Tang Band W4-656SC 4" Shielded Driver

Brand:|Model: W4-656SC
The textured PPM cone, rubber surround, large cast frame, and large shielded motor structure give this woofer a sense of quality that is not found on most small drivers.
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List Price$42.83
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Part # 264-820

Product Details

Tang Band W4-656SC 4" Shielded Driver

The textured PPM cone, rubber surround, large cast frame, and large shielded motor structure give this woofer a sense of quality that is not found on most small drivers. A large mechanical excursion limit allows this woofer to produce prestigious amounts of bass for a woofer of its size. In addition, the fully sealed cone structure makes this driver very durable and usable in moist environmental conditions.

Product Specifications
  • Nominal Diameter4"
  • Power Handling (RMS)25 Watts
  • Power Handling (max)50 Watts
  • Impedance8 ohms
  • Frequency Response65 to 12,000 Hz
  • Sensitivity88 dB 1W/1m
  • Voice Coil Diameter1"
  • Magnet Weight11 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)65 Hz
  • DC Resistance (Re)6 ohms
  • Voice Coil Inductance (Le)0.49 mH
  • Mechanical Q (Qms)2.39
  • Electromagnetic Q (Qes)0.39
  • Total Q (Qts)0.33
  • Compliance Equivalent Volume (Vas)0.2 ft.³
  • Mechanical Compliance of Suspension (Cms)1.25 mm/N
  • BL Product (BL)5.41 Tm
  • Diaphragm Mass Inc. Airload (Mms)4.47g
  • Maximum Linear Excursion (Xmax)3 mm
  • Surface Area of Cone (Sd)570 cm²
Materials of Construction
  • Cone MaterialPoly
  • Surround MaterialRubber
  • Voice Coil Wire MaterialCCA
  • Voice Coil FormerKapton® / Polyimide
  • Basket / Frame MaterialCast Aluminum
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter4.94"
  • Baffle Cutout Diameter3.76"
  • Depth3.27"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.03 ft.³
  • Sealed F3159 Hz
  • Vented Volume0.09 ft.³
  • Vented F394 Hz
Tang Band W4-656SC 4" Shielded Driver
  • BrandTang Band
  • ModelW4-656SC
  • Part Number264-820
  • UPC844632019470
  • Product CategoryMidrange / Midbass Drivers & Full-Range Speakers
  • Unit of MeasureEA
  • Product Rating
    (17 Reviews)
  • Weight3 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.

View similar products to the Tang Band W4-656SC 4" Shielded Driver
in the Midrange / Midbass Drivers & Full-Range Speakers product category.


Tang Band W4-656SC 4" Shielded Driver
Tang Band W4-656SC 4" Shielded Driver is rated 4.2353 out of 5 by 17.
Rated 5 out of 5 by from Great audio for Ham Ram Radio.I am using this Tang Band 4" driver as external speaker for my Yaesu and Icom transceiver. I installed this to my orginal Yaesu SP-8 external speaker. I removed the original speaker and luckily the size of this tang Band is perfect. If the band condition ( propagation of sun spot ) is good the way I listen to radio station I am talking with, is something he is only talking infront of me. Because the voice sound is very clear.
Date published: 2014-05-23
Rated 5 out of 5 by from Lucky to findAfter lengthy searching for mid replacements in my JBL 4800 floor speakers (mfd ~1988), I found these - just a hair under 5" in dia. They are a little overkill compared to the originals but sound great! Excellent vocal and instrument reproduction.
Date published: 2013-10-12
Rated 4 out of 5 by from Good sound, but not quite ideal for sealed designsI used these drivers in a 2.1 bi-amped configuration with active 4th-order crossover at 112 Hz splitting the signal between an 8" subwoofer and satellites, and passive 1st-order series crossover at 4000 Hz splitting the signal between these midrange drivers and dome tweeters in the satellites. Subwoofer and satellites are both sealed boxes stuffed with damping material for best transient response.The sound is nice (I won't bore you with useless and subjective descriptors), but the Fs value (65 Hz) and low Qts value (0.33) means in a sealed box, the F3 (-3 dB) point will never go below about 139 Hz, no matter what box volume is used. I should have factored that into the design from the beginning, but I can live with the small dip in overall system output around 125 Hz and correct with EQ. I've read that our ability to distinguish directionality of sound diminishes below 120 Hz, so I wanted to keep the lower crossover point below this frequency (as the subwoofer is inherently mono). Raising the crossover point to 150+ Hz would eliminate this dip in system response.These drivers did not come with a foam backing ring, so I had to construct my own with foam tape and a knife to ensure a good seal. I deduct one star for this omission.
Date published: 2013-06-10
Rated 5 out of 5 by from Hear what you have been missingI have recently upgraded a 30 yr old warfdale speaker set with new crossovers and reconed woofer yet there still the sound I was looking for was missing. Well this driver was the answer. The sound is brilliant and powerful without distortions at high power levels. Very happy with thier performance so far.
Date published: 2012-01-06
Rated 5 out of 5 by from Perfect for center speakerI made a center speaker with these woofers and added hivi 4 inch full range with serial and parallel connections. The result is success. Incredible bass coming out of these tiny woofers. Their size is very small but if you try 4 or 6 of them they beat any 12 inch woofers:) they are very clear and balanced I love them more than all the green tea in China:) I highly recommend who use them in a center or stereo tower speaker. I used them with Parts express 3-Way 8 Ohm 800/4,500 Hz 200W crossover It is wonderful thanks to parts express.
Date published: 2011-11-07
Rated 4 out of 5 by from Great midrange.Great flat sounding driver with a light cone. Just difficult to work with, with the thick terminals. Price + Made in China = Appreciate your job.
Date published: 2011-11-01
  • 2015-10-08T07:08CST
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Product Q&A

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Tang Band W4-656SC 4" Shielded Driver

Power Handling of Tang Band W4-656SC 4" Driver

The listing for the power handling on this web site is almost twice the power handling listed in the 2012 master catalog, page 185. Can you clarify? Thanks
Asked by: Alkarr
I apologize for the typographical error on our part. The description has been corrected to reflect accurate information.
Answered by: RussR
Date published: 2012-04-28
  • 2015-10-08T07:59CST
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