Tang Band W4-1720 4" Underhung Midbass Driver

Tang Band W4-1720 4" Underhung Midbass Driver

Brand:| Model: W4-1720
Overview
The W4-1720 4" midbass features a long throw, underhung 1-1/4" voice coil driven by a massive ferrite magnet structure.
Part # 
264-872
Weight: 4.1 lbs.  
IN STOCK
List Price$68.99
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$51.20
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Part # 264-872
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Product Details

Tang Band W4-1720 4" Underhung Midbass Driver

A shorting ring on the polepiece is responsible for the speaker's extremely low levels of second and third order harmonic distortion. This impressive motor is coupled to an optimized paper cone with rubber surround, supported by a cast aluminum frame.



Product Specifications
  • Nominal Diameter4"
  • Power Handling (RMS)30 Watts
  • Power Handling (max)60 Watts
  • Impedance4 ohms
  • Frequency Response60 to 8,000 Hz
  • Sensitivity86 dB 1W/1m
  • Voice Coil Diameter1.25"
Thiele-Small Parameters
  • Resonant Frequency (Fs)60 Hz
  • DC Resistance (Re)3.8 ohms
  • Voice Coil Inductance (Le)0.04 mH
  • Mechanical Q (Qms)2.33
  • Electromagnetic Q (Qes)0.51
  • Total Q (Qts)0.42
  • Compliance Equivalent Volume (Vas)0.21 ft.³
  • Mechanical Compliance of Suspension (Cms)0.13 mm/N
  • BL Product (BL)3.82 Tm
  • Diaphragm Mass Inc. Airload (Mms)5g
  • Maximum Linear Excursion (Xmax)5 mm
  • Surface Area of Cone (Sd)57 cm²
Materials of Construction
  • Cone MaterialPaper
  • Surround MaterialRubber
  • Basket / Frame MaterialCast Aluminum
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter4.95"
  • Baffle Cutout Diameter3.75"
  • Depth3.25"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.08 ft.³
  • Sealed F3114 Hz
  • Vented Volume0.19 ft.³
  • Vented F360 Hz
Tang Band W4-1720 4" Underhung Midbass Driver
  • BrandTang Band
  • ModelW4-1720
  • Part Number264-872
  • UPC844632069604
  • Product CategoryWoofers
  • Unit of MeasureEA
  • Product Rating
    (15 Reviews)
  • Weight4.1 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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Reviews

Tang Band W4-1720 4" Underhung Midbass Driver
Tang Band W4-1720 4" Underhung Midbass Driver is rated 4.8667 out of 5 by 15.
Rated 5 out of 5 by from amazing 4 inch speakerHave had for about a month. Building into a BOOM box with 6.5L per speaker (ported). Really good upper bass, excellent mod range. lower bass is strong and surprisingly detailed. In a boom box, more tan adequate bass. very heavy. Someone compared these to scan speak quality. I would agree very close at a fraction of the cost.Very impressed!
Date published: 2014-05-21
Rated 5 out of 5 by from Incredible sound!Paired this with a Dayton silk dome tweeter. Crossed at 2,500 Hz. Sound was unbelievable...I pushed it too hard and blew it. Already ordered the replacement. These are awesome drivers!
Date published: 2014-03-31
Rated 5 out of 5 by from Does what no other driver canIn ~0.25 cubic foot tuned to 55Hz, this driver gets down into the 40's! Not only does it get there, but it sounds very good up to the 2500Hz crossover point I selected. After modeling a slew of small drivers based on their T/S parameters, I'm confident that there is not a better driver for (almost) full range near field monitors in such small cabinets. Yes, they have their limitations but I'm sure there are many people like me that want a nice sounding desktop system while in the office for near-field listening. They handle enough power to get too loud for me to listen to at a seating location 2.5 feet away. While the driver could easily cross higher, I chose 2.5kHz since the listening position is close and I wanted to reduce error. I did try a 2nd order crossover and didn't like it as much as LR4 but the XT25 tweeter I'm using doesn't have the best performance down low. I personally feel like a dedicated subwoofer would be detrimental for music listening unless you regularly listen to pipe organs, use these in a big room or just want to play loud. Having used many >$200/piece mid-bass drivers, this little 4" driver for around $50 did more than surprise me. The midrange performance is top notch.
Date published: 2013-08-19
Rated 5 out of 5 by from Great driver, clean, fullVery clean mids and a surprising amount of low end extension. Super beefy motor and overall very well made. Check the voice coil leads as they may be close enough to the spider that they could slap at full extension, but just move them a bit and you're fine. At the sale price, I don't think there's a 4" driver that can touch it in performance.
Date published: 2012-03-19
Rated 5 out of 5 by from Drop-in replacement driver for 5" Bazooka tubesI used these to replace blown drivers in some old 5" Bazooka vented tubes (discontinued long ago). They were literally a drop-in replacement with the mounting holes even lining up. No modification required to the driver or enclosure.They're probably too low Q for the enclosure, but this driver gave those old tubes a new life, and I was able to enjoy bass in my car again.
Date published: 2012-03-03
Rated 5 out of 5 by from Nice replacement for TEAC LX-600 midbass speakerPurchased a "new" and "unopened" pair of TEAC LX-600 indoor/outdoor speakers on eBay. They arrived, opened of course, with one speaker blown.Got these as replacements and they dropped right in and sound really, really good. They do not disappoint. Very impressed with the sound quality even the lower bass reproduction.Very nicely done.
Date published: 2011-12-04

Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
Tang Band W4-1720 4" Underhung Midbass Driver

1 Is a sealed or vented box preferred? 2. what is the optimum size.3 recommended crossover? 4. vented or sealed subwoofer? 5. Size of box?

Asked by: bernieD
Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2014-08-12

I am planning a 5.1 surround sound system using 3 Tang W4 speakers in MTM configuration with a Planer PT2C ribbon tweeter. The rear speakers will use only one Tang. The subwoofer I have is an AURA 18" unit I bought from you several years ago.

Asked by: bernieD
Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2014-08-12

I plan to use these units in an MTM configuration with a Dayton electrostatic tweeter. Would you recommend a sealed or vented cabinet What would be the optimum size? What is the recommended crossover.

Asked by: bernieD
Cabinet volume would need to be 0.55 cubic feet for both with a 2" diameter, 6-1/2" long port for a tuning frequency of 48 Hz. A crossover cannot be recommended without knowing which tweeter you plan on using. Please email or call us with any further questions about the design.
Answered by: MattP
Date published: 2014-07-01

Would these work well with Part # 270-018 tweeters crossed at 4500hz with a dayton two way Part # 260-148? I want to build a small sealed two way system for use with a 25w x2 t amp, will the tweeters have to much sensitivity?

Asked by: Maxfappington
This combination will work, although the tweeter will be a bit more sensitive. I would recommend padding it 4-6 dB overall for a smoother response.
Answered by: MattP
Date published: 2014-05-20

My plan is a 2.1 speaker config, use semi portable system easily moved outside. 2 Tang Band 4” W4720 paralleled in each box, box pref not partitioned, + Goldwood GT-510 1" Tweeter, crossover 120-2500hz. Enclosure volume/ports what would you suggest?

Asked by: Leethal
I would recommend an enclosure volume of .65 gross, with a 2-1/2" diameter port that is 8-1/2" long for a tuning frequency of 47 Hz. Bear in mind two of these drivers in parallel will yield a 2 ohm load.
Answered by: MattP
Date published: 2014-05-01

how might this woofer perform in a setup similar to "The Stentorians" diy project?

how might this woofer perform in a setup similar to "The Stentorians" diy project? also, how do they perform at high volumes?
Asked by: munki114
This woofer would be a good candidate for a similar project, however, I wouldn't suggest using this woofer as a "drop-in" replacement for the Stentorians. The differences would require a re-work of the enclosure and crossover. This product performs well at high volume; using six units per cabinet would be very effective at producing high volume.
Answered by: RussR
Date published: 2012-05-16

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