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Audiotechnology FLEXUNITS 12 D 77 25 10 KAP

12" · 8 Ω · 250 W · 91.3 dB · datasheet ↗

Thiele-Small parameters

Nominal size12"
Impedance8 Ω
Fs19 Hz
Qts0.25
Qes0.262
Qms5.5
Vas340 L
Sd506 cm²
Xmax8.6 mm
Re5.74 Ω
Bl14 T·m
Mms75 g
Pe250 W
Sensitivity91.3 dB

Alignment hint

EBP73 · flexible
Sealed Vb (Qtc ≈ 0.71)≈ 48.6 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
Audiotechnology 12D772510KAP19 =0.257 +0.01340 =8.6 =93.1 +1.8close+
Focal 12V 72619 =0.267 +0.02340 =9 +0.492 +0.7close150 W vs 250 W: lower power handling+
JBL 122A17 -20.232 -0.02339.8 -0.26.9 -1.791.9 +0.6close100 W vs 250 W: lower power handling · Xmax 6.9 mm < 8.6 mm: lower excursion-limited SPL+
JBL 128-H20 +10.241 -0.01280.3 -59.77.9 -0.793 +1.7close150 W vs 250 W: lower power handling · Xmax 7.9 mm < 8.6 mm: lower excursion-limited SPL+
Audiotechnology FLEXUNIT 12B775210KAP Custom19 =0.382 +0.13340 =8.6 =91.2 -0.1usable+
Audiotechnology FLEXUNIT 12D775210KAP Custom19 =0.388 +0.14340 =8.6 =91.1 -0.2usable+
Visaton WS30022 +30.321 +0.07340 =8 -0.692.5 +1.2usable150 W vs 250 W: lower power handling · Xmax 8 mm < 8.6 mm: lower excursion-limited SPL+
Eminence W1238R21.5 +2.50.252 =236.6 -103.48.2 -0.493.6 +2.3usable150 W vs 250 W: lower power handling · Xmax 8.2 mm < 8.6 mm: lower excursion-limited SPL+
Scan-Speak 32W/8878T1121 +20.261 +0.01235 -1057.5 -1.192.1 +0.8usableXmax 7.5 mm < 8.6 mm: lower excursion-limited SPL+
Fostex SLE 30 W22 +30.302 +0.05293 -479.5 +0.992.8 +1.5usable160 W vs 250 W: lower power handling+

Compare the closest 3 against the FLEXUNITS 12 D 77 25 10 KAP →

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.