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Fluxmag 1504B

15" · 8 Ω · 200 W · 97 dB · datasheet ↗

Thiele-Small parameters

Nominal size15"
Impedance8 Ω
Fs22.5 Hz
Qts0.224
Qes0.23
Qms8.04
Vas433.8 L
Sd855 cm²
Xmax7.3 mm
Re5.45 Ω
Bl19.9 T·m
Mms118.2 g
Pe200 W
Sensitivity97 dB

Alignment hint

EBP98 · flexible
Sealed Vb (Qtc ≈ 0.71)≈ 48.4 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

DriverFs (Hz)QtsVas (L)Xmax (mm)Sens (dB)FitNotesCompare
Gauss 4583F22 -0.50.197 -0.03432 -1.86.3 -197.1 +0.1closeXmax 6.3 mm < 7.3 mm: lower excursion-limited SPL+
JBL 2234H23 +0.50.222 =458.7 +24.95.1 -2.296.7 -0.3close150 W vs 200 W: lower power handling · Xmax 5.1 mm < 7.3 mm: lower excursion-limited SPL+
Scan-Speak 38WE/8582T0026 +3.50.243 +0.02423 -10.89.5 +2.297.5 +0.5close+
AE Speakers TD15H-421 -1.50.254 +0.03467 +33.27 -0.397.6 +0.6close4 Ω vs 8 Ω: amp load changes · Xmax 7 mm < 7.3 mm: lower excursion-limited SPL+
AE Speakers TD15H+ 8 Ohms22 -0.50.211 -0.01363.4 -70.47 -0.395.3 -1.7closeXmax 7 mm < 7.3 mm: lower excursion-limited SPL+
Magnat SUB 400 SUPREME21 -1.50.228 =330 -103.89.5 +2.296.7 -0.3close4 Ω vs 8 Ω: amp load changes+
Magnat OMEGA 38021.3 -1.20.247 +0.02375 -58.812 +4.796.9 -0.1close4 Ω vs 8 Ω: amp load changes+
Davis 40RCA15 vp121 -1.50.231 +0.01450 +16.25 -2.396.7 -0.3closeXmax 5 mm < 7.3 mm: lower excursion-limited SPL+
AE Speakers TD15H21 -1.50.254 +0.03467 +33.27 -0.394.9 -2.1closeXmax 7 mm < 7.3 mm: lower excursion-limited SPL+
AE Speakers TD15H-821 -1.50.254 +0.03467 +33.27 -0.394.9 -2.1closeXmax 7 mm < 7.3 mm: lower excursion-limited SPL+

Compare the closest 3 against the 1504B →

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.