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McCauley 6174

18" · 8 Ω · 800 W · 95.4 dB · datasheet ↗

Thiele-Small parameters

Nominal size18"
Impedance8 Ω
Fs20 Hz
Qts0.336
Qes0.38
Qms2.9
Vas733.4 L
Sd1283.9 cm²
Xmax15.2 mm
Re5.6 Ω
Bl19.2 T·m
Mms199.5 g
Pe800 W
Sensitivity95.4 dB

Alignment hint

EBP53 · flexible
Sealed Vb (Qtc ≈ 0.71)≈ 213.9 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

DriverFs (Hz)QtsVas (L)Xmax (mm)Sens (dB)FitNotesCompare
Altec 3182 vp20.3 +0.30.343 +0.011159.7 +426.310.2 -596.5 +1.1usable180 W vs 800 W: lower power handling · Xmax 10.2 mm < 15.2 mm: lower excursion-limited SPL+
Fostex FW 50520 =0.404 +0.07860 +126.68.5 -6.794.3 -1.1usable150 W vs 800 W: lower power handling · Xmax 8.5 mm < 15.2 mm: lower excursion-limited SPL+
Altec 318218 -20.398 +0.06991.1 +257.710.7 -4.593.5 -1.9usable180 W vs 800 W: lower power handling · Xmax 10.7 mm < 15.2 mm: lower excursion-limited SPL+
AE Speakers IB18HT-4ohm18.4 -1.60.567 +0.23632.1 -101.316.7 +1.594.5 -0.9usable4 Ω vs 8 Ω: amp load changes · 500 W vs 800 W: lower power handling+
Eminence 11171221.6 +1.60.288 -0.05736.2 +2.85.8 -9.497.1 +1.7usableXmax 5.8 mm < 15.2 mm: lower excursion-limited SPL+
JBL 2245H20 =0.24 -0.1821.2 +87.88.5 -6.797.2 +1.8usable300 W vs 800 W: lower power handling · Xmax 8.5 mm < 15.2 mm: lower excursion-limited SPL+
BMS 18N86225.1 +5.10.34 =312 -421.419 +3.895 -0.4usable+
RCF L 18P200KN22.3 +2.30.265 -0.07550 -183.49 -6.296.4 +1usable350 W vs 800 W: lower power handling · Xmax 9 mm < 15.2 mm: lower excursion-limited SPL+
Stereo Integrity HT 1817 -30.383 +0.05411.9 -321.525.1 +9.992.5 -2.9usable4 Ω vs 8 Ω: amp load changes+
BMS 18N862 vp24.8 +4.80.383 +0.05345.6 -387.816.2 +194.8 -0.6usable+

Compare the closest 3 against the 6174 →

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.