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18 Sound 8NMB750

8" · 8 Ω · 350 W · 96.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size8"
Impedance8 Ω
Fs88 Hz
Qts0.27
Qes0.28
Qms6.1
Vas6.9 L
Sd230 cm²
Xmax6.1 mm
Re5.2 Ω
Bl18.7 T·m
Mms35 g
Pe350 W
Sensitivity96.5 dB

Alignment hint

EBP314 · ported
Sealed Vb (Qtc ≈ 0.71)≈ 1.2 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
LaVoce WAN082.0185 -30.32 +0.059 +2.15.8 -0.396 -0.5usable200 W vs 350 W: lower power handling · Xmax 5.8 mm < 6.1 mm: lower excursion-limited SPL+
LaVoce WAN082.0280 -80.23 -0.048.97 +2.075.8 -0.396.5 =usable200 W vs 350 W: lower power handling · Xmax 5.8 mm < 6.1 mm: lower excursion-limited SPL+
18 Sound 8NMB75091 +30.37 +0.17.3 +0.46.3 +0.295 -1.5usable16 Ω vs 8 Ω: amp load changes+
B&C 8NW5176 -120.25 -0.0210.6 +3.76 -0.197 +0.5usable4 Ω vs 8 Ω: amp load changes · 200 W vs 350 W: lower power handling · Xmax 6 mm < 6.1 mm: lower excursion-limited SPL+
B&C 8NDL6480 -80.25 -0.029.6 +2.74.5 -1.697 +0.5usableXmax 4.5 mm < 6.1 mm: lower excursion-limited SPL+
Oberton 8NMB250v482.03 -5.970.258 -0.0110.89 +3.994.5 -1.696 -0.5usable250 W vs 350 W: lower power handling · Xmax 4.5 mm < 6.1 mm: lower excursion-limited SPL+
BMS 8N51587.7 -0.30.3 +0.0311.04 +4.144 -2.196 -0.5usable200 W vs 350 W: lower power handling · Xmax 4 mm < 6.1 mm: lower excursion-limited SPL+
BMS 8S21587.7 -0.30.31 +0.0411.04 +4.144.25 -1.8596 -0.5usable200 W vs 350 W: lower power handling · Xmax 4.25 mm < 6.1 mm: lower excursion-limited SPL+
18 Sound 8NTLW200074 -140.26 -0.0111.3 +4.44.4 -1.796.5 =usable16 Ω vs 8 Ω: amp load changes · Xmax 4.4 mm < 6.1 mm: lower excursion-limited SPL+
LaVoce WAF082.0176 -120.21 -0.0610.21 +3.315.8 -0.397 +0.5usable250 W vs 350 W: lower power handling · Xmax 5.8 mm < 6.1 mm: lower excursion-limited SPL+

Compare the closest 3 against the 8NMB750 →

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.