Tannoy 3149R

12" · 8 Ω · 80 W · 95.2 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	38 Hz
Qts	0.436
Qes	0.5
Qms	3.4
Vas	138 L
Sd	550 cm²
Xmax	2.6 mm
Re	5.8 Ω
Bl	12.2 T·m
Mms	53.9 g
Pe	80 W
Sensitivity	95.2 dB

Alignment hint

EBP	76 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 84.6 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
Monacor SP-300PA	40 +2	0.435 =	150 +12	3.3 +0.7	95.3 +0.1	close		+
Klipsch K28E	35.1 -2.9	0.441 +0.01	152.7 +14.7	4 +1.4	96.5 +1.3	close	4 Ω vs 8 Ω: amp load changes	+
Conrad PA 12	42.9 +4.9	0.462 +0.03	129.2 -8.8	4 +1.4	95.2 =	close		+
JBL 2125	45 +7	0.45 +0.01	135.9 -2.1	2.5 -0.1	97.2 +2	close	50 W vs 80 W: lower power handling · Xmax 2.5 mm < 2.6 mm: lower excursion-limited SPL	+
JBL D123	45 +7	0.45 +0.01	135.9 -2.1	2.5 -0.1	97.2 +2	close	50 W vs 80 W: lower power handling · Xmax 2.5 mm < 2.6 mm: lower excursion-limited SPL	+
Eminence ME12/200LF	36.4 -1.6	0.482 +0.05	131.9 -6.1	3.7 +1.1	93.3 -1.9	close		+
Eminence MME 2008 LF	36.4 -1.6	0.482 +0.05	131.9 -6.1	3.7 +1.1	93.3 -1.9	close		+
LaVoce LBASS12-15	38 =	0.48 +0.04	160.93 +22.93	4.7 +2.1	95.5 +0.3	close		+
Visaton BZ300 4 Ohms	36 -2	0.483 +0.05	129 -9	5 +2.4	95.7 +0.5	close	4 Ω vs 8 Ω: amp load changes	+
Hyper Phase CM12	40 +2	0.372 -0.06	135 -3	3.5 +0.9	96.3 +1.1	close		+

Compare the closest 3 against the 3149R →

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.