Realistic PRO 250 vp

15" · 8 Ω · 250 W · 97.9 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	47.3 Hz
Qts	0.619
Qes	0.76
Qms	3.35
Vas	196.6 L
Sd	870.9 cm²
Xmax	5.5 mm
Re	5.6 Ω
Bl	11.6 T·m
Mms	61.3 g
Pe	250 W
Sensitivity	97.9 dB

Alignment hint

EBP	62 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 644.7 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
Celestion BL15-150	49 +1.7	0.593 -0.03	179.8 -16.8	4.3 -1.2	98.4 +0.5	close	150 W vs 250 W: lower power handling · Xmax 4.3 mm < 5.5 mm: lower excursion-limited SPL	+
Eminence DELTA 15 LF	41 -6.3	0.584 -0.04	186.1 -10.5	6 +0.5	96 -1.9	close		+
Eminence 040580-67-95380096-151035	44.5 -2.8	0.538 -0.08	204.9 +8.3	5.6 +0.1	100.3 +2.4	close	4 Ω vs 8 Ω: amp load changes	+
Fane 15-400LF v2016	41 -6.3	0.573 -0.05	210 +13.4	5 -0.5	97.1 -0.8	close	Xmax 5 mm < 5.5 mm: lower excursion-limited SPL	+
Fane SOVEREIGN 15-400 LF	41 -6.3	0.573 -0.05	210 +13.4	5 -0.5	97.1 -0.8	close	Xmax 5 mm < 5.5 mm: lower excursion-limited SPL	+
Selenium 38GPT12	42.2 -5.1	0.657 +0.04	185.7 -10.9	5 -0.5	95.8 -2.1	close	Xmax 5 mm < 5.5 mm: lower excursion-limited SPL	+
RCF L 15P854K	47 -0.3	0.518 -0.1	177 -19.6	10 +4.5	99 +1.1	usable		+
SB Audience BIANCO-15MW200	44 -3.3	0.586 -0.03	153 -43.6	5.2 -0.3	96 -1.9	usable	Xmax 5.2 mm < 5.5 mm: lower excursion-limited SPL	+
Fane 15-400LF	39 -8.3	0.577 -0.04	210 +13.4	5 -0.5	96.1 -1.8	usable	Xmax 5 mm < 5.5 mm: lower excursion-limited SPL	+
Fane FC-152F01TC	48 +0.7	0.7 +0.08	203 +6.4	3.5 -2	98.6 +0.7	usable	Xmax 3.5 mm < 5.5 mm: lower excursion-limited SPL	+

Compare the closest 3 against the PRO 250 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.