HiFi-Woofer by Number One


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Item Information

Speakers with Polypropylene ConeWith solid aluminium diecast basket, partly with flat wire voice coil.High-power HiFi bass speaker, 250WMAX, 8Ω With 8-hole screw connection and very high efficiency (flat wire coil), a high-quality speaker for HiFi combinations of high level requirements, well-approved also as a replacement of older high-quality bass speakers!Klang+Ton "For everyone who loves very low bass reproductions!"
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)23Hz
Max. frequency range f3-2,000Hz
Music power 250WMAX
Power rating (P) 125WRMS
SPL (1W/1m) 94dB
Suspension compl. (Cms)0.77mm/N
Moving mass (Mms)62g
Mech. Q factor (Qms)2.25
Electr. Q factor (Qes)0.30
Total Q factor (Qts)0.27
Equivalent volume (Vas)305 l
DC resistance (Re)6.3Ω
Force factor (BxL)14Tm
Voice coil induct. (Le)1.4mH
Voice coil diameter50mm
Voice coil formerKapton
Linear excursion (XMAX)±5mm
Eff. cone area (Sd)530cm2
Magnet weight 50oz.
Weight 4.5kg