B&C 18 PZB 46 vp

18" · 8 Ω · 700 W · 99 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	28.8 Hz
Qts	0.227
Qes	0.24
Qms	4.13
Vas	346.4 L
Sd	1134.1 cm²
Xmax	8.1 mm
Re	5.46 Ω
Bl	25.6 T·m
Mms	158.8 g
Pe	700 W
Sensitivity	99 dB

Alignment hint

EBP	120 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 39.8 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
PD PD 184C01	30 +1.2	0.227 =	337.1 -9.3	7.8 -0.3	100.2 +1.2	close	Xmax 7.8 mm < 8.1 mm: lower excursion-limited SPL	+
Precision Devices PD 184C01	30 +1.2	0.227 =	337.1 -9.3	7.8 -0.3	100.2 +1.2	close	Xmax 7.8 mm < 8.1 mm: lower excursion-limited SPL	+
Fane COLOSSUS 18B600	29 +0.2	0.236 +0.01	345 -1.4	7.2 -0.9	98.7 -0.3	close	Xmax 7.2 mm < 8.1 mm: lower excursion-limited SPL	+
Radian 2218Neo	30 +1.2	0.23 =	312 -34.4	9 +0.9	99 =	close		+
PD PD 182	28 -0.8	0.238 +0.01	391 +44.6	8.2 +0.1	98.7 -0.3	close		+
Precision Devices PD 182	28 -0.8	0.238 +0.01	391 +44.6	8.2 +0.1	98.7 -0.3	close		+
AE Speakers TD18H+ 8 Ohms	29 +0.2	0.221 -0.01	390 +43.6	7 -1.1	99 =	close	Xmax 7 mm < 8.1 mm: lower excursion-limited SPL	+
RCF LF 18X400	28 -0.8	0.255 +0.03	360 +13.6	9 +0.9	98.6 -0.4	close		+
Radian 2218 NEO SUBWOOFER	28.9 +0.1	0.219 -0.01	333 -13.4	6.3 -1.8	98.9 -0.1	close	Xmax 6.3 mm < 8.1 mm: lower excursion-limited SPL	+
AE Speakers TD18H+	29 +0.2	0.221 -0.01	390 +43.6	7 -1.1	99.7 +0.7	close	Xmax 7 mm < 8.1 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 18 PZB 46 vp →

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.