Davis 40RCA15 vp3

15" · 8 Ω · 200 W · 98.6 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	26.2 Hz
Qts	0.218
Qes	0.223
Qms	10.44
Vas	380.7 L
Sd	804 cm²
Xmax	5 mm
Re	5.39 Ω
Bl	18.7 T·m
Mms	87.6 g
Pe	200 W
Sensitivity	98.6 dB

Alignment hint

EBP	117 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 40 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
Supravox 400-2000EXC_14V	25 -1.2	0.214 =	439 +58.3	5 =	97.8 -0.8	close	120 W vs 200 W: lower power handling	+
Audax PR380M2 v2009	25 -1.2	0.191 -0.03	380 -0.7	5.5 +0.5	98.2 -0.4	close		+
Davis 38RCA15	29 +2.8	0.24 +0.02	373 -7.7	5 =	98.2 -0.4	close		+
Supravox 400-2000EXC_15V	25 -1.2	0.196 -0.02	429 +48.3	4.9 -0.1	98.1 -0.5	close	120 W vs 200 W: lower power handling · Xmax 4.9 mm < 5 mm: lower excursion-limited SPL	+
Supravox 400-2000EXC_13V	25 -1.2	0.236 +0.02	438 +57.3	5 =	97.4 -1.2	close	120 W vs 200 W: lower power handling	+
Altec 604-2	27.1 +0.9	0.213 -0.01	446 +65.3	3.8 -1.2	98.6 =	close	100 W vs 200 W: lower power handling · Xmax 3.8 mm < 5 mm: lower excursion-limited SPL	+
Altec 604-E	27.1 +0.9	0.213 -0.01	446 +65.3	3.8 -1.2	98.6 =	close	100 W vs 200 W: lower power handling · Xmax 3.8 mm < 5 mm: lower excursion-limited SPL	+
Great Plains Audio 604-D	27.1 +0.9	0.213 -0.01	446 +65.3	3.8 -1.2	98.6 =	close	100 W vs 200 W: lower power handling · Xmax 3.8 mm < 5 mm: lower excursion-limited SPL	+
Beyma SM115/K vp1	27.6 +1.4	0.222 =	296.7 -84	8 +3	98.3 -0.3	close		+
Scan-Speak 38WE/8582T00	26 -0.2	0.243 +0.02	423 +42.3	9.5 +4.5	97.5 -1.1	close		+

Compare the closest 3 against the 40RCA15 vp3 →

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.