Celestion FTR15 3070C vp

15" · 8 Ω · 400 W · 97.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	41.4 Hz
Qts	0.382
Qes	0.429
Qms	3.51
Vas	187.6 L
Sd	851 cm²
Xmax	3 mm
Re	6.7 Ω
Bl	18 T·m
Mms	80 g
Pe	400 W
Sensitivity	97.7 dB

Alignment hint

EBP	97 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 77.3 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
Monacor SPA-115PA	40 -1.4	0.397 +0.02	184 -3.6	4 +1	98 +0.3	close	250 W vs 400 W: lower power handling	+
Beyma 15BBB	42 +0.6	0.38 =	176 -11.6	3.3 +0.3	99.2 +1.5	close	150 W vs 400 W: lower power handling	+
P.Audio 15BM-500B	41 -0.4	0.374 -0.01	183.4 -4.2	4.8 +1.8	98.5 +0.8	close		+
Monacor SP-15/200PA	42 +0.6	0.375 -0.01	197 +9.4	4.7 +1.7	98.2 +0.5	close	200 W vs 400 W: lower power handling	+
P.Audio C15-300MB	42 +0.6	0.375 -0.01	199.5 +11.9	3.5 +0.5	99.4 +1.7	close	300 W vs 400 W: lower power handling	+
Radian 2216	38.7 -2.7	0.375 -0.01	183.9 -3.7	4.8 +1.8	97 -0.7	close		+
Celestion FTR15-3070C	40 -1.4	0.361 -0.02	208 +20.4	3 =	98.3 +0.6	close		+
DAS Audio KCS S1535	41 -0.4	0.428 +0.05	178.8 -8.8	3.5 +0.5	98 +0.3	close	200 W vs 400 W: lower power handling	+
Selenium 15PW5	40 -1.4	0.4 +0.02	190 +2.4	5.7 +2.7	98.3 +0.6	close		+
Fane SOVEREIGN PRO 15-600 LF	40 -1.4	0.364 -0.02	188 +0.4	6.9 +3.9	97.9 +0.2	close		+

Compare the closest 3 against the FTR15 3070C vp →

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.