18 Sound 18NLW9601C

18" · 8 Ω · 1800 W · 95 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	38 Hz
Qts	0.34
Qes	0.36
Qms	6.29
Vas	99 L
Sd	1130 cm²
Xmax	14 mm
Re	4.7 Ω
Bl	31.7 T·m
Mms	275 g
Pe	1800 W
Sensitivity	95 dB

Alignment hint

EBP	106 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 29.8 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
18 Sound 18NLW9601	38 =	0.28 -0.06	111 +12	14 =	96 +1	close	4 Ω vs 8 Ω: amp load changes	+
18 Sound 18NLW4500	37 -1	0.31 -0.03	127 +28	14.75 +0.75	96.5 +1.5	close	4 Ω vs 8 Ω: amp load changes	+
18 Sound 18NLW9601	39 +1	0.28 -0.06	120 +21	14 =	96 +1	usable		+
18 Sound 18NLW4500	35 -3	0.33 -0.01	151 +52	15.3 +1.3	97 +2	usable		+
18 Sound 18NTLS5000	37 -1	0.33 -0.01	75 -24	17.75 +3.75	89 -6	usable	4 Ω vs 8 Ω: amp load changes	+
Ciare PW 465 ND	37 -1	0.39 +0.05	141.16 +42.16	11.5 -2.5	94.4 -0.6	usable	1000 W vs 1800 W: lower power handling · Xmax 11.5 mm < 14 mm: lower excursion-limited SPL	+
B&C 18SW100	36 -2	0.36 +0.02	160 +61	12.5 -1.5	96 +1	usable	4 Ω vs 8 Ω: amp load changes · Xmax 12.5 mm < 14 mm: lower excursion-limited SPL	+
B&C 18SW115	34 -4	0.3 -0.04	149.1 +50.1	14 =	96 +1	usable	4 Ω vs 8 Ω: amp load changes	+
Eminence NSW4018-8	36 -2	0.38 +0.04	164.49 +65.49	15.21 +1.21	96.6 +1.6	usable		+
18 Sound 18LW2500	34 -4	0.335 -0.01	135 +36	9.1 -4.9	96 +1	usable	Xmax 9.1 mm < 14 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 18NLW9601C →

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.