Radian 2218 NEO SUBWOOFER

18" · 8 Ω · 800 W · 98.9 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	28.9 Hz
Qts	0.219
Qes	0.238
Qms	2.76
Vas	333 L
Sd	1458.1 cm²
Xmax	6.3 mm
Re	5.5 Ω
Bl	33.7 T·m
Mms	271.4 g
Pe	800 W
Sensitivity	98.9 dB

Alignment hint

EBP	121 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 35.3 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
B&C 18 PZB 46 vp	28.8 -0.1	0.227 +0.01	346.4 +13.4	8.1 +1.8	99 +0.1	close		+
Fane COLOSSUS 18B600	29 +0.1	0.236 +0.02	345 +12	7.2 +0.9	98.7 -0.2	close	600 W vs 800 W: lower power handling	+
AE Speakers TD18H+ 8 Ohms	29 +0.1	0.221 =	390 +57	7 +0.7	99 +0.1	close		+
PD PD 184C01	30 +1.1	0.227 +0.01	337.1 +4.1	7.8 +1.5	100.2 +1.3	close		+
Precision Devices PD 184C01	30 +1.1	0.227 +0.01	337.1 +4.1	7.8 +1.5	100.2 +1.3	close		+
AE Speakers TD18H+	29 +0.1	0.221 =	390 +57	7 +0.7	99.7 +0.8	close		+
Radian 2218Neo	30 +1.1	0.23 +0.01	312 -21	9 +2.7	99 +0.1	close		+
Eminence PS18-6008 vp	28.1 -0.8	0.239 +0.02	354.1 +21.1	5.5 -0.8	98.9 =	close	300 W vs 800 W: lower power handling · Xmax 5.5 mm < 6.3 mm: lower excursion-limited SPL	+
Oberton 18NSW700-8	30.5 +1.6	0.243 +0.02	309 -24	7.7 +1.4	98.6 -0.3	close		+
B&C 18 PZB 100	30 +1.1	0.243 +0.02	297 -36	7.8 +1.5	98.8 -0.1	close		+

Compare the closest 3 against the 2218 NEO SUBWOOFER →

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.