Eighteen Sound 15NCX1000

15" · 8 Ω · 600 W · 95 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	53 Hz
Qts	0.31
Qes	0.32
Qms	10.4
Vas	75 L
Sd	881 cm²
Xmax	7.5 mm
Re	6.3 Ω
Bl	27.5 T·m
Mms	110 g
Pe	600 W
Sensitivity	95 dB

Alignment hint

EBP	166 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 17.8 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
Beyma 15"P1000Fe V2	45 -8	0.3 -0.01	80.7 +5.7	8 +0.5	98 +3	close		+
Beyma 15P1200Nd	45 -8	0.316 +0.01	84 +9	6.8 -0.7	97.4 +2.4	usable	Xmax 6.8 mm < 7.5 mm: lower excursion-limited SPL	+
BMS 15CN890	50 -3	0.345 +0.03	77 +2	6 -1.5	97.5 +2.5	usable	Xmax 6 mm < 7.5 mm: lower excursion-limited SPL	+
Beyma 15P1200Nd/N	42 -11	0.313 =	84.7 +9.7	7.1 -0.4	96.8 +1.8	usable	Xmax 7.1 mm < 7.5 mm: lower excursion-limited SPL	+
18 Sound 15TLW3000	44 -9	0.39 +0.08	80 +5	9 +1.5	95 =	usable	4 Ω vs 8 Ω: amp load changes	+
B&C 15NA100	47 -6	0.28 -0.03	88 +13	10 +2.5	98 +3	usable		+
Faital PRO 15HP1030	40 -13	0.3 -0.01	88.3 +13.3	12.45 +4.95	96 +1	usable	4 Ω vs 8 Ω: amp load changes	+
Faital PRO 15HP1060	40 -13	0.34 +0.03	76.3 +1.3	12.45 +4.95	97 +2	usable	4 Ω vs 8 Ω: amp load changes	+
Faital PRO 15XL1400	38 -15	0.3 -0.01	84.3 +9.3	12.92 +5.42	96 +1	usable	4 Ω vs 8 Ω: amp load changes	+
B&C 15 TBW 100	39 -14	0.307 =	96 +21	8.4 +0.9	96.4 +1.4	usable		+

Compare the closest 3 against the 15NCX1000 →

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.