P.Audio R15/76MB

15" · 8 Ω · 500 W · 100 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	62.5 Hz
Qts	0.421
Qes	0.44
Qms	9.92
Vas	83.4 L
Sd	880 cm²
Xmax	4.2 mm
Re	5.8 Ω
Bl	20.9 T·m
Mms	84.4 g
Pe	500 W
Sensitivity	100 dB

Alignment hint

EBP	142 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 45.8 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
P.Audio E15-LF	50 -12.5	0.42 =	92.17 +8.77	6 +1.8	95.9 -4.1	usable		+
RCF L 15P540	50 -12.5	0.393 -0.03	100 +16.6	5.2 +1	98.4 -1.6	usable		+
PRV Audio 15W1600	50.5 -12	0.358 -0.06	87.9 +4.5	5.6 +1.4	98.5 -1.5	usable		+
PD PD 156 v2014	50.3 -12.2	0.469 +0.05	93.4 +10	5.7 +1.5	97.2 -2.8	usable		+
Precision Devices PD 156 v2014	50.3 -12.2	0.469 +0.05	93.4 +10	5.7 +1.5	97.2 -2.8	usable		+
Eminence LEGEND CA154	51.1 -11.4	0.487 +0.07	108.2 +24.8	4.5 +0.3	100.6 +0.6	usable	4 Ω vs 8 Ω: amp load changes · 300 W vs 500 W: lower power handling	+
B&C 15FW88	49 -13.5	0.43 +0.01	103.7 +20.3	8 +3.8	98 -2	usable		+
RCF L 17/64AF vp FREDO51	60 -2.5	0.388 -0.03	109 +25.6	2.8 -1.4	101.2 +1.2	usable	150 W vs 500 W: lower power handling · Xmax 2.8 mm < 4.2 mm: lower excursion-limited SPL	+
P.Audio SD-15	44.9 -17.6	0.393 -0.03	89.4 +6	5 +0.8	96.6 -3.4	usable		+
P.Audio 15BM-300B	50.6 -11.9	0.404 -0.02	113 +29.6	3.5 -0.7	99.1 -0.9	usable	300 W vs 500 W: lower power handling · Xmax 3.5 mm < 4.2 mm: lower excursion-limited SPL	+

Compare the closest 3 against the R15/76MB →

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.