Scanspeak Discovery 18W/4434G00 Midwoofer
18W / 4434G00
Discovery 18cm 8 Ohm Bass / Midrange. NRSC cone.
This 180mm / 7" bass-midrange unit features the patented woven glassfibre NRSC cone offering a very benign and smooth sound. The ferrite magnet assembly is aluminium ringed (sometimes called Faraday rings) to control rising impedance at higher frequency which in turn offers a wider useable bandwidth. This unit is a solid choice for 2 way DIY designs and also finds many applications as a high quality replacement drive unit.
Combining some advanced features, this is a great performer at this price point. Available in 4 and 8 ohms.
- Coated NRSC Fibre Glass Cone
- High efficiency ~91dB @ 2.83V
- Die cast Aluminium Chassis vented below spider
- Aluminium Ringed Magnet System
- Low Damping SBR Rubber Surround
This woofer is 4 Ohms ; the 8 Ohm version is here : 18W/8434G00
|Resonant frequency (fs)||47 Hz||Nominal impedance (Zn)||4 Ω|
|Mechanical Q factor (Qms)||7.81||DC resistance (Re)||3 Ω|
|Electrical Q factor (Qes)||0.37||RMS power handling||55 W|
|Total Q factor (Qts)||0.35||Sensitivity (2.83V/1m)||90.9 dB|
|Equivalent volume (Vas)||20.7L||Chassis diameter||180 mm|
Here's the full datasheet:
Priced as singles, including VAT. Sold as pairs only (2 units).