Monacor SPH-450TC, 2x4 Ohm

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recommended cabinet 1:
closed cabinet with 44 L volume
from 63/40 Hz (-3dB/-8dB)
 
recommended cabinet 2:
108 L volume bass reflex cabinet
with 2x HP100 reflex tube, 30 cm long.
from 38/28 Hz (-3dB/-8dB).

Monacor SPH-450TC, 2x4 Ohm       order no. mo-103270       EUR 461,00 excl. VAT: € 387.39 / $ 445.50
44 cm bass driver with paper cone. The basket is made of die-cast.
  • power handling (continuous/programme) = 2x350/500 W
  • frequency range = 30-1500 Hz
  • resonance frequency fs = 20 Hz
  • impedance R = 8 Ohm
  • sound pressure level SPL = 93 dB (2,83V; 1m)
  • DC resistance Re = 7,4 Ohm
  • force factor BL = 32,4 N/A
  • voice coil inductance L = 4,6 mH
  • effective piston radiating area Sd = 1250 cm2
  • effective mechanical mass incl. air load mms = 305 g
  • equivalent volume of compliance Vas = 480 l
  • total Q factor Qts = 0,25 (Qms=2,97, Qes=0,27)
  • voice coil diameter = 99,3 mm
  • maximum peak linear excursion vibration xlin = +/- 12,9 mm
  • mounting diameter d = 425 mm
  • overall diameter d = 460 mm
  • mounting depth (not countersunk) t = 220 mm
  • mass m = 17 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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