Peerless SBS-300F38CP01-04

12" · 4 Ω · 250 W · 90.9 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	36 Hz
Qts	0.611
Qes	0.7
Qms	4.8
Vas	55.8 L
Sd	510.7 cm²
Xmax	5.9 mm
Re	3.8 Ω
Bl	12.5 T·m
Mms	128 g
Pe	250 W
Sensitivity	90.9 dB

Alignment hint

EBP	51 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 164.4 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
MTX Audio RTS12-04	33.5 -2.5	0.631 +0.02	58.4 +2.6	5.8 -0.1	89.5 -1.4	close	Xmax 5.8 mm < 5.9 mm: lower excursion-limited SPL	+
Hertz Audio ES F30.5	38 +2	0.6 -0.01	60 +4.2	6 +0.1	88.6 -2.3	close		+
Focal R-300S	32.6 -3.4	0.582 -0.03	53.9 -1.9	6 +0.1	89.6 -1.3	close		+
hertz Hertz Audio ES300.5	35 -1	0.66 +0.05	48.5 -7.3	6.8 +0.9	90.8 -0.1	close		+
Kenwood W1024DB	33 -3	0.567 -0.04	51.3 -4.5	6.9 +1	91 +0.1	close		+
Scan-Speak 30W/4552-01	34 -2	0.525 -0.09	52.9 -2.9	6.6 +0.7	90.7 -0.2	close		+
Rockford Fosgate R2D4-12	34.9 -1.1	0.605 -0.01	68.8 +13	6.5 +0.6	88.9 -2	close	8 Ω vs 4 Ω: amp load changes	+
Pioneer TS-A30S4	39.2 +3.2	0.7 +0.09	56.1 +0.3	6.6 +0.7	92.1 +1.2	close		+
JBL S2-1224	32.4 -3.6	0.581 -0.03	59.7 +3.9	5.3 -0.6	89.1 -1.8	close	8 Ω vs 4 Ω: amp load changes · Xmax 5.3 mm < 5.9 mm: lower excursion-limited SPL	+
MTX Audio XT12-04	33 -3	0.56 -0.05	66 +10.2	6.5 +0.6	91.7 +0.8	close		+

Compare the closest 3 against the SBS-300F38CP01-04 →

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.