Altec 414 B vp

12" · 16 Ω · 150 W · 97.3 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	16 Ω
Fs	29 Hz
Qts	0.256
Qes	0.27
Qms	5
Vas	377 L
Sd	507 cm²
Xmax	4 mm
Re	8 Ω
Bl	12.5 T·m
Mms	28.8 g
Pe	150 W
Sensitivity	97.3 dB

Alignment hint

EBP	107 · ported
Sealed Vb (Qtc ≈ 0.71)	≈ 56.9 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
Ciare CW322	22 -7	0.251 -0.01	355 -22	5 +1	97.4 +0.1	close	4 Ω vs 16 Ω: amp load changes · 100 W vs 150 W: lower power handling	+
Siare 31TE V2	23 -6	0.265 +0.01	387 +10	5 +1	95.9 -1.4	close	8 Ω vs 16 Ω: amp load changes	+
Audax HD33S66 vp	28.8 -0.2	0.272 +0.02	441.3 +64.3	9.9 +5.9	98.5 +1.2	close	8 Ω vs 16 Ω: amp load changes	+
Davis 31TCA12W	27 -2	0.283 +0.03	335 -42	6 +2	96.2 -1.1	close	8 Ω vs 16 Ω: amp load changes	+
Audax PR330M0	28 -1	0.269 +0.01	264 -113	4 =	96.5 -0.8	usable	8 Ω vs 16 Ω: amp load changes	+
Crites Speakers CW1228	27.7 -1.3	0.277 +0.02	286.6 -90.4	6.4 +2.4	96.3 -1	usable	8 Ω vs 16 Ω: amp load changes	+
Monacor SPH-300TC	23 -6	0.239 -0.02	290 -87	4 =	97.3 =	usable	4 Ω vs 16 Ω: amp load changes	+
Monacor SPH-300TC v2	23 -6	0.239 -0.02	290 -87	4 =	97.3 =	usable	4 Ω vs 16 Ω: amp load changes	+
Siare 31TE	23 -6	0.265 +0.01	322 -55	5 +1	95.1 -2.2	usable	8 Ω vs 16 Ω: amp load changes	+
Visaton W300S4	23 -6	0.253 =	300 -77	7 +3	96.4 -0.9	usable	4 Ω vs 16 Ω: amp load changes	+

Compare the closest 3 against the 414 B 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.