Altec 3182 vp

18" · 8 Ω · 180 W · 96.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size	18"
Impedance	8 Ω
Fs	20.3 Hz
Qts	0.343
Qes	0.42
Qms	1.87
Vas	1159.7 L
Sd	1152.1 cm²
Xmax	10.2 mm
Re	6.6 Ω
Bl	14 T·m
Mms	98.2 g
Pe	180 W
Sensitivity	96.5 dB

Alignment hint

EBP	48 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 356.8 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
McCauley 6174	20 -0.3	0.336 -0.01	733.4 -426.3	15.2 +5	95.4 -1.1	usable		+
Altec 3182	18 -2.3	0.398 +0.05	991.1 -168.6	10.7 +0.5	93.5 -3	usable		+
Fostex FW 505	20 -0.3	0.404 +0.06	860 -299.7	8.5 -1.7	94.3 -2.2	usable	Xmax 8.5 mm < 10.2 mm: lower excursion-limited SPL	+
JBL 2245H	20 -0.3	0.24 -0.1	821.2 -338.5	8.5 -1.7	97.2 +0.7	usable	Xmax 8.5 mm < 10.2 mm: lower excursion-limited SPL	+
Eminence 111712	21.6 +1.3	0.288 -0.06	736.2 -423.5	5.8 -4.4	97.1 +0.6	usable	Xmax 5.8 mm < 10.2 mm: lower excursion-limited SPL	+
RCF LP 18/551	21.7 +1.4	0.222 -0.12	760 -399.7	10 -0.2	98.8 +2.3	usable	Xmax 10 mm < 10.2 mm: lower excursion-limited SPL	+
RCF L 18P200KN	22.3 +2	0.265 -0.08	550 -609.7	9 -1.2	96.4 -0.1	usable	Xmax 9 mm < 10.2 mm: lower excursion-limited SPL	+
Beyma 18LX60	27 +6.7	0.368 +0.02	500 -659.7	9 -1.2	97.7 +1.2	risky	Xmax 9 mm < 10.2 mm: lower excursion-limited SPL	+
Eminence JAY7010	28.1 +7.8	0.314 -0.03	546.6 -613.1	9.1 -1.1	99.2 +2.7	risky	Xmax 9.1 mm < 10.2 mm: lower excursion-limited SPL	+
MCM Electronics 55-2964	27 +6.7	0.313 -0.03	630.6 -529.1	6 -4.2	98.1 +1.6	risky	Xmax 6 mm < 10.2 mm: lower excursion-limited SPL	+

Compare the closest 3 against the 3182 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.