Artech SPC-303

12" · 8 Ω · 200 W · 88.9 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	8 Ω
Fs	28.9 Hz
Qts	0.494
Qes	0.71
Qms	1.62
Vas	129 L
Sd	506 cm²
Xmax	6 mm
Re	7.1 Ω
Bl	12.4 T·m
Mms	84.2 g
Pe	200 W
Sensitivity	88.9 dB

Alignment hint

EBP	41 · sealed
Sealed Vb (Qtc ≈ 0.71)	≈ 123 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
Monacor SPH-300KE vp2	27.6 -1.3	0.489 -0.01	139.3 +10.3	6.5 +0.5	90.4 +1.5	close	120 W vs 200 W: lower power handling	+
Peerless XXLS-P830845	27 -1.9	0.517 +0.02	119.5 -9.5	7.6 +1.6	89.8 +0.9	close		+
HiVi D10G	26 -2.9	0.465 -0.03	117.3 -11.7	8.3 +2.3	89 +0.1	close	150 W vs 200 W: lower power handling	+
Beyma 12BR70 v2014	31 +2.1	0.497 =	142 +13	6 =	92.3 +3.4	close	125 W vs 200 W: lower power handling	+
Beyma 12BR70 v2015	31 +2.1	0.497 =	142 +13	6 =	92.3 +3.4	close	125 W vs 200 W: lower power handling	+
Peerless SLS12 830669 v2012	31 +2.1	0.536 +0.04	132.4 +3.4	6.1 +0.1	91.9 +3	close	100 W vs 200 W: lower power handling	+
Alpine SWE-1244E	31 +2.1	0.53 +0.04	102.5 -26.5	7.5 +1.5	88.7 -0.2	close	4 Ω vs 8 Ω: amp load changes	+
Beyma 12"BR70	31 +2.1	0.5 +0.01	142 +13	8 +2	93 +4.1	close	125 W vs 200 W: lower power handling	+
Focal 33V	25.2 -3.7	0.479 -0.02	128.8 -0.2	7.5 +1.5	93 +4.1	close	4 Ω vs 8 Ω: amp load changes	+
JBL P1200	30 +1.1	0.45 -0.04	123 -6	7.8 +1.8	92.8 +3.9	close		+

Compare the closest 3 against the SPC-303 →

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.