Beyma 15BR400

15" · 8 Ω · 400 W · 98.3 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	30 Hz
Qts	0.236
Qes	0.24
Qms	13.5
Vas	274 L
Sd	880 cm²
Xmax	6 mm
Re	5.7 Ω
Bl	22.3 T·m
Mms	111.5 g
Pe	400 W
Sensitivity	98.3 dB

Alignment hint

EBP	125 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 34.3 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 15GT200 v1	30.4 +0.4	0.223 -0.01	270 -4	5.5 -0.5	98.4 +0.1	close	250 W vs 400 W: lower power handling · Xmax 5.5 mm < 6 mm: lower excursion-limited SPL	+
RCF L 15/541	30.9 +0.9	0.236 =	300 +26	5.6 -0.4	98.1 -0.2	close	200 W vs 400 W: lower power handling · Xmax 5.6 mm < 6 mm: lower excursion-limited SPL	+
Beyma SM115/K vp2	29.8 -0.2	0.228 -0.01	291 +17	8 +2	99 +0.7	close		+
RCF L 15P200	30 =	0.23 -0.01	245 -29	5.9 -0.1	97.3 -1	close	300 W vs 400 W: lower power handling · Xmax 5.9 mm < 6 mm: lower excursion-limited SPL	+
Beyma SM115/K	29 -1	0.249 +0.01	273 -1	8 +2	97.2 -1.1	close		+
Beyma 15GT200 v2	31 +1	0.218 -0.02	270 -4	5.4 -0.6	98.8 +0.5	close	250 W vs 400 W: lower power handling · Xmax 5.4 mm < 6 mm: lower excursion-limited SPL	+
Beyma SM115/K vp1	27.6 -2.4	0.222 -0.01	296.7 +22.7	8 +2	98.3 =	close		+
JBL 1501FE	29.5 -0.5	0.236 =	217.7 -56.3	6.9 +0.9	97.2 -1.1	close		+
Beyma 15GT200 v1990	34 +4	0.236 =	276 +2	5 -1	99.4 +1.1	close	250 W vs 400 W: lower power handling · Xmax 5 mm < 6 mm: lower excursion-limited SPL	+
PD PD 1550	31 +1	0.212 -0.02	242 -32	7.4 +1.4	98.1 -0.2	close		+

Compare the closest 3 against the 15BR400 →

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.