ATC SB100-375SC

15" · 8 Ω · 100 W · 98 dB · datasheet ↗

Thiele-Small parameters

Nominal size	15"
Impedance	8 Ω
Fs	30 Hz
Qts	0.322
Qes	0.38
Qms	2.1
Vas	380 L
Sd	980 cm²
Xmax	4.2 mm
Re	5.4 Ω
Bl	16.3 T·m
Mms	99.7 g
Pe	100 W
Sensitivity	98 dB

Alignment hint

EBP	79 · flexible
Sealed Vb (Qtc ≈ 0.71)	≈ 99.4 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
Monacor SP-385PAX	30 =	0.285 -0.04	365 -15	4.5 +0.3	98 =	close		+
Gauss 4583A v1	29 -1	0.338 +0.02	433 +53	4 -0.2	97.8 -0.2	close	Xmax 4 mm < 4.2 mm: lower excursion-limited SPL	+
Altec 4156-8A	29 -1	0.28 -0.04	353.7 -26.3	4.3 +0.1	98 =	close		+
Davis 40RCA15 vp2	26.6 -3.4	0.309 -0.01	410 +30	5 +0.8	98.6 +0.6	close		+
Great Plains Audio 515-8C GPA	27.8 -2.2	0.299 -0.02	422.5 +42.5	4.7 +0.5	97.6 -0.4	close	75 W vs 100 W: lower power handling	+
Sonido SCW-400	34 +4	0.339 +0.02	357 -23	5 +0.8	98.6 +0.6	close		+
Altec 515-8C vp jpvoit	34.2 +4.2	0.337 +0.02	414.9 +34.9	4.1 -0.1	98.6 +0.6	close	75 W vs 100 W: lower power handling · Xmax 4.1 mm < 4.2 mm: lower excursion-limited SPL	+
Usher Audio 15HM Studio	27 -3	0.28 -0.04	385 +5	5.9 +1.7	98 =	close		+
Davis 39GPA15	26.2 -3.8	0.338 +0.02	384 +4	7.5 +3.3	97 -1	close		+
Eminence LEGEND CB15	34 +4	0.339 +0.02	336 -44	4.8 +0.6	98.8 +0.8	close		+

Compare the closest 3 against the SB100-375SC →

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.