Radian 2215 B-8

15" · 8 Ω · 800 W · 97 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	41.8 Hz
Qts	0.321
Qes	0.42
Qms	1.36
Vas	135.5 L
Sd	868 cm²
Xmax	6 mm
Re	6 Ω
Bl	20.6 T·m
Mms	113 g
Pe	800 W
Sensitivity	97 dB

Alignment hint

EBP	100 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 35.2 L

EBP 50-100: works in either a sealed or ported 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
B&C 15CL76	42 +0.2	0.33 +0.01	135 -0.5	7 +1	98.5 +1.5	close	400 W vs 800 W: lower power handling	+
B&C 15 CL 76	42 +0.2	0.326 +0.01	135 -0.5	5.2 -0.8	98.6 +1.6	close	400 W vs 800 W: lower power handling · Xmax 5.2 mm < 6 mm: lower excursion-limited SPL	+
SB Audience BIANCO-15MW500	39 -2.8	0.307 -0.01	139.4 +3.9	5.9 -0.1	97.7 +0.7	close	500 W vs 800 W: lower power handling · Xmax 5.9 mm < 6 mm: lower excursion-limited SPL	+
Beyma SM115/K vp3	39 -2.8	0.333 +0.01	147.5 +12	6.3 +0.3	96.9 -0.1	close	500 W vs 800 W: lower power handling	+
Faital PRO 15FH500 vp1	40 -1.8	0.328 +0.01	146.1 +10.6	6.7 +0.7	98.4 +1.4	close	500 W vs 800 W: lower power handling	+
Faital PRO 15FH500 vp3	40.8 -1	0.343 +0.02	141.8 +6.3	6.7 +0.7	98.2 +1.2	close	500 W vs 800 W: lower power handling	+
BMS 15N620-8	40 -1.8	0.313 -0.01	144.8 +9.3	5.5 -0.5	97.8 +0.8	close	500 W vs 800 W: lower power handling · Xmax 5.5 mm < 6 mm: lower excursion-limited SPL	+
Sica 15 S 4 PL	39.5 -2.3	0.32 =	127.6 -7.9	10 +4	97.8 +0.8	close		+
Precision Devices 900 Series PD915	42.9 +1.1	0.28 -0.04	129.52 -5.98	6 =	97 =	close	600 W vs 800 W: lower power handling	+
18 Sound 15LW2400	40 -1.8	0.3 -0.02	131 -4.5	10 +4	97 =	close		+

Compare the closest 3 against the 2215 B-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.