BMS 15N840V2-8

15" · 8 Ω · 1200 W · 97.2 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	35.6 Hz
Qts	0.268
Qes	0.28
Qms	6.26
Vas	130 L
Sd	845 cm²
Xmax	8.7 mm
Re	5 Ω
Bl	24.8 T·m
Mms	153.9 g
Pe	1200 W
Sensitivity	97.2 dB

Alignment hint

EBP	127 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 21.8 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
PHL Audio 6201MNd	36 +0.4	0.266 =	138.4 +8.4	7.9 -0.8	97.3 +0.1	close	Xmax 7.9 mm < 8.7 mm: lower excursion-limited SPL	+
Faital PRO 15FX600	38 +2.4	0.27 =	128.3 -1.7	11.25 +2.55	98 +0.8	close	700 W vs 1200 W: lower power handling	+
B&C 15NBX100	36 +0.4	0.29 +0.02	125 -5	10 +1.3	97 -0.2	close		+
RCF LF15G401	36 +0.4	0.26 -0.01	150 +20	9 +0.3	97 -0.2	close	800 W vs 1200 W: lower power handling	+
RCF LF15Y408	36 +0.4	0.26 -0.01	150 +20	9 +0.3	97 -0.2	close	800 W vs 1200 W: lower power handling	+
BMS 15S435	38 +2.4	0.28 +0.01	129 -1	8 -0.7	97 -0.2	close	Xmax 8 mm < 8.7 mm: lower excursion-limited SPL	+
PHL Audio 6090	35 -0.6	0.265 =	145 +15	7.9 -0.8	97 -0.2	close	Xmax 7.9 mm < 8.7 mm: lower excursion-limited SPL	+
18 Sound 15NLW9401	39 +3.4	0.26 -0.01	134 +4	10 +1.3	97.5 +0.3	close		+
18 Sound 15LW1401	39 +3.4	0.26 -0.01	127 -3	9 +0.3	98 +0.8	close	4 Ω vs 8 Ω: amp load changes	+
Faital PRO 15HP1020	40 +4.4	0.27 =	126.6 -3.4	9 +0.3	98 +0.8	close	700 W vs 1200 W: lower power handling	+

Compare the closest 3 against the 15N840V2-8 →

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.