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JB Systems SP12/200 vp

12" · 8 Ω · 200 W · 89.5 dB · datasheet ↗

Thiele-Small parameters

Nominal size12"
Impedance8 Ω
Fs42.9 Hz
Qts1.385
Qes1.694
Qms7.585
Vas107.3 L
Sd540 cm²
Xmax3 mm
Re7.12 Ω
Bl7.7 T·m
Mms52.4 g
Pe200 W
Sensitivity89.5 dB

Alignment hint

EBP25 · sealed
Sealed Vb (Qtc ≈ 0.71)Qts too high

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
Sphynx SP-31-S41 -1.91.255 -0.13101 -6.33.8 +0.888.8 -0.7close150 W vs 200 W: lower power handling+
Goldwood GW-212/838.8 -4.11.439 +0.05101.7 -5.62.5 -0.587.3 -2.2close120 W vs 200 W: lower power handling · Xmax 2.5 mm < 3 mm: lower excursion-limited SPL+
Goldwood 212/838 -4.91.44 +0.05101.6 -5.72.5 -0.586.3 -3.2usable120 W vs 200 W: lower power handling · Xmax 2.5 mm < 3 mm: lower excursion-limited SPL+
Jinwey YDA-300-449.4 +6.51.601 +0.2293.2 -14.12.2 -0.890 +0.5usable100 W vs 200 W: lower power handling · Xmax 2.2 mm < 3 mm: lower excursion-limited SPL+
Jinwey YDA-300-849.4 +6.51.601 +0.2293.2 -14.12.2 -0.890 +0.5usable100 W vs 200 W: lower power handling · Xmax 2.2 mm < 3 mm: lower excursion-limited SPL+
Lautsprecher Technik MHB-1238.2 -4.71.107 -0.28132.7 +25.45 +288.9 -0.6usable+
Elokance 12WF50050 +7.11.102 -0.2899.1 -8.23.6 +0.693.2 +3.7usable120 W vs 200 W: lower power handling+
GRS 12PF-835 -7.91.543 +0.16149.5 +42.23.5 +0.587.1 -2.4usable100 W vs 200 W: lower power handling+
Pioneer PAX30G vp242.1 -0.80.879 -0.5192.7 -14.63 =88.2 -1.3usable16 Ω vs 8 Ω: amp load changes · 60 W vs 200 W: lower power handling+
Goldwood GW‐212/435.8 -7.11.204 -0.18166.6 +59.33.5 +0.588.9 -0.6usable4 Ω vs 8 Ω: amp load changes · 120 W vs 200 W: lower power handling+

Compare the closest 3 against the SP12/200 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.