18 Sound 15NMB1000

15" · 8 Ω · 900 W · 101 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	46 Hz
Qts	0.24
Qes	0.24
Qms	8.3
Vas	124 L
Sd	855 cm²
Xmax	6.5 mm
Re	5.3 Ω
Bl	25.2 T·m
Mms	100 g
Pe	900 W
Sensitivity	101 dB

Alignment hint

EBP	192 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 16.1 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
RCF MB 15N405	46 =	0.265 +0.03	124 =	6.6 +0.1	100 -1	close		+
Oberton 15NB500	42.77 -3.23	0.255 +0.02	121.46 -2.54	7.25 +0.75	99 -2	close	500 W vs 900 W: lower power handling	+
18 Sound 15LW1400	42 -4	0.245 +0.01	137 +13	6.7 +0.2	99.3 -1.7	close		+
B&C 15NW76	42 -4	0.22 -0.02	130 +6	8 +1.5	100.5 -0.5	close	600 W vs 900 W: lower power handling	+
PHL Audio 6031	41 -5	0.236 =	117 -7	6.3 -0.2	98.6 -2.4	close	Xmax 6.3 mm < 6.5 mm: lower excursion-limited SPL	+
Fane COLOSSUS 15-750BMN	45 -1	0.27 +0.03	127 +3	5.8 -0.7	99.6 -1.4	close	Xmax 5.8 mm < 6.5 mm: lower excursion-limited SPL	+
Oberton 15NMB500	44.74 -1.26	0.292 +0.05	127.95 +3.95	7.75 +1.25	100.5 -0.5	close	500 W vs 900 W: lower power handling	+
18 Sound 15LW1401 4 Ohms	39 -7	0.26 +0.02	127 +3	7.4 +0.9	100 -1	close	4 Ω vs 8 Ω: amp load changes	+
Beyma 15P80/FE	41 -5	0.236 =	159.3 +35.3	6.6 +0.1	100.6 -0.4	close		+
B&C 14 CXN 6	45 -1	0.28 +0.04	131 +7	5.6 -0.9	100 -1	close	400 W vs 900 W: lower power handling · Xmax 5.6 mm < 6.5 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 15NMB1000 →

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.