NHT 1259
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 4 Ω |
| Fs | 19 Hz |
| Qts | 0.461 |
| Qes | 0.56 |
| Qms | 2.6 |
| Vas | 190 L |
| Sd | 507 cm² |
| Xmax | 12 mm |
| Re | 3.4 Ω |
| Bl | 9.8 T·m |
| Mms | 133.1 g |
| Pe | 200 W |
| Sensitivity | 89.4 dB |
Alignment hint
| EBP | 34 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 140.5 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 |
|---|---|---|---|---|---|---|---|---|
| Peerless XXLS308 SWR 51 | 21.5 +2.5 | 0.448 -0.01 | 162.5 -27.5 | 11.5 -0.5 | 88.7 -0.7 | close | 8 Ω vs 4 Ω: amp load changes · Xmax 11.5 mm < 12 mm: lower excursion-limited SPL | + |
| NHT MAD1259 | 20.1 +1.1 | 0.576 +0.11 | 195.1 +5.1 | 13 +1 | 89.3 -0.1 | close | + | |
| SB Acoustics SB34NRX75-6 vp fx | 22.9 +3.9 | 0.496 +0.03 | 181.3 -8.7 | 11 -1 | 90.6 +1.2 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 11 mm < 12 mm: lower excursion-limited SPL | + |
| AE Speakers SBP12-8 | 23.6 +4.6 | 0.479 +0.02 | 160 -30 | 14 +2 | 89.5 +0.1 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| Ground Zero GZTW 12MK2 vp | 22.5 +3.5 | 0.484 +0.02 | 148.6 -41.4 | 14.7 +2.7 | 89.9 +0.5 | usable | 8 Ω vs 4 Ω: amp load changes | + |
| SB Acoustics SB34SWNRX-S75-6 | 18 -1 | 0.334 -0.13 | 183 -7 | 11 -1 | 89.3 -0.1 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 11 mm < 12 mm: lower excursion-limited SPL | + |
| Peerless 830952 | 19.1 +0.1 | 0.365 -0.1 | 159 -31 | 13 +1 | 91.5 +2.1 | usable | + | |
| SB Acoustics SB34NRX75-6 | 19 = | 0.397 -0.06 | 260 +70 | 11 -1 | 91 +1.6 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 11 mm < 12 mm: lower excursion-limited SPL | + |
| SB Acoustics SB34NRX75-6 vp | 22.2 +3.2 | 0.444 -0.02 | 240 +50 | 11 -1 | 92 +2.6 | usable | 8 Ω vs 4 Ω: amp load changes · Xmax 11 mm < 12 mm: lower excursion-limited SPL | + |
| Morel UW 1258 | 21 +2 | 0.431 -0.03 | 138.4 -51.6 | 12.5 +0.5 | 86.3 -3.1 | usable | 8 Ω vs 4 Ω: amp load changes | + |
Compare the closest 3 against the 1259 →
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.