Jensen C12Q-8

12" · 8 Ω · 35 W · 94.8 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	87.3 Hz
Qts	1.69
Qes	1.94
Qms	13.14
Vas	44.1 L
Sd	490.8 cm²
Xmax	0.8 mm
Re	6.36 Ω
Bl	6.8 T·m
Mms	25.4 g
Pe	35 W
Sensitivity	94.8 dB

Alignment hint

EBP	45 · 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

Driver	Fs (Hz)	Qts	Vas (L)	Xmax (mm)	Sens (dB)	Fit	Notes	Compare
Jensen P12Q	90.4 +3.1	1.944 +0.25	47.5 +3.4	0.8 =	95.1 +0.3	close		+
Jensen P12R	80 -7.3	1.795 +0.1	66.4 +22.3	0.8 =	95.3 +0.5	usable	25 W vs 35 W: lower power handling	+
Beyma 12GA50	90 +2.7	1.16 -0.53	34 -10.1	2 +1.2	94.8 =	usable		+
Visaton FR 30	90 +2.7	1.284 -0.41	27 -17.1	1.1 +0.3	93.7 -1.1	usable		+
Jensen JCH 1270-8	78 -9.3	1.084 -0.61	46.7 +2.6	1.5 +0.7	96.6 +1.8	usable		+
Eminence RED FANG 16	89 +1.7	0.971 -0.72	50.2 +6.1	0.5 -0.3	95.6 +0.8	usable	16 Ω vs 8 Ω: amp load changes · Xmax 0.5 mm < 0.8 mm: lower excursion-limited SPL	+
Celestion G12T 75	85 -2.3	0.836 -0.85	51 +6.9	2 +1.2	95.3 +0.5	risky	16 Ω vs 8 Ω: amp load changes	+
Celestion F12M-150 Triple Cone	69.4 -17.9	0.906 -0.78	46.9 +2.8	2.3 +1.5	95.2 +0.4	risky		+
Celestion G12T-100	81 -6.3	0.833 -0.86	47 +2.9	2 +1.2	96.8 +2	risky		+
Eminence LEGEND 1258	94 +6.7	0.99 -0.7	32.5 -11.6	0.5 -0.3	95.9 +1.1	risky	Xmax 0.5 mm < 0.8 mm: lower excursion-limited SPL	+

Compare the closest 3 against the C12Q-8 →

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.