All systems go !
All systems go !
DRIVE UNITS BY MANUFACTURER:
P21WO-20-08
NO LONGER AVAILABLE
The Vifa P21WO-20-08 is a high quality bass speaker featuring an alloy chassis and a mica loaded polypropylene cone.
This high performance speaker has been in production for 3 decades and is one of the finest plastic coned drive units ever produced offering a very smooth and extended frequency response in bass reflex designs.
Very highly regarded with a text book frequency response to over 4 kHz; can be used in 2 way designs with a 25mm tweeter.
Suits many classic models including: Mission 770 Freedom, Argonaut, 7SD-89143 / P21WN-15-08.
Now made by Scanspeak in Denmark using the original Vifa tooling.
Resonant frequency (fs) | 28 Hz | Nominal impedance (Zn) | 8 Ω |
Mechanical Q factor (Qms) | 1.60 |
DC resistance (Re) | 5.7 Ω |
Electrical Q factor (Qes) | 0.41 |
RMS power handling | 80 W |
Total Q factor (Qts) | 0.33 |
Sensitivity (2.83V/1m) | 91 dB |
Equivalent volume (Vas) | 113L |
Chassis diameter | 215 mm |
Friendly technical support
40+ years in the trade
UK family run business
Excellent customer service
Quick dispatch
Swapped out the 30 yr old AlCap capacitors for the Audyn Q4 on Wills recommendation (along with a ferrofluid change). What a difference, added so much more definition and clarity. Very impressed. Audyns are a fair bit bigger size wise but fitted easily enough on the board and the access aperture on the TDL Studio 1's.
Good quality, fast postage, perfect! Thanks
Can fault the service and you always seem to have what others don’t, this can be critical when your hobby involves restoring vintage hifi .
Excellent driver and superb service and advice from Willy's hi-fi. Would certainly recommend and I will definitely be using again. Super fast delivery and great prices
They offer great advice genuinely helpful and knowledgeable.
Excellent service.
Very happy with this replacement part, especially once id fitted it correctly!! Sounds great so know where to go when the other one fails. 👍