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Tang Band W5-1138SM 5-1/4" Neodymium Subwoofer

Brand:|Model: W5-1138SM|Part # 264-831
Amazing bass in a compact package! This one-of-a-kind 5-1/4" subwoofer has an impressive 9.25 mm of Xmax. A wide roll surround, raised flat spider, and large 1-1/4" 4-layer voice coil ensure impressive bass performance and high power handling.
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Part # 264-831
  • Amazing bass in a compact package
  • Wide roll surround, raised flat spider
  • Vented pole and vented spider allow good airflow around the coil to improve heat dissipation and reduce compression

Product Details

Tang Band W5-1138SM 5-1/4" Neodymium Subwoofer

Amazing bass in a compact package! This one-of-a-kind 5-1/4" subwoofer has an impressive 9.25 mm of Xmax. A wide roll surround, raised flat spider, and large 1-1/4" 4-layer voice coil ensure impressive bass performance and high power handling. The vented pole and vented spider allow good airflow around the coil to improve heat dissipation and reduce compression. The ultimate miniature subwoofer driver!

Product Specifications
  • Nominal Diameter5-1/4"
  • Power Handling (RMS)40 Watts
  • Power Handling (max)80 Watts
  • Impedance4 ohms
  • Frequency Response45 to 1,500 Hz
  • Sensitivity82 dB 1W/1m
  • Voice Coil Diameter1.26"
Thiele-Small Parameters
  • Resonant Frequency (Fs)45 Hz
  • DC Resistance (Re)3.4 ohms
  • Voice Coil Inductance (Le)25 mH
  • Mechanical Q (Qms)2.83
  • Electromagnetic Q (Qes)0.58
  • Total Q (Qts)0.48
  • Compliance Equivalent Volume (Vas)0.21 ft.³
  • Mechanical Compliance of Suspension (Cms)0.49 mm/N
  • BL Product (BL)6.51 Tm
  • Diaphragm Mass Inc. Airload (Mms)24.95g
  • Maximum Linear Excursion (Xmax)9.25 mm
  • Surface Area of Cone (Sd)94 cm²
Materials of Construction
  • Cone MaterialPaper
  • Surround MaterialRubber
  • Basket / Frame MaterialSteel
  • Magnet MaterialNeodymium
Mounting Information
  • Overall Outside Diameter6.13"
  • Baffle Cutout Diameter4.74"
  • Depth3.78"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.11 ft.³
  • Sealed F379 Hz
  • Vented Volume0.36 ft.³
  • Vented F339 Hz
Tang Band W5-1138SM 5-1/4" Neodymium Subwoofer
  • BrandTang Band
  • ModelW5-1138SM
  • Part Number264-831
  • UPC844632009785
  • Product CategorySubwoofer Drivers
  • Unit of MeasureEA
  • Product Rating
    (67 Reviews)
  • Weight1.8801 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Tang Band W5-1138SM 5-1/4" Neodymium Subwoofer
Tang Band W5-1138SM 5-1/4" Neodymium Subwoofer is rated 4.3134 out of 5 by 67.
Rated 5 out of 5 by from Bose replacement in Mercedes C 320Not many decent 5-1/4 subs around, this driver is exceptional. Fit Bose sub enclosure with minor mods, added new 100 watt mono amp. Looks like .75 cu/ft or so, made sure it was an airtight installation. Don't crank the mounting screws, apply a big bead of silicone then set the screws just barely tight. Needs a lot of break-in time, maybe 50 hours, then it it starts shaking the car with clean 40hz punch with mild e/q and boost. Excursion is amazing! With Kappas in the doors and Dayton AMT's in the door sails this is a high fidelity car system that produces realistic sound and actually images. Almost 2 years of tough use in the car and it still sounds great. Nobody believes it is only 5-1/4 inches, they think 8 or 10 inch driver till I show them.
Date published: 2016-01-12
Rated 5 out of 5 by from Clean SoundI used these in a car (Porsche 996) installation and they turned out great. The Porsche had ported speaker boxes built into the doors with an old, paper cone speaker. These fit as a replacement with minimal mods and they are nice and crisp for the low end. They are not vibrate-your-license plate low but thats not what I was looking for. Very happy with the purchase.
Date published: 2014-05-07
Rated 5 out of 5 by from awesome little beastI had been going through some of the builds in the project gallery when I happened across a couple portable boom box ides. As a full time audio tech and repair technician I spend most of my time designing cool stuff to build in my head. I often find myself in the wood shop with my cnc cutter building my latest sub-woofer idea or pa speaker design. Not being able to get the idea out of my head I set out to design my portable, slightly over the top boombox. I have built many sub-woofer cabinets of many different styles from giant horn sub-woofers for pa application to smaller font loaded home stereo subs. I have built many over the top car audio subs for sheer sound my expectations of this little speaker were not high.I spent some time looking at component choices to build my portable boom box and this speaker met the basic requirements and size to fix my design. My design goal was for a battery powered portable with ample bass output for some back yard and in the shop use. Needless to say this little sub has put a big grin on my face. I am totally in my happy place. I am quite pleasantly surprised at this little marvel.I settled on a .5 cu ft box tuned to 44Hz. I am hearing some frequencies well below tuning and this little speaker sounds much bigger than it is. I turned it on and my jaw just about dropped to the floor. The bass is tight and articulate and hits well below 40 Hz. So happy with this thing I couldn't wait to post a review.Still have all the finishing to do. I still waiting for some parts... sounds good enough for testing with.
Date published: 2014-03-04
Rated 5 out of 5 by from Tang Band 5-1/4 Subwoofer in a Bandpass BoxThis little speaker is an unexpected surprise! I used this to replace the BA computer 2:1 sub in a bandpass setup. I had to square off two opposite sides of the speaker's basket to make it fit, so I knew I better like this. This completely surpasses ANYTHING that old BA 'Woofer' could ever play. This sub resides on the floor, and after adjusting all my boost setting lower, you can still hear/feel the surrounding low frequency with absolutely no distortion. Yea, it's a keeper.
Date published: 2013-11-05
Rated 2 out of 5 by from you get what you pay forI got this unit to replace a 5.5 inch sub that came stock in a Pontiac Fiero. I had to build a mounting plate to adapt the speaker to the enclosure opening. The speaker is ok for the money I guess but I was disappointed with the rigidity of the frame or centering of the voice coil in the magnet gap as received. The cone was not centered and the voice coil seems to rub at above low volumes. I'm not sure if the bolting distorted the frame or if it was just never centered properly. I have built several home speakers using JBL pro drivers and they are quite sturdy. Same thing for some Diamond Acoustics speakers I have mounted. I don't know of any smallish subs that are made that are really good units. I expected better from a $70 speaker though.
Date published: 2013-08-18
Rated 5 out of 5 by from Great bass driver for a 2.1 setupI originally wanted to use a similar 6.5" Tang-Band subwoofer, but the price on the 5.25" neodymium model sold the deal. WinISD suggested roughly a 0.36 cubic foot (10-11L) box, similar to PE's recommendation, but I ended up going with a slightly larger enclosure (12x12x12-inch external) and reducing the interior volume slightly with dense foam for about 0.50 cubic foot.Combined with a 2-inch diameter port at a rather longish (and folded) 20 inches, I get reliable performance from 35Hz on up, with a 1.5dB peak centered at 38Hz. Rather impressive to hear a driver that small go that low. I paired this driver with the Dayton 2.1 Class-D plate amp that PE also sells and ended up with a complete system that both looks and sounds quite nice at a very compact size.
Date published: 2013-06-03
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Product Q&A

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Tang Band W5-1138SM 5-1/4" Neodymium Subwoofer

Could you tell me the distance between mounting holes-- center to center --measured across the diameter, please? I'm trying to determine if they will require significant mod to replace the rear deck speakers in my car. Thanks very much

Asked by: stevie nicks
The screw holes are 145mm (5.708") on center measured diagonally.
Answered by: MattP
Date published: 2015-12-14

Hello, Im building a sub box for my '14 f150 super crew to go under the rear seat. I have two of these w5-1138's and want to know the enclosure and port volumes to tune them to the low 30's. I can use square or round ports. Thanks for your reply. 

Asked by: Burton
I would recommend 0.75 cubic feet total for both with a 3" diameter, 22" long port for a tuning frequency of 35 Hz.
Answered by: MattP
Date published: 2015-11-02

I am building a subwoofer tube. I have .2cbft to work with and some calculations have shown a 1" port length of ~ 6.5" long to get a frequency of 38hz. Does that sound correct? I want between 35-40hz and have limited available space. Cheers. 

Asked by: F150jh
Yes this volume and port size will work. There might be some port noise present at higher volume levels but if the subwoofer is placed in a hidden area it may not be audible.
Answered by: MattP
Date published: 2015-08-31

I need to replace a big box 12 Paradigm subwoofer in a room that is 12x18 feet. Can I run 4 of these in series parallel. What would a ported box look like size wise. I have a maximum set of dimensions which are 7x14x20.

Asked by: jpottsx1
A box with those dimensions will work if you can put an elbow in the port. A 4" diameter, 20" long port is recommended for a tuning frequency of 39 Hz.
Answered by: MattP
Date published: 2015-06-12

I wanted to make a small subwoofer to fill out the low end for my f150. I would like to use a 6" pvc pipe but I would like suggestions on what length would be best to get the most low end bass. Not sure if I want to go sealed or vented. Thanks!  

Asked by: F150jh
A sealed enclosure will only need a 7-1/2" length of pipe for the proper volume, but this yields an F3 of about 70 Hz. A vented enclosure would need to be 24" long with a 2" diameter, 15" long port for a tuning frequency of 38 Hz.
Answered by: MattP
Date published: 2015-06-08

Is this a freeair subwoofer

Asked by: Neo007
This will work relatively well free air but it will have limited extension below about 50 Hz.
Answered by: MattP
Date published: 2015-03-10
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