Scan-Speak 30W/4558T00

12" · 4 Ω · 150 W · 91.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size	12"
Impedance	4 Ω
Fs	17 Hz
Qts	0.318
Qes	0.34
Qms	5.01
Vas	197 L
Sd	466 cm²
Xmax	10.9 mm
Re	2.6 Ω
Bl	10.5 T·m
Mms	135.4 g
Pe	150 W
Sensitivity	91.4 dB

Alignment hint

EBP	50 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 49.9 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
Scan-Speak 30W/4558T00SGERW	17 =	0.318 =	197 =	12.5 +1.6	91.4 =	close		+
Scan-Speak 32W/4878T00 v2015	18 +1	0.315 =	203.9 +6.9	11.1 +0.2	91.7 +0.3	close		+
Scan-Speak 32W/4878T00	18 +1	0.315 =	207.1 +10.1	11 +0.1	91.7 +0.3	close		+
SB Acoustics SB34SWNRX-S75-6	18 +1	0.334 +0.02	183 -14	11 +0.1	89.3 -2.1	close	8 Ω vs 4 Ω: amp load changes	+
SB Acoustics SB34SWNRX-S75-6 v2012	19 +2	0.318 =	164 -33	9.9 -1	89.7 -1.7	close	8 Ω vs 4 Ω: amp load changes · Xmax 9.9 mm < 10.9 mm: lower excursion-limited SPL	+
Accuton AUTOSOM	19.4 +2.4	0.344 +0.03	169 -28	12.5 +1.6	92.2 +0.8	close		+
Peerless 830952	19.1 +2.1	0.365 +0.05	159 -38	13 +2.1	91.5 +0.1	usable		+
Peerless XXLS-835017	19.4 +2.4	0.344 +0.03	169 -28	8.9 -2	92.2 +0.8	usable	Xmax 8.9 mm < 10.9 mm: lower excursion-limited SPL	+
Morel TICW 1258FT	19 +2	0.347 +0.03	170 -27	10.5 -0.4	87.8 -3.6	usable	8 Ω vs 4 Ω: amp load changes · Xmax 10.5 mm < 10.9 mm: lower excursion-limited SPL	+
Image Dynamics IDMAX 12D4V3	20 +3	0.336 +0.02	165 -32	12.3 +1.4	88.4 -3	usable	8 Ω vs 4 Ω: amp load changes	+

Compare the closest 3 against the 30W/4558T00 →

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.