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DRIVE UNITS BY MANUFACTURER:
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.
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
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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