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B&C 18RS115

18" · 8 Ω · 2000 W · 97.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size18"
Impedance8 Ω
Fs33 Hz
Qts0.22
Qes0.23
Qms9
Vas125 L
Sd1210 cm²
Xmax23.5 mm
Re4.5 Ω
Bl40 T·m
Mms391 g
Pe2000 W
Sensitivity97.4 dB

Alignment hint

EBP143 · ported
Sealed Vb (Qtc ≈ 0.71)≈ 13.4 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
B&C 18DS10032 -10.24 +0.02157 +3214 -9.598 +0.6usable4 Ω vs 8 Ω: amp load changes · 1500 W vs 2000 W: lower power handling · Xmax 14 mm < 23.5 mm: lower excursion-limited SPL+
B&C 18DS11530 -30.2 -0.02168 +4316.5 -798 +0.6usableXmax 16.5 mm < 23.5 mm: lower excursion-limited SPL+
18 Sound 18iD20029 -40.17 -0.05136 +1118 -5.595 -2.4usable2 Ω vs 8 Ω: amp load changes · Xmax 18 mm < 23.5 mm: lower excursion-limited SPL+
18 Sound 18iDSDS29 -40.17 -0.05136 +1118 -5.595 -2.4usable2 Ω vs 8 Ω: amp load changes · Xmax 18 mm < 23.5 mm: lower excursion-limited SPL+
B&C 18DS10034 +10.29 +0.07155 +3014.5 -997.5 +0.1usable1500 W vs 2000 W: lower power handling · Xmax 14.5 mm < 23.5 mm: lower excursion-limited SPL+
18 Sound 18NLW450037 +40.31 +0.09127 +214.75 -8.7596.5 -0.9usable4 Ω vs 8 Ω: amp load changes · Xmax 14.75 mm < 23.5 mm: lower excursion-limited SPL+
18 Sound 18NLW960139 +60.28 +0.06120 -514 -9.596 -1.4usableXmax 14 mm < 23.5 mm: lower excursion-limited SPL+
Beyma 18QLEX1600Fe30 -30.23 +0.01195 +7013 -10.597 -0.4usableXmax 13 mm < 23.5 mm: lower excursion-limited SPL+
Precision Devices PD.185N0235.2 +2.20.24 +0.02178.28 +53.2812 -11.596.8 -0.6usable1100 W vs 2000 W: lower power handling · Xmax 12 mm < 23.5 mm: lower excursion-limited SPL+
18 Sound 18NLW960138 +50.28 +0.06111 -1414 -9.596 -1.4usable4 Ω vs 8 Ω: amp load changes · Xmax 14 mm < 23.5 mm: lower excursion-limited SPL+

Compare the closest 3 against the 18RS115 →

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.