Ardan PRO W-31

12" · 8 Ω · 200 W · 95.3 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	36.4 Hz
Qts	0.382
Qes	0.439
Qms	2.922
Vas	170.6 L
Sd	551 cm²
Xmax	4 mm
Re	7 Ω
Bl	13.2 T·m
Mms	47.7 g
Pe	200 W
Sensitivity	95.3 dB

Alignment hint

EBP	83 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 70.3 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
Supravox 285 GMF vp5	35 -1.4	0.372 -0.01	150 -20.6	4 =	95.4 +0.1	close	70 W vs 200 W: lower power handling	+
Supravox 285 GMF vp6	35 -1.4	0.372 -0.01	150 -20.6	4 =	95.4 +0.1	close	70 W vs 200 W: lower power handling	+
Beyma HP12	36 -0.4	0.401 +0.02	200 +29.4	4 =	95.6 +0.3	close	150 W vs 200 W: lower power handling	+
Eminence DELTALITE II 2512 v2	37 +0.6	0.386 =	147 -23.6	4.9 +0.9	96.3 +1	close		+
Sonido SCW-300	35 -1.4	0.401 +0.02	210 +39.4	4.5 +0.5	95 -0.3	close	50 W vs 200 W: lower power handling	+
Ardan W PRO-31	36.8 +0.4	0.373 -0.01	133.9 -36.7	6 +2	94.6 -0.7	close		+
Klipsch K28E	35.1 -1.3	0.441 +0.06	152.7 -17.9	4 =	96.5 +1.2	close	4 Ω vs 8 Ω: amp load changes · 100 W vs 200 W: lower power handling	+
Davis KIT ALBEDO	37.5 +1.1	0.459 +0.08	166 -4.6	5 +1	96.5 +1.2	close	150 W vs 200 W: lower power handling	+
Beyma 12BR70	35 -1.4	0.355 -0.03	135 -35.6	4.8 +0.8	94.7 -0.6	close	125 W vs 200 W: lower power handling	+
Tannoy DC 3134 CPA12	37.7 +1.3	0.369 -0.01	226.7 +56.1	5 +1	96.1 +0.8	close	16 Ω vs 8 Ω: amp load changes · 75 W vs 200 W: lower power handling	+

Compare the closest 3 against the PRO W-31 →

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.