Fluxmag 1201-LB
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 28.9 Hz |
| Qts | 0.163 |
| Qes | 0.17 |
| Qms | 4.1 |
| Vas | 196.2 L |
| Sd | 531 cm² |
| Xmax | 4 mm |
| Re | 5.13 Ω |
| Bl | 18.3 T·m |
| Mms | 61 g |
| Pe | 100 W |
| Sensitivity | 98.4 dB |
Alignment hint
| EBP | 170 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 11 L |
EBP > 100: favours a ported (bass-reflex) 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 |
|---|---|---|---|---|---|---|---|---|
| Audax PR33S66 | 30 +1.1 | 0.169 +0.01 | 214.4 +18.2 | 3.8 -0.2 | 98.2 -0.2 | close | Xmax 3.8 mm < 4 mm: lower excursion-limited SPL | + |
| EMS B12 | 31 +2.1 | 0.168 +0.01 | 227 +30.8 | 4.4 +0.4 | 98.8 +0.4 | close | + | |
| EMS B12 MKII | 30 +1.1 | 0.174 +0.01 | 227 +30.8 | 4.6 +0.6 | 98.3 -0.1 | close | + | |
| Altec 414-8E | 30.3 +1.4 | 0.195 +0.03 | 224 +27.8 | 4 = | 97.9 -0.5 | close | + | |
| Altec 414-8C | 30.2 +1.3 | 0.204 +0.04 | 230.2 +34 | 4 = | 97.5 -0.9 | usable | + | |
| Audax PR330M0 v2014 | 26 -2.9 | 0.203 +0.04 | 208 +11.8 | 4 = | 95.6 -2.8 | usable | + | |
| Beyma 12XA30/ND | 35 +6.1 | 0.21 +0.05 | 172 -24.2 | 4 = | 97.2 -1.2 | usable | + | |
| Audax PR33S100 vp1 | 36.8 +7.9 | 0.164 = | 124.3 -71.9 | 3.8 -0.2 | 98.9 +0.5 | usable | Xmax 3.8 mm < 4 mm: lower excursion-limited SPL | + |
| Monacor SP-330PAX | 33 +4.1 | 0.238 +0.07 | 190 -6.2 | 4.5 +0.5 | 97.4 -1 | usable | + | |
| RCF L 12P24 | 31 +2.1 | 0.145 -0.02 | 205 +8.8 | 2 -2 | 99 +0.6 | usable | 75 W vs 100 W: lower power handling · Xmax 2 mm < 4 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 1201-LB →
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.