NHT MAD1259
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 20.1 Hz |
| Qts | 0.576 |
| Qes | 0.663 |
| Qms | 4.413 |
| Vas | 195.1 L |
| Sd | 493 cm² |
| Xmax | 13 mm |
| Re | 3.52 Ω |
| Bl | 8.6 T·m |
| Mms | 109.2 g |
| Pe | 200 W |
| Sensitivity | 89.3 dB |
Alignment hint
| EBP | 30 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 384.8 L |
EBP < 50: favours a sealed (closed) 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 |
|---|---|---|---|---|---|---|---|---|
| NHT 1259 | 19 -1.1 | 0.461 -0.11 | 190 -5.1 | 12 -1 | 89.4 +0.1 | close | Xmax 12 mm < 13 mm: lower excursion-limited SPL | + |
| SB Acoustics SB34NRX75-6 vp fx | 22.9 +2.8 | 0.496 -0.08 | 181.3 -13.8 | 11 -2 | 90.6 +1.3 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 11 mm < 13 mm: lower excursion-limited SPL | + |
| AE Speakers IB12HT-4 | 16.8 -3.3 | 0.642 +0.07 | 179.5 -15.6 | 18.5 +5.5 | 87.1 -2.2 | usable | + | |
| AE Speakers SBP12-8 | 23.6 +3.5 | 0.479 -0.1 | 160 -35.1 | 14 +1 | 89.5 +0.2 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| Ground Zero GZTW 12MK2 vp | 22.5 +2.4 | 0.484 -0.09 | 148.6 -46.5 | 14.7 +1.7 | 89.9 +0.6 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| Peerless XXLS308 SWR 51 | 21.5 +1.4 | 0.448 -0.13 | 162.5 -32.6 | 11.5 -1.5 | 88.7 -0.6 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 11.5 mm < 13 mm: lower excursion-limited SPL | + |
| AE Speakers IB12HT-8 | 16.8 -3.3 | 0.642 +0.07 | 179.5 -15.6 | 16.5 +3.5 | 84.2 -5.1 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| AE Speakers IB12AU-4 | 24 +3.9 | 0.511 -0.06 | 160 -35.1 | 15.9 +2.9 | 92.4 +3.1 | usable | + | |
| Rockford Fosgate R1S4-12 | 22 +1.9 | 0.493 -0.08 | 197.2 +2.1 | 7 -6 | 91.5 +2.2 | usable | Xmax 7 mm < 13 mm: lower excursion-limited SPL | + |
| JL Audio 12W1-4 | 22.3 +2.2 | 0.487 -0.09 | 176.214 -18.89 | 7.874 -5.13 | 87.6 -1.7 | usable | 125 W vs 200 W: lower power handling · Xmax 7.874 mm < 13 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the MAD1259 →
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.