All systems go !
All systems go !
DRIVE UNITS BY MANUFACTURER:
C158-6-851
UK STOCK ITEM !
The Accuton C158-6-851 Bass / Midrange drive unit features an ultra hard ceramic (Sapphire) 120mm cone inside a 158mm diameter chassis.
Designed specifically for small monitors and slim floor standing designs, this esoteric unit has a soft rubber suspension and a large 10mm max. excursion allowing it to produce very good volume levels from small footprint enclosures.
A high power pure copper voice coil and ventilated titanium voice coil former yield a substantial power rating of 120 watts - quite high for a domestic driver of these dimensions.
Full datasheets can be downloaded from the bottom of this page.
Vented:
Vb: 10L, Port diameter: 40mm, Length: 145mm, Fres: 46Hz, F-3dB: 47Hz, Q: 0.58
Vb: 15L, Port diameter: 40mm, Length: 100mm, Fres: 43Hz, F-3dB: 41Hz, Q: 0.50
Vb: 6.5L, Port diameter: 40mm, Length: 220mm, Fres: 48Hz, F-3dB: 54Hz, Q: 0.61
Infinite baffle:
Vb: 2.3L, -16dB @ 40Hz, F-3dB: 98Hz, Q: 0.71
Vb: 7L, -14dB @ 40Hz, F-3dB: 96Hz, Q: 0.50
Resonant frequency (fs) | 30Hz | DC resistance (Re) | 6.3Ω |
Mechanical Q factor (Qms) | 5.1 | Power handling | 120W |
Electrical Q factor (Qes) | 0.30 | Sensitivity (2.83V/1m) | 88dB |
Total Q factor (Qts) | 0.27 | Chassis diameter | 158mm |
Equivalent volume (Vas) | 26.4L | Cutout diameter | 137mm |
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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