18 Sound 18LW2600

18" · 4 Ω · 1500 W · 96.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	4 Ω
Fs	30 Hz
Qts	0.28
Qes	0.29
Qms	12.9
Vas	186 L
Sd	1225 cm²
Xmax	14 mm
Re	2.6 Ω
Bl	23.4 T·m
Mms	336 g
Pe	1500 W
Sensitivity	96.5 dB

Alignment hint

EBP	103 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 34.6 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 18LW2600	31 +1	0.29 +0.01	187 +1	14.8 +0.8	96.8 +0.3	close	8 Ω vs 4 Ω: amp load changes	+
RCF LF18X451	30 =	0.28 =	220 +34	14 =	97 +0.5	close	8 Ω vs 4 Ω: amp load changes	+
B&C 18SW115	32 +2	0.3 +0.02	187 +1	14 =	97 +0.5	close	8 Ω vs 4 Ω: amp load changes	+
18 Sound 18NLW4100	29 -1	0.27 -0.01	207 +21	15 +1	97 +0.5	close		+
RCF LF18N408	30 =	0.33 +0.05	193 +7	15 +1	97 +0.5	close	8 Ω vs 4 Ω: amp load changes	+
Faital PRO 18XL1700	28 -2	0.28 =	227 +41	16.17 +2.17	97 +0.5	close	8 Ω vs 4 Ω: amp load changes	+
Oberton 18NXB1600	32.37 +2.37	0.303 +0.02	173.11 -12.89	13.5 -0.5	97 +0.5	close	8 Ω vs 4 Ω: amp load changes · Xmax 13.5 mm < 14 mm: lower excursion-limited SPL	+
Beyma 18QLEX1600Fe	31 +1	0.25 -0.03	177.2 -8.8	13 -1	96 -0.5	close	Xmax 13 mm < 14 mm: lower excursion-limited SPL	+
18 Sound 18NLW4100	31 +1	0.34 +0.06	180 -6	15 +1	96.5 =	close	8 Ω vs 4 Ω: amp load changes	+
RCF LF 18X451	30 =	0.278 =	220 +34	10.7 -3.3	96.8 +0.3	close	8 Ω vs 4 Ω: amp load changes · Xmax 10.7 mm < 14 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 18LW2600 →

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.