Beyma SM112/N
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 38 Hz |
| Qts | 0.27 |
| Qes | 0.28 |
| Qms | 7.2 |
| Vas | 138 L |
| Sd | 550 cm² |
| Xmax | 7.3 mm |
| Re | 6.5 Ω |
| Bl | 17.3 T·m |
| Mms | 53.9 g |
| Pe | 400 W |
| Sensitivity | 97.2 dB |
Alignment hint
| EBP | 136 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 23.6 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 |
|---|---|---|---|---|---|---|---|---|
| Dayton Audio APOLLO 12N | 38 = | 0.261 -0.01 | 128.1 -9.9 | 6.8 -0.5 | 96.4 -0.8 | close | Xmax 6.8 mm < 7.3 mm: lower excursion-limited SPL | + |
| AE Speakers TD12M | 38.1 +0.1 | 0.25 -0.02 | 140 +2 | 6 -1.3 | 97.3 +0.1 | close | Xmax 6 mm < 7.3 mm: lower excursion-limited SPL | + |
| Beyma 12LW30/N | 38 = | 0.287 +0.02 | 109 -29 | 7 -0.3 | 96.2 -1 | close | Xmax 7 mm < 7.3 mm: lower excursion-limited SPL | + |
| Beyma SM112/N v2021 | 40 +2 | 0.298 +0.03 | 117 -21 | 7 -0.3 | 96.9 -0.3 | close | Xmax 7 mm < 7.3 mm: lower excursion-limited SPL | + |
| McCauley B1240 | 38 = | 0.286 +0.02 | 110 -28 | 6.5 -0.8 | 96.3 -0.9 | close | Xmax 6.5 mm < 7.3 mm: lower excursion-limited SPL | + |
| AE Speakers TD12X | 33.9 -4.1 | 0.284 +0.01 | 159.4 +21.4 | 7 -0.3 | 95.4 -1.8 | close | Xmax 7 mm < 7.3 mm: lower excursion-limited SPL | + |
| Eminence KAPPALITE 3012 LF-4 | 36.4 -1.6 | 0.308 +0.04 | 107.4 -30.6 | 8.1 +0.8 | 97.2 = | usable | 4 Ω vs 8 Ω: amp load changes | + |
| Beyma SM112-N2 | 40 +2 | 0.298 +0.03 | 117.3 -20.7 | 5.9 -1.4 | 96.9 -0.3 | usable | 250 W vs 400 W: lower power handling · Xmax 5.9 mm < 7.3 mm: lower excursion-limited SPL | + |
| PHL Audio 4530 | 37 -1 | 0.314 +0.04 | 124 -14 | 6 -1.3 | 96.3 -0.9 | usable | 300 W vs 400 W: lower power handling · Xmax 6 mm < 7.3 mm: lower excursion-limited SPL | + |
| RCF L 12P400K | 34 -4 | 0.241 -0.03 | 130 -8 | 6 -1.3 | 96.3 -0.9 | usable | 200 W vs 400 W: lower power handling · Xmax 6 mm < 7.3 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the SM112/N →
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.