Oxygen SPIRAL 300

12" · 4 Ω · 250 W · 92 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	32 Hz
Qts	0.56
Qes	0.627
Qms	5.247
Vas	81 L
Sd	510 cm²
Xmax	7.6 mm
Re	3.4 Ω
Bl	11 T·m
Mms	111.4 g
Pe	250 W
Sensitivity	92 dB

Alignment hint

EBP	51 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 136.3 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
Phoenix Gold RYVAL V12D	30 -2	0.552 -0.01	81.9 +0.9	6.4 -1.2	91.4 -0.6	close	150 W vs 250 W: lower power handling · Xmax 6.4 mm < 7.6 mm: lower excursion-limited SPL	+
Focal 33V2	28.7 -3.3	0.537 -0.02	76.2 -4.8	7.5 -0.1	92.5 +0.5	close	Xmax 7.5 mm < 7.6 mm: lower excursion-limited SPL	+
Magnat POWER BULL 300	33 +1	0.479 -0.08	82 +1	8.1 +0.5	93 +1	close		+
American Bass SL 124	31.5 -0.5	0.543 -0.02	85.7 +4.7	8.5 +0.9	88.3 -3.7	close		+
MTX Audio XT12-04	33 +1	0.56 =	66 -15	6.5 -1.1	91.7 -0.3	close	Xmax 6.5 mm < 7.6 mm: lower excursion-limited SPL	+
JBL STAGE 1210	31.7 -0.3	0.55 -0.01	64.6 -16.4	6.6 -1	90.8 -1.2	close	Xmax 6.6 mm < 7.6 mm: lower excursion-limited SPL	+
Tymphany LAT 500-04	28 -4	0.474 -0.09	81 =	7.7 +0.1	91.6 -0.4	close		+
Kicker ES124	30.4 -1.6	0.549 -0.01	97.7 +16.7	6.2 -1.4	92.2 +0.2	close	125 W vs 250 W: lower power handling · Xmax 6.2 mm < 7.6 mm: lower excursion-limited SPL	+
JBL GT3-12	28.2 -3.8	0.541 -0.02	100.5 +19.5	8.2 +0.6	91.8 -0.2	close		+
Pyle Audio PLPW12D	32.9 +0.9	0.534 -0.03	84.1 +3.1	6 -1.6	89.4 -2.6	close	8 Ω vs 4 Ω: amp load changes · Xmax 6 mm < 7.6 mm: lower excursion-limited SPL	+

Compare the closest 3 against the SPIRAL 300 →

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.