Volt RV3143 v2014

12" · 8 Ω · 300 W · 93.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	35 Hz
Qts	0.302
Qes	0.32
Qms	5.35
Vas	86 L
Sd	479 cm²
Xmax	5.2 mm
Re	6.1 Ω
Bl	18 T·m
Mms	77.3 g
Pe	300 W
Sensitivity	93.8 dB

Alignment hint

EBP	109 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 19.2 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
the box Speaker 12-280/8-W	38 +3	0.304 =	75.7 -10.3	5.5 +0.3	94 +0.2	close		+
Magnat XTC300	30 -5	0.317 +0.02	81 -5	6.9 +1.7	93.8 =	close	4 Ω vs 8 Ω: amp load changes	+
Eminence OMEGA PRO 12	39 +4	0.308 +0.01	88.4 +2.4	4.8 -0.4	96 +2.2	close	Xmax 4.8 mm < 5.2 mm: lower excursion-limited SPL	+
SICA 12 S 2.5 CS	33 -2	0.265 -0.04	93.7 +7.7	6 +0.8	94 +0.2	close		+
Ciare HSB322 4-4	36 +1	0.363 +0.06	83 -3	5.4 +0.2	93 -0.8	close	200 W vs 300 W: lower power handling	+
Dayton Audio PA310-8	39 +4	0.292 -0.01	91.8 +5.8	5 -0.2	96.2 +2.4	close	Xmax 5 mm < 5.2 mm: lower excursion-limited SPL	+
BMS 12S305	35 =	0.265 -0.04	82 -4	11 +5.8	95 +1.2	close		+
Volt RV3143	34 -1	0.347 +0.04	76 -10	5.2 =	92.3 -1.5	close		+
P.Audio BM-12W	38 +3	0.335 +0.03	90.27 +4.27	4.5 -0.7	92.9 -0.9	close	4 Ω vs 8 Ω: amp load changes · Xmax 4.5 mm < 5.2 mm: lower excursion-limited SPL	+
PHL Audio 4020	29 -6	0.299 =	92 +6	7 +1.8	92.1 -1.7	close		+

Compare the closest 3 against the RV3143 v2014 →

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.