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Alpine 6126GX

12" · 4 Ω · 200 W · 94.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size12"
Impedance4 Ω
Fs26 Hz
Qts0.532
Qes0.56
Qms10.72
Vas233 L
Sd530 cm²
Xmax8.2 mm
Re3.3 Ω
Bl7.8 T·m
Mms63.3 g
Pe200 W
Sensitivity94.5 dB

Alignment hint

EBP46 · sealed
Sealed Vb (Qtc ≈ 0.71)≈ 303.9 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

DriverFs (Hz)QtsVas (L)Xmax (mm)Sens (dB)FitNotesCompare
JBL 123A25 -10.49 -0.04235 +27.9 -0.393.1 -1.4close8 Ω vs 4 Ω: amp load changes · 100 W vs 200 W: lower power handling · Xmax 7.9 mm < 8.2 mm: lower excursion-limited SPL+
JBL 2213H25 -10.49 -0.04235 +27.9 -0.393.1 -1.4close8 Ω vs 4 Ω: amp load changes · 75 W vs 200 W: lower power handling · Xmax 7.9 mm < 8.2 mm: lower excursion-limited SPL+
JBL 221325 -10.49 -0.04235 +26.8 -1.493.1 -1.4close8 Ω vs 4 Ω: amp load changes · 50 W vs 200 W: lower power handling · Xmax 6.8 mm < 8.2 mm: lower excursion-limited SPL+
Philips AD12250W8 vp doum228.7 +2.70.51 -0.02237 +46 -2.292.5 -2usable8 Ω vs 4 Ω: amp load changes · 100 W vs 200 W: lower power handling · Xmax 6 mm < 8.2 mm: lower excursion-limited SPL+
AE Speakers DIPOLE 12-D425.9 -0.10.685 +0.15273 +4010 +1.894.2 -0.3usable100 W vs 200 W: lower power handling+
Peerless SLS31524.4 -1.60.452 -0.08205.2 -27.87.8 -0.491.4 -3.1usable8 Ω vs 4 Ω: amp load changes · 100 W vs 200 W: lower power handling · Xmax 7.8 mm < 8.2 mm: lower excursion-limited SPL+
SB Acoustics SB34NRX75-6 vp22.2 -3.80.444 -0.09240 +711 +2.892 -2.5usable8 Ω vs 4 Ω: amp load changes+
AE Speakers LO12-D827.5 +1.50.431 -0.1273 +409 +0.897.1 +2.6usable+
Peerless 83185724 -20.433 -0.1210 -239 +0.891.3 -3.2usable8 Ω vs 4 Ω: amp load changes+
Peerless 315SWR24 -20.433 -0.1210 -238 -0.291.3 -3.2usable8 Ω vs 4 Ω: amp load changes · Xmax 8 mm < 8.2 mm: lower excursion-limited SPL+

Compare the closest 3 against the 6126GX →

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)

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