B&C 18PZB100

18" · 4 Ω · 700 W · 96.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	4 Ω
Fs	38 Hz
Qts	0.28
Qes	0.29
Qms	6.1
Vas	164 L
Sd	1134 cm²
Xmax	8 mm
Re	4 Ω
Bl	25 T·m
Mms	190 g
Pe	700 W
Sensitivity	96.5 dB

Alignment hint

EBP	131 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 30.5 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

Driver	Fs (Hz)	Qts	Vas (L)	Xmax (mm)	Sens (dB)	Fit	Notes	Compare
Oberton 18XB1300	35.2 -2.8	0.287 +0.01	170.9 +6.9	8 =	97.8 +1.3	close	8 Ω vs 4 Ω: amp load changes	+
Oberton 18NXB1601	34.6 -3.4	0.286 +0.01	146.2 -17.8	8.2 +0.2	96.9 +0.4	close	8 Ω vs 4 Ω: amp load changes	+
18 Sound 18NLW9600	34 -4	0.281 =	149 -15	9 +1	97.3 +0.8	close	8 Ω vs 4 Ω: amp load changes	+
PD PD 1851/2	37 -1	0.286 +0.01	160.5 -3.5	6.7 -1.3	98.3 +1.8	close	8 Ω vs 4 Ω: amp load changes · Xmax 6.7 mm < 8 mm: lower excursion-limited SPL	+
Precision Devices PD 1851/2	37 -1	0.286 +0.01	160.5 -3.5	6.7 -1.3	98.3 +1.8	close	8 Ω vs 4 Ω: amp load changes · Xmax 6.7 mm < 8 mm: lower excursion-limited SPL	+
Oberton 18XB1301	35.7 -2.3	0.302 +0.02	172.9 +8.9	8.2 +0.2	97.9 +1.4	close	8 Ω vs 4 Ω: amp load changes	+
Oberton 18XB1301DS	35.7 -2.3	0.302 +0.02	172.9 +8.9	12 +4	97.5 +1	close	8 Ω vs 4 Ω: amp load changes	+
Oberton 18XB1201	38.05 +0.05	0.317 +0.04	159.37 -4.63	10.5 +2.5	98.5 +2	close	8 Ω vs 4 Ω: amp load changes	+
LaVoce SAF184.50	35 -3	0.329 +0.05	162 -2	9.2 +1.2	96.5 =	close	8 Ω vs 4 Ω: amp load changes	+
Oberton 18NXB700	36.24 -1.76	0.312 +0.03	155.46 -8.54	9 +1	98 +1.5	close	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the 18PZB100 →

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.