Rythmik Audio DS1200

12" · 4 Ω · 350 W · 91.7 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	26 Hz
Qts	0.444
Qes	0.472
Qms	7.42
Vas	88 L
Sd	530 cm²
Xmax	8.8 mm
Re	2.8 Ω
Bl	12.7 T·m
Mms	167.7 g
Pe	350 W
Sensitivity	91.7 dB

Alignment hint

EBP	55 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 57.3 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
JL Audio 12W3V3-4	26.7 +0.7	0.446 =	80.6 -7.4	10.9 +2.1	90.6 -1.1	close		+
JBL GT 120	24.8 -1.2	0.429 -0.02	91.1 +3.1	8.1 -0.7	90.3 -1.4	close	250 W vs 350 W: lower power handling · Xmax 8.1 mm < 8.8 mm: lower excursion-limited SPL	+
JBL GT 120MKII	24.8 -1.2	0.429 -0.02	91.1 +3.1	8.1 -0.7	90.3 -1.4	close	250 W vs 350 W: lower power handling · Xmax 8.1 mm < 8.8 mm: lower excursion-limited SPL	+
JBL GT4-12	24.8 -1.2	0.429 -0.02	91.1 +3.1	8.1 -0.7	90.3 -1.4	close	250 W vs 350 W: lower power handling · Xmax 8.1 mm < 8.8 mm: lower excursion-limited SPL	+
Morel PRIMO 12	28 +2	0.474 +0.03	85 -3	8 -0.8	91.5 -0.2	close	Xmax 8 mm < 8.8 mm: lower excursion-limited SPL	+
Aura Sound NS12-794-4A	27 +1	0.423 -0.02	78 -10	9.9 +1.1	90.9 -0.8	close		+
Infinity 1230W	27.3 +1.3	0.437 -0.01	78.5 -9.5	7.9 -0.9	91 -0.7	close	Xmax 7.9 mm < 8.8 mm: lower excursion-limited SPL	+
Focal SUB12	24 -2	0.407 -0.04	90 +2	9.8 +1	90.7 -1	close		+
Tymphany LAT 500-04	28 +2	0.474 +0.03	81 -7	7.7 -1.1	91.6 -0.1	close	250 W vs 350 W: lower power handling · Xmax 7.7 mm < 8.8 mm: lower excursion-limited SPL	+
Dayton Audio RSS315HF-4	25 -1	0.489 +0.04	85.1 -2.9	10.1 +1.3	89.4 -2.3	close		+

Compare the closest 3 against the DS1200 →

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.