ACCUTON S280-6-282
Accuton S280-6-282. Sandwich Bass.
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27 cm bass speaker with Sandwich membrane. The loudspeaker incorporates a neodymium magnet system. The coil is vented. During linear operation, the suspended voice coil remains fully within the magnetic field.
RMS power = 150 W
Frequency range = 31-1000 Hz
Resonance frequency = 20 Hz
Impedance = 6 Ohm
Sound pressure level SPL = 91 dB (2,83V; 1m)
DC resistance Re = 6.6 Ohm
Force factor BL = 14.1 N / A
Coil inductance L = 0.64 mH
Effective membrane area Sd = 408 cm2
Displaced mass. Air load mms = 65 g
Equivalent volume of compliance Vas = 226 l
Total quality factor Qts = 0.26 (Qms = 4.43, Qes = 0.28)
Coil diameter = 55 mm
Linear excursion xlin = +/- 6 mm
Mounting diameter d = 251.2 mm
Diameter / Overall dimensions d = 280 mm
Mounting depth (not countersunk) t = 131.95 mm
Weight = 3.80 kg
Vented box design parameters:
- Vb: 62L, Port diameter: 70mm, Length: 240mm, Fres: 25Hz, F-3dB: 38Hz, Q: 0.58 (optimal)
- Vb: 91L, Port diameter: 70mm, Length: 90mm, Fres: 29.5Hz, F-3dB: 31Hz, Q: 0.50 (extended bass)
- Vb: 54L, Port diameter: 70mm, Length: 170mm, Fres: 31Hz, F-3dB: 39Hz, Q: 0.61 (0.7dB Ripple @ 50Hz)
Closed Box design parameters:
- Vb: 39L, -5dB @ 40Hz, -17dB @ 20Hz, F-3dB: 50Hz, Q: 0.71 (typical)
- Vb: 101L, -5dB @ 40Hz, -13dB @ 20Hz, F-3dB: 51Hz, Q: 0.50 (extended bass)
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