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DRIVE UNITS BY MANUFACTURER:
UW 1258 Woofer
Categories: 10-15 inch Bass Speakers Morel Subwoofers
The Morel UW 1258 is a dedicated 12" very high power, long throw bass speaker from the Ultimate Subwoofer range. This rugged drive unit features the Morel Uniflow™ Aluminium diecast chassis, a high flux double Ferrite magnet and a huge 5.1" / 130mm voice coil assembly wound with Hexatech Aluminium wire. The Accucenter™ self centering pulp fibre cone/cap is a one piece assembly offering high rigidity and excellent internal damping.
This drive unit features PFS™ Progression Field Symmetry: under extreme conditions, the spider and surround are engineered to act as progressive shock absorbers, preventing voice coil displacement and bottoming out - this improves voice coil linearity and maximum excursion.
The pole piece is vented (very large) for minimal compression under heavy drive conditions and power handling is very high at 800W nominal, 3000W short term peak. A full datasheet can be downloaded from the bottom of this page.
Resonant frequency (fs) | 21 Hz | Nominal impedance (Zn) | 8 Ω |
Mechanical Q factor (Qms) | 1.88 | DC resistance (Re) | 6.8 Ω |
Electrical Q factor (Qes) | 0.56 | RMS power handling | 800W |
Total Q factor (Qts) | 0.43 | Sensitivity (2.83V/1m) | 87 dB |
Equivalent volume (Vas) | 138.38 L | Chassis diameter | 305 mm |
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Wow, just had my Mission 753 upgrades of crossover and also tweeters. What a difference it’s made! The high frequencies are more refined and OMG, the separation and richness of mud and bass if awesome…..much thanks to Willy’s for giving my 753’s a new life 😀😀
Excellent advice from will as usual and exactly what I wanted. These have improved the sound of my current speakers and taken them to another level. Sounds superb I can hear tonal difference's between things that I never heard before. Superb bass drivers dig so deep.
As usual will has been outstanding.
Brilliant to deal with always helpful and gives great service.
What a brilliant capacitor, from first listen exceptional clarity and depth. Bargain will be buying more.
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