SB Acoustics 15” SB42FHC75-6

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recommended cabinet 1:
closed cabinet with 77 L volume
from 48/30 Hz (-3dB/-8dB)
 
recommended cabinet 2:
277 L volume bass reflex cabinet
with 2x HP100 reflex tube, 17 cm long.
from 24/19 Hz (-3dB/-8dB).

SB Acoustics 15” SB42FHC75-6       order no. sb-42FHC75-6       EUR 495,60 excl. VAT: € 416.47 / $ 483.11
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  • power handling (continuous/programme) = 300 W
  • resonance frequency fs = 22,5 Hz
  • impedance R = 6 Ohm
  • sound pressure level SPL = 93 dB (2,83V; 1m)
  • DC resistance Re = 4,6 Ohm
  • force factor BL = 16,2 N/A
  • voice coil inductance L = 2,1 mH
  • effective piston radiating area Sd = 850 cm2
  • effective mechanical mass incl. air load mms = 160 g
  • equivalent volume of compliance Vas = 318 l
  • total Q factor Qts = 0,37 (Qms=5,4, Qes=0,4)
  • voice coil diameter = 75,6 mm
  • mounting diameter d = 371 mm
  • overall diameter d = 417 mm
  • mounting depth (not countersunk) t = 170,3 mm
PDF data sheet
The cabinet volume calculations are executed considering an external resistance of 0.3 Ohm. We are using, if no other data is known or available, the information supplied by the manufacturer.

Please note: the frequency response doesn't say much about the cut-off frequency inside the cabinet! Therefore, we mostly give you 2 examples with dimensioning considerations and an indication, how low the loudspeaker will reproduce.

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