HiFi-Woofer by Number One

SSP £42.99


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Item Information

HiFi bass-midrange speaker, 80WMAX, 8Ω Paper cone with special coating, rubber surround with optimised profile, extra wide range and linear radiation range free of resonance, the perfect equipment for modern 2-way combinations up to D´Appolito arrangements, also for the use as a midrange speaker in multi-way speaker systems.
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)
Resonant frequency (fs)38Hz
Max. frequency range f3-6,000Hz
Rec. crossover freq. (fmax.)3,500Hz
Music power 80WMAX
Power rating (P) 55WRMS
SPL (1W/1m)89dB
Suspension compl. (Cms)2.14mm/N
Moving mass (Mms)8.2g
Mech. resistance (Rms)1.0kg/s
Mech. Q factor (Qms)1.91
Electr. Q factor (Qes)0.39
Total Q factor (Qts)0.32
Equivalent volume (Vas)22 l
DC resistance (Re)5.7Ω
Voice coil induct. (Le)0.5mH
Voice coil diameter25mm
Voice coil formeraluminium
Voice coil winding height10mm
Air gap height6mm
Linear excursion (XMAX)±2mm
Eff. cone area (Sd)80cm2
Volume displacement (Vd)16cm3
Force factor (BxL)5.4Tm
Reference efficiency (No)0.3%
Magnet diameter72mm
Magnet weight 8oz.
Mounting cutout Ø 129mm
Mounting depth 65mm
Weight 0.75kg
Rec. net cabinet volume 
  Closed6 l
  Bass-reflex12.5 l