Buyout Special

Tang Band W4-992C 4" Subwoofer 2 Ohm

Brand:| Model: W4-992C
This unique 4", 2 ohm subwoofer, from Tang Band, is designed to provide excellent bass response in a small package. A heavy-duty paper cone, rigid dustcap, and twin-roll surround allow linear and distortion-free cone movement. Save up to 56% off the original retail price!
  • Heavy-duty 4" subwoofer with under spider venting
  • Unique multi-roll rubber surround for controlled excursion
  • Low Qts design for use in ported subwoofer designs
  • 2 ohm impedance for use in sets of two, four, or eight
Part # 
Weight: 1.9000 lbs.  
List Price$29.99
Regular Price$23.00
You Save39%
Special Price
Buy 12-47 $12.48
Buy 48-up$9.96
Part # 299-825
Qty:  EA
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Product Details

Tang Band W4-992C 4" Subwoofer 2 Ohm

Tang Band designed the unique W4-992C 4", 2 ohm subwoofer speaker to provide excellent bass response in a small package. While it may look similar to the other 4" drivers, the cone, voice coil, surround, and motor have been optimized for higher-power bass applications. High power tinsel leads and venting under the spider yield maximum thermal capacity. At the same time, a heavy-duty paper cone, rigid dustcap, and twin-roll surround allow linear and distortion-free cone movement.

This subwoofer is great for mini 2.5 or 3-way speakers, a 2-way design with a robust tweeter, and as a miniature computer subwoofer. The 2 ohm impedance allows for a wide array of wiring configurations: wire four in series for an 8 ohm load, eight in series-parallel for a 4 ohm load for maximum bass in minimum space. Perfect for modern audio applications, such as a subwoofer speaker bar to suppliment the bass in thinner sound bars. Save up to 56% off the original retail price through this Parts Express exclusive buyout. Hurry, quantities are limited!

Product Specifications
  • Nominal Diameter4"
  • Power Handling (RMS)28 Watts
  • Power Handling (max)56 Watts
  • Impedance2 ohms
  • Frequency Response55 to 3,000 Hz
  • Sensitivity86 dB 2.83V/1m
  • Voice Coil Diameter1"
Thiele-Small Parameters
  • Resonant Frequency (Fs)52 Hz
  • DC Resistance (Re)1.93 ohms
  • Voice Coil Inductance (Le)0.57 mH
  • Mechanical Q (Qms)4.53
  • Electromagnetic Q (Qes)0.40
  • Total Q (Qts)0.37
  • Compliance Equivalent Volume (Vas)0.16 ft.³
  • BL Product (BL)6.43 Tm
  • Diaphragm Mass Inc. Airload (Mms)7g
  • Maximum Linear Excursion (Xmax)3.5 mm
  • Surface Area of Cone (Sd)62 cm²
Materials of Construction
  • Cone MaterialPaper
  • Surround MaterialRubber
  • Basket / Frame MaterialSteel
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter4.50"
  • Baffle Cutout Diameter3.50"
  • Depth2.50"
  • Bolt Circle Diameter4.25"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.04 ft.³
  • Sealed F3113 Hz
  • Vented Volume0.10 ft.³
  • Vented F364 Hz
Tang Band W4-992C 4" Subwoofer 2 Ohm
  • BrandTang Band
  • ModelW4-992C
  • Part Number299-825
  • UPC848864015187
  • Product CategorySubwoofer Drivers
  • Unit of MeasureEA
  • Product Rating
    (3 Reviews)
  • Weight1.9000 lbs.
  • California Prop 65

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

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Tang Band W4-992C 4" Subwoofer 2 Ohm
Tang Band W4-992C 4" Subwoofer 2 Ohm is rated 4.6667 out of 5 by 3.
Rated 5 out of 5 by from Excellent Driver!This driver supported all of the requirements. Low tuning frequency in a large enclosure really brought out the best in these.I wired 4 in series up to a Lepai 2.1 amp(2x40W, 1x68W) and it rocked the lower end better than the high-ends. It was a bit over kill to have four of these but it is a beautiful change in pace from the large sub-woofers usually seen in cabinets.The only difficulty I had was cutting the holes for these to slide into. After I asked a question on this page after I was unsure. It was answered with the reassurance that it indeed was, "3 1/2" inches. Let me tell you, I measured not only twice and cut once but I even bought the Jasper Jig and cut a perfect 3 1/2" hole. Only to be greeted by an opening too small. I measured again, and it was 3 1/2" on the dot. It's kind of hard to make a High Fidelity system when 4 out of 8 circle cuts are cut with a jigsaw. I was very disappointed in the lack of drawings and technical drawings for this driver. It ended up delaying my project a day behind, and it was pushed to the next weekend.I ended up cutting a hole 3 5/8" and the driver fit snug in place. I almost didn't have to screw it in! Love the product and the project came out great!
Date published: 2014-04-04
Rated 4 out of 5 by from Solid speakerPut two of these in a .3cuft ported box, for sub duty on my 2.1 computer build. Works wonderful, lp at 125hz.
Date published: 2014-02-20
Rated 5 out of 5 by from Very tight bassThese are great little speakers, I also have the larger 5inch version that PE had on buyout a while back. Don’t let the size fool you they will hit; I have 4 wired in parallel and they don’t disappoint!
Date published: 2014-01-22

Product Q&A

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who own this product or have experience with it.
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Tang Band W4-992C 4" Subwoofer 2 Ohm

Can you recommend a 2 ohm tweeter to wire in series to get a 4 ohm load per channel. Thanks

Asked by: saab96user
Unfortunately you cannot series wire a tweeter with a woofer. In order to achieve a proper 4 ohm load you will have to wire two woofers together.
Answered by: MattP
Date published: 2014-07-10

I built two boxes with 0.2 cu ft per box for two speakers per box with a port of 1.5" x 8".  Can I shorten or extend the port on one box to tune to a different Hz to get high bass output on different types of music?

Asked by: loveBASS
Yes changing the port length will change the tuning frequency, long will tune lower and shorter will tune higher.
Answered by: MattP
Date published: 2014-07-10

I plan on building a little Bluetooth "boombox" with this and couple 3 to 4 inch full range drivers. can this driver share an enclosure with the others? Also can you recomend an amp that will run on 10v? Thanks in advance

Asked by: KungFuSamurai
I would not recommend having this share the same airspace as the full range drivers. Since this driver is 2 ohms, we do not have an amplifier that will drive it by itself, you will need to wire two in parallel to create a 4 ohm load.
Answered by: MattP
Date published: 2014-07-09

I was considering using a pair of these in a sealed sonotube enclosure. Looks like most of the recommendations are for a ported enclosure. Is a sealed tube a bad idea with these?

Asked by: Bullitt
Ported is the most practical option if you want any appreciable amount of bass from them. Sealed will work but a high pass is required and they will not play anything below about 120Hz.
Answered by: MattP
Date published: 2014-07-01

I have a LEPAI LP-838 and I'd like to use the Tang Band W4-992C on the subwoofer channel.  The LEPAI LP-838 specs a minimum 4 ohms on each channel.  The question is, is the Tang Band W4-992C at 2 ohms safe to run on this amp?

Asked by: LarryT
Unfortunately no, you will want to have two of these woofers wired in series to provide a safe load for the amplifier.
Answered by: MattP
Date published: 2014-06-24

Will these drivers work well in an lower tuned vented enclosure? I keep seeing recommendations in the 50-55Hz range, but what about tuning down into the high 30's? I was thinking 8 drivers in a vehicle, instead of the common single 10 or 12.

Asked by: codycr6
The lowest I would recommend tuning these would be about 40 Hz for the sake of power handling and cone excursion. Eight drivers in 1.3 cubic feet with a 4" diameter, 15" long port will achieve this.
Answered by: MattP
Date published: 2014-06-19

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