the lows great. Just what I was looking for.

Pros: Easy install, removal and sounds great

Cons: Non. The advisor was spot on!!!

Bazooka BTA8100

Written By Anonymous, St Croix. U.S.V.I on Saturday, October 04, 2014

Crutchfield Customer Review (What's this?)

Great bass. Pics up all tones.

More than I expected!!!

Written By Dave, Rockwall, TX on Tuesday, September 24, 2013

Crutchfield Customer Review (What's this?)

I bought a Kenwood deck initially with four 6 1/2 inch Kenwood speakers. The system sounds nominal at best little tinny. The system was installed in a 1991 Honda Civic hatchback. I really wasn't satisfied with my system because of not having enough low end bass. So I bought the bazooka tube 8 inch hundred watt self powered tube. The addition of this bazooka tube has taken my system from a 4.5 out of 10 to a 9.5 out of 10 in sound quality. I'm really pleased with this purchase and with adding this sub woofer to my system. Thx Crutchfield for helping me when I called for tech support.

Great Sub!!

Written By Doug, St. Joseph, IL on Monday, July 22, 2013

Crutchfield Customer Review (What's this?)

This sub gives me plenty of power (with the built in amp) when matched up with my new Sony deck in my 2005 Silverado. I had this sub in a previous vehicle and sold it. Love the base it supplies and the ease of installation (RCA cable). Can't go wrong with this product. Thx Crutchfield!

Pros: Great price and ease of installation

Go bigger if u can!

Written By T-Rav, Pittsburgh, PA on Sunday, February 17, 2013

I originally nstalled this in a ford explorer with the stock head unit and speakers. I was pleased until I decided to add a new clarion head unit, kicker 200W amp, and all new kicker 6x8 door speakers. I was told to go with something bigger but I didn't think I would need to. I'm in my 30's and listen to everything from rock , some country, and house/dub step. It sounds ok with slower music at low listening levels but its too small and underpowered for most music at just moderate volumes. Its terribly inadequate for house/dub step at just low volumes and this will become painfully obvious the 1st time you play it. I have since ordered a kicker L7 12" and a kicker ZX 500 W amp and expect to hear a HUGE difference. Bottom line is if you don't have much space or $$$ this is an "ok " product. If you do have the space and the $$$ go with something other than this!

Pros: Compact, portable, and cheap

Cons: Too small and underpowered


Written By Jose, Bayamon, PR on Thursday, July 19, 2012

My brother in law did not believe it was only 8" and that it had a built-in amp. Very satisfied with the bass it produces; using it to hear mainly dubstep and this tube makes the bass in the music come alive.

Pros: Small, powerful, compact . . .

Cons: none to date

Love it

Written By Anonymous, Texas on Saturday, June 16, 2012

Crutchfield Customer Review (What's this?)

Love it.. Great sound.. All around a great product

Don't think twice!!

Written By Michael, kalamazoo, Mi on Saturday, September 10, 2011

Crutchfield Customer Review (What's this?)

Great sub! I used to have 2 12 in. subs with a 1400 watt amp in the trunk of my old car, but when I got my new car I knew that I wanted something a bit more tasteful and more room in my trunk. Let's face it, you don't need that much thump to fully enjoy music and I found myself turning down the bass a lot so that it sounded good. I wanted to play it safe on the bass and got the 100 watt 8" thinking it was a huge downgrade, but the sub really kicks. I still turn the bass down quite a bit and I could easily have been content with a smaller one yet. Another great thing about this is that the sub and amp is all built into one unit, so if you ever want a little more trunk space, all you have to do is unplug one little wire harness and off you go. Really smart deal. For the money and the amount of room it takes up, you just can't match this product. Bottom line is that your not gonna break your back window with this sub, but you will walk away thinking you made a great choice. The only bad thing that I have to say about this is that sometimes you don't get the same super deep thump from this sub as you would from my 12" subs for example, but as someone who really enjoys all types of music (rap, hip hop, rock, alternative, getting into country...., acoustic, etc) this was a great buy at a price and quality I can most certainly live with.

Excellent choice for Jeep Wrangler

Written By Mike, Hudson, Ohio on Thursday, June 16, 2011

Crutchfield Customer Review (What's this?)

With the help of the folks at Crutchfield I installed the Bazooka BTA8100 8" 100 Watt Powered Sub behind the rear seat of my Jeep Wrangler. I paired it up with the Polk db421's in the dash and the Polk db521's in the sound bar and drive it all with the Kenwood KDC-X395 CD Receiver. The system sounds great. I have a nice full sound at an awesome price.

I did NOT use bass blockers as some have commented about because the receiver actually allows you to specify the frequency that is is passed to each speaker. The polks have great mids and highs and the bass tube fills in the lows perfectly. This is an excellent combo.

I am stealing the idea about mounting to a piece of plywood as I to am looking for a simple solution for removal from time to time.


Written By JAY, NEW YORK, NY on Sunday, August 29, 2010

All I can say is SWEET BASS & SWEET BAZOOKA. This is my second Bazooka Bass Tube that i have bought within the past 6 years and I am very happy with the outcome. I sold my Audi A4 with my last Bazooka because the buyer didn't want to buy the car without the Bazooka Tube. If you are looking for additional bass, stop looking and buy a Bazooka Tube. Easy to install and great addition to any Factory Radio or sound system. I like the fact that all the bass stay in the car and is not disturbing the car next to you. I enjoy driving in my car more now that i have my Bazooka in the trunk or should I say riding SHOT GUN.Lol" P.S. I had no regrets 6 years ago and I have NO REGRETS now! I hope this review helps you with your decision to purchase a Bazooka Tube.

First Time BOOMERS

Written By Anonymous, Arkansas on Monday, August 09, 2010

Crutchfield Customer Review (What's this?)

I was somewhat disappointed in my factory sound system for my BMW X3 SUV. After researching options, I elected to purchase the 100w 8" BAZOOKA sub-woofer with amplifier. While the installation seems temporary, it will allow me to transfer the box to another vehicle without losing my investment. The depth of sound that my new sub-woofer provides is astonishing. It's EXACTLY what I needed. The 6" sub-woofer would have been too small. Now, I can fully enjoy all the depth and nuance of my favorite Hair-Metal Bands in full volume as was originally intended, without unnecessarily disturbing the windows of houses that I pass. Thanks Crutchfield!

Good Sound, Great service

Written By turner3949, Denver on Friday, June 18, 2010

Crutchfield Customer Review (What's this?)

Normally I have nothing to do with these product reviews, but this time I figured I needed to make an exception. I relied heavily on the existing reviews and felt I should do my part.

I drive a 99' Tacoma SR5. I was looking to add some bass to my existing 4-speaker system but had a very small space to work with. I decided on the Bazooka Bass Tube. Hesitant to go with the 8" tube rather than the 10" due to space restrictions, I decided to pull the trigger.

The bass is awesome. The 8" tube has a full sound and hits hard. If you are looking to rattle the windows or wake your neighbors, I suggest going with something a bit larger or different product.

I installed the tube behind the driver's seat. With the help of the Crutchfield Advisor, all the correct wiring kits and instructions showed up in my order and worked great. In about two hours everything was ready to go!

I like it

Written By waxer, New England on Tuesday, September 15, 2009

Crutchfield Customer Review (What's this?)

I bought mine for a 2009 Honda Element. It's installed on a small piece of 0.25" ply wood (painted black) and I wedge it under the back side of the driver's seat facing the door. This keeps it portable, since this vehicle has absolutely no extra space.

I can really feel the bass. ANY KIND OF MUSIC SOUNDS GREAT!.

I would reccomend this product.


Written By Colton, La Plata, MD on Tuesday, August 11, 2009

Crutchfield Customer Review (What's this?)

I bought this along with the FAST install wiring kit. This is all you need to hook up this sub. The best part is, you DO NOT need to buy an amp install kit and run a power cable from your battery terminal to the amp on the sub. I have a VW GTI and this sub does just enough to fill it up. The sub hits so hard, perfect for me. I'm a musician and I like to hear songs fully. This sub makes every genre of music sound good. No I am not into just cranking up the bass and waiting for my doors to fall off. If you're that type of person, save your money.


Written By Scott, San Marcos, CA on Thursday, May 14, 2009

Crutchfield Customer Review (What's this?)

Just wanted a little bass for a simple radio in my car. Got exactly what i wanted. Perfect, clean, tight bass. A great addition to any system!

Exceptional Sound

Written By Randy, Green Bay, WI on Thursday, March 26, 2009

Crutchfield Customer Review (What's this?)

I added a BTA8100 to my 2000 Rav4 and was blown away. The depth of the music is just wonderful. I was looking for something that would bring out a balance at low volume levels and this more than filled the bill. I have stock speakers in the car and I can't believe how good it sounds! My adviser recommended going with the 8" tube (instead of the 6") and it was money well spent. If you are looking to upgrade your current system without spending a lot, this is definitely the way to go. I ended up adding one to my other car 2 weeks later. Great job Crutchfield! Way to go both Josh and Clarence! Thanks!

Bazooka BTA8100

Written By Jason, Waipahu, HI on Friday, February 27, 2009

Crutchfield Customer Review (What's this?)

every one here pretty much covered it. the bass output from this tube is pretty clean and tight and more than enough for most people but not if you want to wake the neighbors . for me 1/4 gain is all the bass my pontiac G5 needed to fill out the low end w/o over powering and drowning out the factory speakers (the factory speakers sound pretty good btw just missing highs and lows. GM does a good job with there factory sound compared to some others) 100 watts is a lot with this tube I know I would not need any more power. also mounting in the left corner on this car a 8 is the largest you can go and still being able to open the rear battery/spare tire cover. I did also need to cut the carpet at the edge of the cover so it could still open and left the end carpet bolted under the tube. I actually had the tube connected and operating in 15 minutes but the cosmetics and were and how to mount the tube took me a while.

I did not give it 5 stars because like everything its not perfect. the Auto turn on Feature does not work well at low volumes it will some times shut off. that is likely why Bazooka does not really talk about the Auto turn on Feature at all in there included instructions.

overall I am happy with this tube. now some better front speakers to fill in the highs and I should be done

great subwoofer

Written By RICHARD, staten island ny on Friday, February 06, 2009

Crutchfield Customer Review (What's this?)

hooked this subwoofer to my factory infiniti sound system in my chrysler town and country LIMITED. also purchased the remote control from BAZOOKA. it did exactly what i expected it to do. give me the extra bass that i was looking for from my factory system. plenty of extra bass. also the remote control is good to have so you can control it from the the front and use just the amount of bass that you want. also thanks to crutchfield for the speedy delivery.

Well worth it!

Written By Brian, Toms River, NJ on Wednesday, October 15, 2008

Crutchfield Customer Review (What's this?)

Ease of installation was great! The sound quality is perfect! Alot of bass for a compact subwoofer. Perfect size for a compact car and does not take up the whole cargo area!

Excellent Subwoofer

Written By Chevy, Dallas, TX on Saturday, April 19, 2008

I am a proud owner of this subwoofer. I have a single cab 1996 chevrolet C1500 truck and this subwoofer fit perfectly with ROOM TO SPARE. I was very impressed with the sound quality. It fills in the low end of music very well. It hits very ACCURATELY and DEEPLY, excellent for most types of music. This subwoofer does its job MORE than well. I listen mostly to hard rock and I promise you this is an excellent buy to fill in the low spots very well. It is not for serious bumping down the road, but this little thing will absolutely satisfy your need for bass and more. Don't get me wrong... the thing can bump to your music and it CAN be felt, but just not like a 10" Kicker or another big subwoofer. I have owned one for 6 months and the sub still produces just like the day I bought it. Easy installation and easy take-out. Very good buy.

Pros: Little, Fast and 100% efficient hitting on music, excellent sound quality, has some good bump to it (especially if right behind your seat), already has amplifier inside, easy installation, fits most genres extremely efficiently, overall a VERY good deal

Cons: The harnesses that it comes with aren't the strongest, so you may need a little more to hold it down, but it is not a big issue at all, I assure you.

Overall, I am a very satisfied owner of this subwoofer. It has amazing sound quality and I am very impressed with the low cost for how much satisfaction I have gotten from it.

good, but not great

Written By justin, bremerton, washington on Saturday, February 16, 2008

First off this is an impressive package for the money and was a sinch to install. I like the fact that it all comes together in one enclosure (amp/sub/enclosure). It doesn't hit like the speakers that I have had in my other cars, however you won't be dissapointed if a.) it is your first upgraded car stereo, b.) you are on a budget, or c.) you have kids and just want a little bit more low end. As someone else said in a review about Bazookas, they are practical and affordable, but overall they do not hit as hard as an enclosed box with a set of subs and a more high power amplifier.

Great Boom for the Buck

Written By MeShun, Atlanta, Ga. on Monday, April 30, 2007

Crutchfield Customer Review (What's this?)

I have a '05 Tiburon GT Coupe/Hatchback, so I don't have that much space. I purchased this with the hopes of rounding out my factor system. To my surprise this little tube hits much harder than I thought.

For those who want house rattling bass you should not even be looking at a bass tube, you need a pair of 10's or 12's with a poweful amp. Moving on, my only problem was trying to adjust it properly because I had to use a Line Output Converter. Other than that, my car has the full circle of highs-mids & lows, with a nice back massage coming from the bass. Rap, Jazz, R&B, and rock sound wonderful.

BTA 8100

Written By Dale, Zap, North Dakota on Monday, January 15, 2007

Crutchfield Customer Review (What's this?)

I bought this to add a decent amount of bass to my 91 Buick LeSabre system. I did not want the hassle and clutter of an amp and sub box so I went for the Bazooka. I love it!! I can feel the bass hitting hard from the top of my head to the soles of my feet. I had Hip Hop Nation(On my Kenwood Sirius receiver) booming to start, then I switched to my Metallica CD and was just as impressed. My brother told me he could hear the bass before I turned into the driveway, I live in the country and my driveway is a couple hundred feet long!! If you are thinking of a sub that takes up very little room but still pounds out the bass hard, I would highly recommend this. The one thing I did not do but will on Monday is purchase the remote control so I can adjust the bass from the drivers' seat.
I will be buying the BTA 10200 for my 94 Suburban this coming summer. I want more bass for my Burb so I will get the bigger Bazooka. I will write a review for that when I have it installed. I currently have a band pass box with dual 10's in it and I am not happy with how much space it takes.

Not What I Expected

Written By Seth, Manhattan, Kansas on Thursday, December 14, 2006

This was my first subwoofer purchase, and i was happy with it until i heard other brands. My friend with 2 Kicker CVRs says that my tube sounded like 6x9s. the power rating is so low that i cant even use the subwoofer controls on my JVC reciever. I have to run the sub as a rear speaker instead of a sub. I did not like that the sub distorts so easily. however, i will say that if u just want a tiny bottom end, then go with bazooka.

but if u want to have bass that will rattle mirrors like i do, then go with a different brand.


Written By Marty, Raleigh,nc on Sunday, May 14, 2006

I bought this sub to install in my daughter's 92 Celica convertible. Since it is a convertible, it can only except 4" speakers and bass is an issue, so is space. This is mounted in the trunk where there is very little room and bass gets cut down significantly when the top is down. My daughter likes her music balanced, not high sound pressure. She is a musician and appreciates the entire spectrum of sound.
I was worried if this sub would have enough power to give at least decent performance. Once I turned it on, my fears were gone! This sub kicks. Not as intense as my son's 12" sub setup, but we had to turn down the sub amp as well as the bass output on the headunit in order to balance the system. She is running an Eclipse headunit, 4 -4" infinity reference speakers and this sub. It's overall sound is better than my Alpine CDA-9853 with a 300w. Alpine V-12 4 channel amp pushing 4 Alpine R 6.5" speakers. I am now buying one of these so my stereo will sound as good.

Jeep Liberty Bottoms Out w/Bazooka

Written By John, Detroit, MI on Friday, August 19, 2005

2004 Jeep Liberty = limited cargo space = fewer subwoofer choices. Agonized over what few choices I found, then went with the 8" amplified Bazooka bass tube to "round out" an already awesome set-up. 6" seemed too small, 10" too big, so .......install was done locally as I thought it a little beyond my expertise. Once adjusted & tweaked & broken in, the tight bass just kept getting better. Mounted in left rear cargo area, approx. 4" from tailgate, as recommended by Bazooka. HOLY SMOKES ! With Alpine amp and head unit controlling my iPod, Polk Audio up front, Infinity Reference in rear, and DynaMat all around the Bazooka adds punch and definition to everything from hip hop to jazz to country and pop. With all the adjustments possible from the Alpine head unit, I can "dial in" just the right amount of bottom. For any vehicle with limited space, this is a great way to enhance your audio experience ! Worth every penny for a guy like me that takes a lot of road trips and likes his music both LOUD and CLEAR. You won't win any audio contests with this, but the Bazooka is a fantastic "middle ground" solution for those needing a bit more bass in their ride. Added bonus for this old hippie- chicks are checking me out now, too !


Written By Wade, San Jose, CA on Thursday, August 11, 2005

I bought this bazooka for my 92 Honda Accord sedan. I wasn't sure how it would sound. I had one in my 95 integra hatchback and it sounded great back in the day! That was 10 years ago though, so I wasn't sure what to expect. This is the first powered bazooka I have had too. The other one I powered with an external amp. Well, this one sounds good too. It doesn't shake the neighborhood, but it does shake the car pretty good. With some Infinity 6 1/2's my system sounds great.

Hands-on research

What's in the box?

Download owner's manual

  • One 8" amplified tube-style subwoofer with attached grille
  • 10" Wiring harness
  • 1 In-line fuse holder with a 7.5A fuse (has 6" leads on both sides)
  • 3 Blue butt connectors
  • 1 Crimp-on ring
  • 1 Self-tapping screw
  • Two 36-1/2" mounting straps (each strap has an attached plastic mounting base)
  • 4 Self-tapping screws
  • Installation Manual

Features and Specs

Enclosure Type Ported
Finish Material Poly
Grille Plastic
Connector Type Molex plug
Bi-amp Inputs No
Woofer Size (inches) 8
Woofer Material Poly
Passive Radiator None
Width 8-9/16"
Height 9-7/8"
Depth 18-3/8"
Second Depth N/A
Parts Warranty 1 Year
Labor Warranty 1 Year
Frequency Response 39-85Hz
Amplifier Power (RMS) 100 watts
Maximum Wattage N/A
Sensitivity 105 dB
Impedance 2 ohms
Second Voice Coil Impedance N/A
Crossover Point 85 Hz

Product Research



Overview: The BTA8100 features a water-resistant poly enclosure that houses an 8" poly woofer with a foam surround. The woofer is powered by a built-in 100-watt maximum amplifier. The patented Bass Tube enclosure design eliminates bass standing waves for high accuracy, and superior efficiency.

Low-pass Filter: The BTA8100 has a fixed low-pass filter at 85 Hz with a slope of 18 dB/octave. 

Subsonic Filter: The subsonic filter, set at 35Hz, prevents really low frequencies from being amplified. This allows the amplifier to run more efficiently with increased power output.

Remote Level Control: Using an optional remote level control, you can control the bass output level of the subwoofer from a remote location.

Auto Turn-On: The subwoofer will turn on automatically when it senses music in the high-level or low-level inputs.

Balanced Input Circuitry: Balanced low-level and balanced high-level input circuitry is used for improved noise reduction.


Back Panel:

  • Level Control: rotary control that allows you to adjust the level of the subwoofer
  • Input Phase Switch: allows you to adjust the phase of the subwoofer
  • Power LED: if power, ground and remote are connected properly, the LED will illuminate in green


Back Panel:

  • Remote Level Control: minijack for use with optional remote level control
  • Harness: 14-pin Molex plug for use with supplied harness


Installation: Each mounting strap has an attached mounting base that can be secured to your vehicle using the supplied self-tapping screws. Once the mounting bases are installed, the tube is held in place by the mounting straps. For best results, the tube should be mounted facing into a corner, and there should be 2" to 4" between the woofer and the corner into which the woofer is pointing.

Required Accessories:

  • Power Wire: the 16-gauge power lead is only 10" long, so additional wire is required to extend it to the battery. Additional power wire must be crimped or soldered to the Bazooka's power lead.
  • Ground Wire: the 16-gauge ground lead is also only 10" long, and may need to be extended. Additional ground wire must be crimped or soldered to the Bazooka's ground lead.
  • Speaker Wire: required only when using the high-level inputs
  • RCA Patch Cord: required only when using the low-level inputs
  • Remote Turn-on Wire: required only if you do not use the auto turn-on feature

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.