Radian 5215B v2017

15" · 8 Ω · 625 W · 100.3 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	40 Hz
Qts	0.266
Qes	0.29
Qms	3.28
Vas	202 L
Sd	880 cm²
Xmax	5.5 mm
Re	5.3 Ω
Bl	19.8 T·m
Mms	85.1 g
Pe	625 W
Sensitivity	100.3 dB

Alignment hint

EBP	138 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 33.3 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
Radian 5215B v2024	40 =	0.266 =	202 =	5.5 =	100.3 =	close		+
PD PD 153 C01	39 -1	0.265 =	195 -7	5.5 =	100.2 -0.1	close	400 W vs 625 W: lower power handling	+
Precision Devices PD 153 C01	39 -1	0.265 =	195 -7	5.5 =	100.2 -0.1	close	400 W vs 625 W: lower power handling	+
Eminence PS15-5008	38.8 -1.2	0.273 +0.01	198.7 -3.3	6.3 +0.8	99.8 -0.5	close		+
Radian 5215B oem2	42 +2	0.247 -0.02	197 -5	5.5 =	100.6 +0.3	close		+
Radian 5215B oem3	42 +2	0.247 -0.02	197 -5	5.5 =	100.6 +0.3	close		+
B&C 15 CXN 88	40 =	0.254 -0.01	178 -24	6 +0.5	100.4 +0.1	close		+
Precision Devices PD.153C01	39 -1	0.27 =	195 -7	5.7 +0.2	98.1 -2.2	close	400 W vs 625 W: lower power handling	+
B&C 15 PLB 76 (prodance)	38.7 -1.3	0.259 -0.01	215 +13	5 -0.5	100.6 +0.3	close	400 W vs 625 W: lower power handling · Xmax 5 mm < 5.5 mm: lower excursion-limited SPL	+
Precision Devices PD152	40 =	0.269 =	170 -32	5.5 =	99 -1.3	close	16 Ω vs 8 Ω: amp load changes · 400 W vs 625 W: lower power handling	+

Compare the closest 3 against the 5215B v2017 →

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.