Newtronics B 15

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recommended cabinet 1:
closed cabinet with 38 L volume
from 60/38 Hz (-3dB/-8dB)
 
recommended cabinet 2:
155 L volume bass reflex cabinet
with 2x HP100 reflex tube, 19 cm long.
from 28/24 Hz (-3dB/-8dB).

Newtronics B 15       order no. N-sub15       - not available (_)
37 cm bass driver with paper cone. To avoid compression effects the driver possesses a pole piece hole. The basket is made of die-cast.
  • power handling (continuous/programme) = 250/500 W
  • frequency range = 50-200 Hz
  • resonance frequency fs = 36,5 Hz
  • impedance R = 4 Ohm
  • sound pressure level SPL = 90 dB (2,83V; 1m)
  • DC resistance Re = 3,22 Ohm
  • force factor BL = 18,6 N/A
  • voice coil inductance L = 2,81 mH
  • effective piston radiating area Sd = 835 cm2
  • effective mechanical mass incl. air load mms = 235 g
  • equivalent volume of compliance Vas = 78 l
  • total Q factor Qts = 0,47 (Qms=7,09, Qes=0,5)
  • voice coil diameter = 38 mm
  • mounting diameter d = 348 mm
  • overall diameter d = 391 mm
  • mounting depth (not countersunk) t = 198 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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