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All systems go !
DRIVE UNITS BY MANUFACTURER:
C173-6-191
UK STOCK ITEM !
The Accuton C173-6-191 Bass / Midrange is an esoteric 7 inch drive unit primarily intended for high end compact bookshelf monitors and slim floorstanding designs. Developed from the C173-6-095 this unit features a high but narrow profile surround resulting in an improved maximum excursion of 10mm - good SPLs from compact enclosures.
This state of the art driver features a ceramic cone, soft rubber surround and a powerful motor system. The 38mm ultra lightweight titanium voice coil former ensures good midrange resolution.
The spider, pole and voice coil former are fully ventilated for minimal compression. This 6 ohm unit has a power rating of 120 watts .
Full datasheets can be downloaded from the bottom of this page.
Vented:
Vb: 12L, Port diameter: 50mm, Length: 220mm, Fres: 45Hz, F-3dB: 50Hz, Q: 0.58 (optimal)
Vb: 18L, Port diameter: 50mm, Length: 150mm, Fres: 43.5Hz, F-3dB: 41Hz, Q: 0.50 (extended bass)
Vb: 10L, Port diameter: 50mm, Length: 240mm, Fres: 48Hz, F-3dB: 52Hz, Q: 0.61 (0.7dB Ripple @ 100Hz)
Infinite baffle:
Vb: 6.5L, -13dB @ 40Hz, F-3dB: 76Hz, Q: 0.71 (typical)
Vb: 18L, -10dB @ 40Hz, F-3dB: 85Hz, Q: 0.50 (extended bass)
A matching passive radiator is available : Accuton P173
Resonant frequency (fs) | 32Hz | DC resistance (Re) | 5.8Ω |
Mechanical Q factor (Qms) | 4.9 | Power handling | 120W |
Electrical Q factor (Qes) | 0.29 | Sensitivity (2.83V/1m) | 88dB |
Total Q factor (Qts) | 0.27 | Chassis diameter | 173mm |
Equivalent volume (Vas) | 33L | Cutout diameter | 146mm |
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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