P.Audio C15-400B

15" · 8 Ω · 400 W · 99.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	42.9 Hz
Qts	0.329
Qes	0.35
Qms	5.46
Vas	177.3 L
Sd	829 cm²
Xmax	3.3 mm
Re	5.3 Ω
Bl	17.5 T·m
Mms	74.8 g
Pe	400 W
Sensitivity	99.8 dB

Alignment hint

EBP	123 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 49 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
JBL 2035HPL	43 +0.1	0.335 +0.01	184 +6.7	5.1 +1.8	100.4 +0.6	close	300 W vs 400 W: lower power handling	+
Peavey 1505 DT vp 1993 rouge	43.6 +0.7	0.318 -0.01	171.5 -5.8	5.1 +1.8	99.8 =	close		+
P.Audio SN-15MB	47 +4.1	0.329 =	176.8 -0.5	3.3 =	101.1 +1.3	close	200 W vs 400 W: lower power handling	+
Monacor SP-38A/300NEO	44 +1.1	0.313 -0.02	164 -13.3	3.5 +0.2	100 +0.2	close	300 W vs 400 W: lower power handling	+
Audax PR38LEX100VST vp CBM	42 -0.9	0.343 +0.01	195 +17.7	3.5 +0.2	99.4 -0.4	close	250 W vs 400 W: lower power handling	+
Sica 15 Fe 3 CP	40.2 -2.7	0.33 =	170.4 -6.9	5.5 +2.2	99.4 -0.4	close		+
Beyma 15GF200	44 +1.1	0.31 -0.02	191 +13.7	3.8 +0.5	100.5 +0.7	close	250 W vs 400 W: lower power handling	+
Fane STUDIO 15L	45 +2.1	0.338 +0.01	190 +12.7	4.3 +1	100.6 +0.8	close	200 W vs 400 W: lower power handling	+
PHL Audio 5221 SP	41 -1.9	0.329 =	190 +12.7	6.6 +3.3	99.5 -0.3	close		+
Beyma 15BBB	42 -0.9	0.38 +0.05	176 -1.3	3.3 =	99.2 -0.6	close	150 W vs 400 W: lower power handling	+

Compare the closest 3 against the C15-400B →

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.