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B&C 8PS21 8" Woofer

Brand:|Model: 8PS21|Part # 294-654
The B&C Speakers 8PS21 8" woofer's long linear excursion provides exceptional LF performance when installed in compact bass-reflex enclosures.
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List Price$176.36
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Part # 294-654
  • Excellent bass performance for a woofer of this size
  • Copper ring in the magnetic circuit reduces distortion/extends HF response
  • High power handling

Product Details

B&C 8PS21 8" Woofer

B&C's 8PS21 8" woofer features a 2" copper voice coil on a Kapton® former, die cast frame, ceramic ferrite magnet, and a 200 watts RMS power handling rating.  A copper ring in the 8PS21's magnetic circuit reduces distortion and extends high frequency response up to 3 kHz. The 8PS21 is an ideal compact pro woofer choice when used singly or in multiples.

Product Specifications
  • Nominal Diameter8"
  • Power Handling (RMS)200 Watts
  • Power Handling (max)400 Watts
  • Impedance8 ohms
  • Frequency Response70 to 3,000 Hz
  • Sensitivity94 dB 1W/1m
  • Voice Coil Diameter2"
Thiele-Small Parameters
  • Resonant Frequency (Fs)73 Hz
  • DC Resistance (Re)5.4 ohms
  • Voice Coil Inductance (Le)0.5 mH
  • Mechanical Q (Qms)4.2
  • Electromagnetic Q (Qes)0.36
  • Total Q (Qts)0.33
  • Compliance Equivalent Volume (Vas)0.5 ft.³
  • BL Product (BL)12.6 Tm
  • Diaphragm Mass Inc. Airload (Mms)23g
  • Maximum Linear Excursion (Xmax)5 mm
  • Surface Area of Cone (Sd)220 cm²
Materials of Construction
  • Cone MaterialPaper
  • Surround MaterialCloth
  • Voice Coil Wire MaterialCopper
  • Voice Coil FormerKapton® / Polyimide
  • Basket / Frame MaterialCast Aluminum
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter8.8"
  • Baffle Cutout Diameter7.4"
  • Depth3.6"
  • Bolt Circle Diameter8.3"
  • # Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.08 ft.³
  • Sealed F3189 Hz
  • Vented Volume0.2 ft.³
  • Vented F3115 Hz
B&C 8PS21 8" Woofer
  • BrandB&C Speakers
  • Model8PS21
  • Part Number294-654
  • UPC844632002045
  • Product CategoryPro Woofers, Subwoofers & Midrange Speakers
  • Unit of MeasureEA
  • Product Rating
    (4 Reviews)
  • Weight8.4 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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B&C 8PS21 8" Woofer
B&C 8PS21 8" Woofer is rated 5.0 out of 5 by 4.
Rated 5 out of 5 by from Scan Speak on steroidsI call this driver "Scan Speak on steroids." It is a very clean and neutral driver with high sensitivity and decent xmax. Unlike many pro drivers, it doesn't have an ugly front gasket that needs to be hidden, although the octagonal shape adds some difficulty in flush mounting, and with a thick 11mm face plate it does need flush mounting. Provided you have a tweeter that can handle a crossover around 1.5 - 2k, this is an excellent driver for a 2 way covering upwards of 80 Hz.The casting is a little rough on the mounting face plate. That means if you have a nice neat flush mount arrangement, you will have to allow a small gap. The paint finish is also not as robust as it could be. Despite being well packaged, some of the paint had come off in transit. It isn't bad enough for me to be concerned, but I haven't had this problem with typical hifi drivers.I will be using this driver for some on-wall surrounds, but I'm impressed enough with the sound that I could be happy with this as a main speaker.
Date published: 2011-09-09
Rated 5 out of 5 by from Great Driver !I mated a pair of these to the Morel CAT378 (same sensitivity)and shifted the woofer forward 3/4" for better time alignment with 2kHz. 24 db LR crossover. These are by far my best sounding speakers to date. They do not go very deep so you will need a separate sub. My design was intended to allow me to use mine as Stage monitors or stand mount. I prefer the sound of these monitors using this driver over my churches older and long ago discontinued RCF ART300A's. I recently used this setup at and outdoor wedding and an coffee shop gig. Using this set up with a Sub using the B&C 12PS100 I'd say is the best small venue sound system I've heard to date. I credit this 8" driver for the very smooth midrange I've not had in other speakers and setups. The efficiency is less than most Pro stuff but the quality I got from this exceeds that of any pro stuff I've been able to use to date. I look forward to building more with these drivers.
Date published: 2010-12-13
Rated 5 out of 5 by from Excellent price/performance ratio.The 8PS21 is very nicely built, good fit and finish.I'm currently using the 8PS21 mated with the ME-10 and DE-10 and together they make a outstanding setup.They provide great clarity and detail/resolution without becoming fatiguing during long periods of listening time.Sensitivity is high but bass extension suffers a bit, but it's not bad if used with a subwoofer to take care of the low end.Test results can be seen at
Date published: 2008-10-17
Rated 5 out of 5 by from Amazing fidelity and power handlingThese are the drivers used in the QSC I H28 speakers. I bought a pair three months ago and have been amazed and delighted ever since. They handle 200 watts at 8 ohms without a hint of distortion. In conjunction with the compression drivers they make a fantastic combination. Detailed, flat, nuanced, smooth, clear, LOUD! In this price range, it is unlikely you could get a better woofer.
Date published: 2008-04-17
  • 2016-02-13T06:40CST
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B&C 8PS21 8" Woofer

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