Davis 31 ST 12 M

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recommended cabinet 1:
closed cabinet with 71 L volume
from 48/30 Hz (-3dB/-8dB)
 
recommended cabinet 2:
267 L volume bass reflex cabinet
with 2x HP100 reflex tube, 17 cm long.
from 24/19 Hz (-3dB/-8dB).

Davis 31 ST 12 M       order no. dav-31ST12M       EUR 123,50 excl. VAT: € 103.78 / $ 121.42
27 cm bass-midrange driver with high quality cone.
  • resonance frequency fs = 24 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 91 dB (2,83V; 1m)
  • DC resistance Re = 6,3 Ohm
  • force factor BL = 9,65 N/A
  • voice coil inductance L = 1,01 mH
  • effective mechanical mass incl. air load mms = 47,9 g
  • equivalent volume of compliance Vas = 260 l
  • total Q factor Qts = 0,4 (Qms=1,98, Qes=0,5)
  • maximum peak linear excursion vibration xlin = +/- 9 mm
  • overall diameter d = 304 mm
  • mounting depth (not countersunk) t = 113 mm
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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