HiFi-Woofer With Twi by Number One

SSP £29.99


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Item Information

HiFi bass-midrange speaker, 2 x 60WMAX, 2 x 8Ω Dual voice coil and polypropylene cone with good midrange attenuation, suitable for both miniature subwoofers and powerful 2-way speaker systems as bookshelf speakers or very slim column speakers.Klang+Ton "... a real highlight for that price."
Packed Quantity
1 per pack
Manufacturer Number

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Delivery Information

For UK orders we offer a Free Delivery, Standard or Next Working Day delivery service.

We have separate delivery charges for Europe, North America, Japan and the Rest of the World based on the size, weight and destination of your order.

Please view our About Delivery page for full details.

Returns & Refunds

If an item is faulty or damaged on delivery and we are notified within 24 hours we will arrange for a replacement or a refund of the item - it needs to be within this time period for us to make claims with our couriers.

If you have simply changed your mind or no longer require the item(s), you must notify us within 7 days from receiving your order. The item(s) must be in their original unused and unopened packaging and be in a resalable condition for a full refund. You will need to pay for the cost of returning the item(s) and the item(s) remain your responsibility until we receive them.

Please view our Returns & Refunds page for full details.

Full Details

Impedance (Z) 2 x 8Ω
Resonant frequency (fs)40Hz
Max. frequency range f3-6,000Hz
Rec. crossover freq. (fmax.)4,000Hz
Music power 2 x 60WMAX
Power rating (P) 2 x 30WRMS
SPL (1W/1m)85dB
Suspension compl. (Cms)1.69mm/N
Moving mass (Mms)8.9g
Mech. resistance (Rms)0.7kg/s
Mech. Q factor (Qms)3.44
Electr. Q factor (Qes)0.48
Total Q factor (Qts)0.42
Equivalent volume (Vas)16 l
DC resistance (Re)2 x 7.5Ω/ 3.8Ω
Voice coil induct. (Le)2 x 0.6mH/ 0.6mH
Voice coil diameter20mm
Voice coil formeraluminium
Voice coil winding height10.5mm
Air gap height6mm
Linear excursion (XMAX)±2.25mm
Eff. cone area (Sd)95cm2
Volume displacement (Vd)21.4cm3
Force factor (BxL)4.2Tm
Reference efficiency (No)0.2%
Magnet diameter100mm
Magnet weight 13.3oz.
Mounting cutout Ø 123mm
Mounting depth 70mm
Weight 1.2kg
Rec. net cabinet volume 
  Closed10 l
  Bass-reflex20 l