Monacor SPH-225C

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recommended cabinet 1:
closed cabinet with 3,1 L volume
from 107/68 Hz (-3dB/-8dB)
 
recommended cabinet 2:
8,7 L volume bass reflex cabinet
with HP70 reflex tube, 36 cm long.
from 60/46 Hz (-3dB/-8dB).

Monacor SPH-225C       order no. mo-104130       EUR 134,00 excl. VAT: € 112.61 / $ 130.62
20 cm bass driver with carbon cone. The voice coil is made of kapton.
  • power handling (continuous/programme) = 100/150 W
  • frequency range = 45-3000 Hz
  • resonance frequency fs = 39 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 90 dB (2,83V; 1m)
  • DC resistance Re = 5,9 Ohm
  • force factor BL = 13,17 N/A
  • voice coil inductance L = 0,8 mH
  • effective piston radiating area Sd = 201 cm2
  • effective mechanical mass incl. air load mms = 36,6 g
  • equivalent volume of compliance Vas = 24 l
  • total Q factor Qts = 0,29 (Qms=4,94, Qes=0,31)
  • voice coil diameter = 50 mm
  • maximum peak linear excursion vibration xlin = +/- 6 mm
  • mounting diameter d = 181 mm
  • overall diameter d = 222 mm
  • mounting depth (not countersunk) t = 102 mm
  • mass m = 3,5 kg
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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