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SB Acoustics SB42FHCL75-6

15" · 8 Ω · 300 W · 93.9 dB · datasheet ↗

Thiele-Small parameters

Nominal size15"
Impedance8 Ω
Fs18.4 Hz
Qts0.307
Qes0.32
Qms7.4
Vas462 L
Sd850 cm²
Xmax11.5 mm
Re4.6 Ω
Bl16.5 T·m
Mms164 g
Pe300 W
Sensitivity93.9 dB

Alignment hint

EBP57 · flexible
Sealed Vb (Qtc ≈ 0.71)≈ 107.3 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

DriverFs (Hz)QtsVas (L)Xmax (mm)Sens (dB)FitNotesCompare
Monacor SP-380P v200020 +1.60.337 +0.03450 -129.4 -2.192.5 -1.4close200 W vs 300 W: lower power handling · Xmax 9.4 mm < 11.5 mm: lower excursion-limited SPL+
Orion Audio 2NT 1518 -0.40.248 -0.06419.1 -42.910.5 -192.5 -1.4usableXmax 10.5 mm < 11.5 mm: lower excursion-limited SPL+
Audiotechnology FLEXUNIT 15 F 102 25 10 KAP22 +3.60.29 -0.02410 -528.6 -2.993.5 -0.4usableXmax 8.6 mm < 11.5 mm: lower excursion-limited SPL+
JBL 2235H20 +1.60.252 -0.05458.7 -3.38.4 -3.194.4 +0.5usableXmax 8.4 mm < 11.5 mm: lower excursion-limited SPL+
Audiotechnology 15F1022510KAP22 +3.60.288 -0.02410 -528.5 -394.9 +1usable200 W vs 300 W: lower power handling · Xmax 8.5 mm < 11.5 mm: lower excursion-limited SPL+
Oxygen ALIUM 38018 -0.40.3 -0.01322 -1407.9 -3.693.3 -0.6usable4 Ω vs 8 Ω: amp load changes · 200 W vs 300 W: lower power handling · Xmax 7.9 mm < 11.5 mm: lower excursion-limited SPL+
TC Sounds TC2000 vp18 -0.40.323 +0.02267 -19514 +2.592.5 -1.4usable4 Ω vs 8 Ω: amp load changes+
Altec 927-8A22.9 +4.50.278 -0.03496.1 +34.18.3 -3.295.1 +1.2usable200 W vs 300 W: lower power handling · Xmax 8.3 mm < 11.5 mm: lower excursion-limited SPL+
Fostex FW 40520 +1.60.336 +0.03595 +1337 -4.593.9 =usable150 W vs 300 W: lower power handling · Xmax 7 mm < 11.5 mm: lower excursion-limited SPL+
AE Speakers TD15H21 +2.60.254 -0.05467 +57 -4.594.9 +1usableXmax 7 mm < 11.5 mm: lower excursion-limited SPL+

Compare the closest 3 against the SB42FHCL75-6 →

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.