Blaupunkt VELOCITY VRS15

15" · 4 Ω · 600 W · 93.1 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	4 Ω
Fs	21 Hz
Qts	0.499
Qes	0.53
Qms	8.5
Vas	291 L
Sd	750 cm²
Xmax	7.5 mm
Re	3.12 Ω
Bl	11 T·m
Mms	155.6 g
Pe	600 W
Sensitivity	93.1 dB

Alignment hint

EBP	40 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 288.7 L

EBP < 50: favours a sealed (closed) 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
Dayton Audio DCS380-4	22.9 +1.9	0.504 +0.01	233.9 -57.1	8.4 +0.9	92.9 -0.2	close	250 W vs 600 W: lower power handling	+
Dayton Audio DCS380-4 v2017	21.5 +0.5	0.434 -0.06	267 -24	8.4 +0.9	93.7 +0.6	close	250 W vs 600 W: lower power handling	+
MTX Audio T3154	22.7 +1.7	0.561 +0.06	315.9 +24.9	9.4 +1.9	93.8 +0.7	close	200 W vs 600 W: lower power handling	+
Dayton Audio DVC385-88	20.9 -0.1	0.446 -0.05	237 -54	11.1 +3.6	93.8 +0.7	close	350 W vs 600 W: lower power handling	+
Rockville RVW1500P8	28.3 +7.3	0.503 =	254 -37	7.5 =	92.7 -0.4	usable	8 Ω vs 4 Ω: amp load changes	+
Hertz Audio ES380	24 +3	0.52 +0.02	220 -71	9 +1.5	93.7 +0.6	usable	450 W vs 600 W: lower power handling	+
MTX Audio RT15-04	20 -1	0.479 -0.02	223 -68	10.3 +2.8	90.8 -2.3	usable	300 W vs 600 W: lower power handling	+
Oxygen AIR 15.1	25 +4	0.465 -0.03	262.1 -28.9	11.1 +3.6	94.5 +1.4	usable	400 W vs 600 W: lower power handling	+
AE Speakers SBP15-8	21.3 +0.3	0.432 -0.07	364 +73	14 +6.5	92.3 -0.8	usable	8 Ω vs 4 Ω: amp load changes	+
Dayton Audio UM15-22 ULTIMAX DVC	19.5 -1.5	0.474 -0.03	224.3 -66.7	9.5 +2	90.2 -2.9	usable		+

Compare the closest 3 against the VELOCITY VRS15 →

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.