Davis 38 RPA

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recommended cabinet 1:
closed cabinet with 47 L volume
from 78/49 Hz (-3dB/-8dB)
 
recommended cabinet 2:
159 L volume bass reflex cabinet
with 2x HP100 reflex tube, 8 cm long.
from 41/32 Hz (-3dB/-8dB).

Davis 38 RPA       order no. dav-38RPA       EUR 399,00 excl. VAT: € 335.29 / $ 395.65
35 cm bass-midrange driver with cellulose cone. The basket is made of die-cast.
  • resonance frequency fs = 34 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 97 dB (2,83V; 1m)
  • DC resistance Re = 7,8 Ohm
  • force factor BL = 19,26 N/A
  • voice coil inductance L = 1,1 mH
  • effective mechanical mass incl. air load mms = 84 g
  • equivalent volume of compliance Vas = 238 l
  • total Q factor Qts = 0,35 (Qms=3,92, Qes=0,38)
  • voice coil diameter = 68 mm
  • overall diameter d = 395 mm
  • mounting depth (not countersunk) t = 157 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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