Audiotechnology FLEXUNITS 12 D 77 25 10 KAP
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 19 Hz |
| Qts | 0.25 |
| Qes | 0.262 |
| Qms | 5.5 |
| Vas | 340 L |
| Sd | 506 cm² |
| Xmax | 8.6 mm |
| Re | 5.74 Ω |
| Bl | 14 T·m |
| Mms | 75 g |
| Pe | 250 W |
| Sensitivity | 91.3 dB |
Alignment hint
| EBP | 73 · 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
| Driver | Fs (Hz) | Qts | Vas (L) | Xmax (mm) | Sens (dB) | Fit | Notes | Compare |
|---|---|---|---|---|---|---|---|---|
| Audiotechnology 12D772510KAP | 19 = | 0.257 +0.01 | 340 = | 8.6 = | 93.1 +1.8 | close | + | |
| Focal 12V 726 | 19 = | 0.267 +0.02 | 340 = | 9 +0.4 | 92 +0.7 | close | 150 W vs 250 W: lower power handling | + |
| JBL 122A | 17 -2 | 0.232 -0.02 | 339.8 -0.2 | 6.9 -1.7 | 91.9 +0.6 | close | 100 W vs 250 W: lower power handling · Xmax 6.9 mm < 8.6 mm: lower excursion-limited SPL | + |
| JBL 128-H | 20 +1 | 0.241 -0.01 | 280.3 -59.7 | 7.9 -0.7 | 93 +1.7 | close | 150 W vs 250 W: lower power handling · Xmax 7.9 mm < 8.6 mm: lower excursion-limited SPL | + |
| Audiotechnology FLEXUNIT 12B775210KAP Custom | 19 = | 0.382 +0.13 | 340 = | 8.6 = | 91.2 -0.1 | usable | + | |
| Audiotechnology FLEXUNIT 12D775210KAP Custom | 19 = | 0.388 +0.14 | 340 = | 8.6 = | 91.1 -0.2 | usable | + | |
| Visaton WS300 | 22 +3 | 0.321 +0.07 | 340 = | 8 -0.6 | 92.5 +1.2 | usable | 150 W vs 250 W: lower power handling · Xmax 8 mm < 8.6 mm: lower excursion-limited SPL | + |
| Eminence W1238R | 21.5 +2.5 | 0.252 = | 236.6 -103.4 | 8.2 -0.4 | 93.6 +2.3 | usable | 150 W vs 250 W: lower power handling · Xmax 8.2 mm < 8.6 mm: lower excursion-limited SPL | + |
| Scan-Speak 32W/8878T11 | 21 +2 | 0.261 +0.01 | 235 -105 | 7.5 -1.1 | 92.1 +0.8 | usable | Xmax 7.5 mm < 8.6 mm: lower excursion-limited SPL | + |
| Fostex SLE 30 W | 22 +3 | 0.302 +0.05 | 293 -47 | 9.5 +0.9 | 92.8 +1.5 | usable | 160 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)
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