Monacor SPH-390TC, 2x8 Ohm

With the help of the chassis overview page you find more than 5000 loudspeaker chassis.

recommended cabinet 1:
closed cabinet with 36 L volume
from 63/40 Hz (-3dB/-8dB)

recommended cabinet 2:
103 L volume bass reflex cabinet
with 2x HP100 reflex tube, 32 cm long.
from 35/27 Hz (-3dB/-8dB).

Monacor SPH-390TC, 2x8 Ohm order no. mo-101520 EUR 162,00

excl. VAT: € 136.13 / $ 156.55
37 cm bass driver with polypropylene cone. The driver is made with a double voice coil and the given impedance values are for connection in series.

power handling (continuous/programme) = 2x150/300 W
frequency range = 33-1500 Hz
resonance frequency fs = 23 Hz
impedance R = 16 Ohm
sound pressure level SPL = 96 dB (2,83V; 1m)
DC resistance Re = 2x 6,0 Ohm
force factor BL = 16,72 N/A
voice coil inductance L = 2x 1,3 mH
effective piston radiating area Sd = 850 cm²
effective mechanical mass incl. air load mms = 160 g
equivalent volume of compliance Vas = 284 l
total Q factor Qts = 0,28 (Qms=6,36, Qes=0,29)
voice coil diameter = 65,5 mm
maximum peak linear excursion vibration x_lin = +/- 7 mm
mounting diameter d = 348 mm
overall diameter d = 385 mm
mounting depth (not countersunk) t = 170 mm
mass m = 7,5 kg

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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.