Accuton C158-6-851 Midrange 6 Ohm 1 piece
The Accuton C158-6-851 is a 158 mm bass-midrange driver for compact speakers or slim floorstanding speakers. It features a 38 mm titanium voice coil former, which is driven by a 120 mm ferrite drive.
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Short description:
15 cm bass-midrange driver with ceramic cone. It has a rear vented voice coil.
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Mechanical data:
Overall diameter / front plate 8158 mm.
cut-out 137 mm
minimum front panel thickness 6 mm
overall height 90 mm
Magnet height 42 mm
Magnet diameter 120 mm
Screw holes Screws Din 7984 / Ø 4.50 mm
Weight (pair) 5.2 Kg
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Thiele-Small Parameter:
Sensitivity Spl 88 dB
Resistance(DC) Re 6.07 Ohm
Free air resonance frequency Fs 31 Hz
Equivalent volume Vas 25.7 Ltr
Mechanical quality Qms 5.09
Electrical Q factor Qes 0.29
Overall quality Qts 0.28
Effective diaphragm area Sd 113 cm2
Moving mass Mms 18.5 Gr
Membrane stress compliance Cms 1.42 mm/N
Mechanical resistance
Rms 0.71 Kg*S
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Voice coil parameters:
Power handling P 120 Watt
Impedance 6 Ohm
Linear excursion Xmax +/-5 mm
Voice coil diameter 38 mm
Voice coil carrier material Ti
Conductor material Cu
Voice coil inductance Le 0.77 mH
Force factor Bl 8.7 N/A
Drive type Overhanging
Ferrofluid In air gap No
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Enclosure Recommendation Closed:
Vb: 2.3L, -16 dB @ 40 Hz, F-3 dB: 98 Hz, Q: 0.71 (typical).
Vb: 7L, -14 dB @ 40 Hz, F-3 dB: 96 Hz, Q: 0.50 (extended bass)
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Enclosure Recommendation
Bass Reflex: Vb: 10L, port diameter: 40 mm, length: 145 mm, Fres: 46 Hz, F-3 dB: 47 Hz, Q: 0.58 (typical).
Vb: 15L, port diameter: 40 mm, length: 100 mm, Fres: 43 Hz, F-3 dB: 41 Hz, Q: 0.50 (extended bass)
Vb: 6.5L, port diameter: 40 mm, length: 220 mm, Fres: 48 Hz, F-3 dB: 54 Hz, Q: 0.61 (0.7dB ripple @ 100Hz)