Beyma 15G450

15" · 8 Ω · 750 W · 98.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	45 Hz
Qts	0.32
Qes	0.33
Qms	10.5
Vas	115 L
Sd	880 cm²
Xmax	6.2 mm
Re	5.7 Ω
Bl	24 T·m
Mms	118.1 g
Pe	750 W
Sensitivity	98.5 dB

Alignment hint

EBP	136 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 29.6 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
Beyma 15G450/N	45 =	0.32 =	115 =	6.2 =	98.5 =	close		+
RCF MB 15X351	46 +1	0.315 -0.01	114 -1	5.9 -0.3	99 +0.5	close	Xmax 5.9 mm < 6.2 mm: lower excursion-limited SPL	+
PD PD 155N01	45 =	0.313 -0.01	113.4 -1.6	5.7 -0.5	98 -0.5	close	Xmax 5.7 mm < 6.2 mm: lower excursion-limited SPL	+
Precision Devices PD 155N01	45 =	0.313 -0.01	113.4 -1.6	5.7 -0.5	98 -0.5	close	Xmax 5.7 mm < 6.2 mm: lower excursion-limited SPL	+
RCF L 15S801	48 +3	0.32 =	113 -2	6 -0.2	98.9 +0.4	close	Xmax 6 mm < 6.2 mm: lower excursion-limited SPL	+
RCF L 15S801-8	48 +3	0.32 =	113 -2	6 -0.2	98.9 +0.4	close	Xmax 6 mm < 6.2 mm: lower excursion-limited SPL	+
RCF MB 15N351 v2012	46 +1	0.315 -0.01	114 -1	5.7 -0.5	99 +0.5	close	Xmax 5.7 mm < 6.2 mm: lower excursion-limited SPL	+
Sica 15 PF 3	45 =	0.31 -0.01	117.6 +2.6	8 +1.8	99.1 +0.6	close		+
RCF L 15S800	48 +3	0.32 =	113 -2	5.5 -0.7	98.9 +0.4	close	Xmax 5.5 mm < 6.2 mm: lower excursion-limited SPL	+
RCF LF 15X401 v2013	41.8 -3.2	0.313 -0.01	116.4 +1.4	8.7 +2.5	98.1 -0.4	close		+

Compare the closest 3 against the 15G450 →

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.