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18 Sound 8MB500

8" · 4 Ω · 280 W · 95 dB · datasheet ↗

Thiele-Small parameters

Nominal size8"
Impedance4 Ω
Fs73 Hz
Qts0.36
Qes0.42
Qms2.56
Vas18.4 L
Sd230 cm²
Xmax6 mm
Re2.6 Ω
Bl7.2 T·m
Mms18 g
Pe280 W
Sensitivity95 dB

Alignment hint

EBP174 · ported
Sealed Vb (Qtc ≈ 0.71)≈ 6.4 L

EBP > 100: favours a ported (bass-reflex) alignment.

Rules of thumb from T/S parameters only. Verify against a real simulation before cutting wood.

Substitute candidates

DriverFs (Hz)QtsVas (L)Xmax (mm)Sens (dB)FitNotesCompare
Beyma 8"G4070 -30.36 =17 -1.46.5 +0.595 =close8 Ω vs 4 Ω: amp load changes+
18 Sound 8MB50074 +10.43 +0.0721.5 +3.16 =95 =close8 Ω vs 4 Ω: amp load changes+
B&C 8FMB5168 -50.39 +0.0320.5 +2.15.5 -0.596 +1close16 Ω vs 4 Ω: amp load changes · Xmax 5.5 mm < 6 mm: lower excursion-limited SPL+
B&C 8MBX5168 -50.38 +0.0222 +3.66 =97 +2close16 Ω vs 4 Ω: amp load changes · 200 W vs 280 W: lower power handling+
Faital PRO 8PR20058 -150.37 +0.0116.9 -1.58.15 +2.1595 =close8 Ω vs 4 Ω: amp load changes · 200 W vs 280 W: lower power handling+
Faital PRO 8PR21065 -80.34 -0.0215.7 -2.77.17 +1.1794 -1close16 Ω vs 4 Ω: amp load changes · 200 W vs 280 W: lower power handling+
B&C 8NDL5166 -70.37 +0.0114 -4.47 +194 -1usable8 Ω vs 4 Ω: amp load changes · 200 W vs 280 W: lower power handling+
18 Sound 8MB40064 -90.38 +0.0223.9 +5.55.8 -0.295 =usable8 Ω vs 4 Ω: amp load changes · Xmax 5.8 mm < 6 mm: lower excursion-limited SPL+
LaVoce WAF082.0078 +50.37 +0.0111.92 -6.486.3 +0.395 =usable8 Ω vs 4 Ω: amp load changes · 200 W vs 280 W: lower power handling+
Faital PRO 8FE30070 -30.44 +0.0815.7 -2.75.52 -0.4895 =usable8 Ω vs 4 Ω: amp load changes · Xmax 5.52 mm < 6 mm: lower excursion-limited SPL+

Compare the closest 3 against the 8MB500 →

Ranked on parameter similarity only (Qts, Fs, Vas, Xmax, sensitivity). Same nominal size required. A hint, not a simulation, model the swap before cutting or buying.

Used in enclosures (0)

No enclosure in the catalog uses this driver yet.