18 Sound 12MB700
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 16 Ω |
| Fs | 46 Hz |
| Qts | 0.25 |
| Qes | 0.26 |
| Qms | 7.27 |
| Vas | 100 L |
| Sd | 531 cm² |
| Xmax | 4.5 mm |
| Re | 9.5 Ω |
| Bl | 22.1 T·m |
| Mms | 46 g |
| Pe | 450 W |
| Sensitivity | 100.5 dB |
Alignment hint
| EBP | 177 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 14.3 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 |
|---|---|---|---|---|---|---|---|---|
| Beyma SM112 | 45 -1 | 0.262 +0.01 | 101 +1 | 4.8 +0.3 | 98.3 -2.2 | close | 8 Ω vs 16 Ω: amp load changes · 250 W vs 450 W: lower power handling | + |
| B&C 12 PL 32 | 49 +3 | 0.249 = | 97 -3 | 3.5 -1 | 100.2 -0.3 | close | 8 Ω vs 16 Ω: amp load changes · 350 W vs 450 W: lower power handling · Xmax 3.5 mm < 4.5 mm: lower excursion-limited SPL | + |
| B&C 12 PL 32 8 Ohms | 49 +3 | 0.249 = | 97 -3 | 3.5 -1 | 100.2 -0.3 | close | 8 Ω vs 16 Ω: amp load changes · 350 W vs 450 W: lower power handling · Xmax 3.5 mm < 4.5 mm: lower excursion-limited SPL | + |
| RCF L 12G301 | 48 +2 | 0.219 -0.03 | 97 -3 | 5.6 +1.1 | 100.1 -0.4 | close | 8 Ω vs 16 Ω: amp load changes | + |
| SB Audience 12MW300 | 43 -3 | 0.264 +0.01 | 104 +4 | 5.6 +1.1 | 98.7 -1.8 | close | 8 Ω vs 16 Ω: amp load changes · 300 W vs 450 W: lower power handling | + |
| Beyma 12CXA400Nd | 45 -1 | 0.268 +0.02 | 102.2 +2.2 | 6 +1.5 | 98 -2.5 | close | 8 Ω vs 16 Ω: amp load changes | + |
| Beyma 12CXA400Nd v2018 | 45 -1 | 0.251 = | 88.5 -11.5 | 5.5 +1 | 97.7 -2.8 | close | 8 Ω vs 16 Ω: amp load changes | + |
| Precision Devices PD912 | 41.29 -4.71 | 0.25 = | 97.87 -2.13 | 5 +0.5 | 97 -3.5 | close | 8 Ω vs 16 Ω: amp load changes · 300 W vs 450 W: lower power handling | + |
| Fane STUDIO 12L | 49 +3 | 0.241 -0.01 | 120.9 +20.9 | 4.3 -0.2 | 101.2 +0.7 | close | 8 Ω vs 16 Ω: amp load changes · 200 W vs 450 W: lower power handling · Xmax 4.3 mm < 4.5 mm: lower excursion-limited SPL | + |
| B&C 12 HPL 76 | 49 +3 | 0.236 -0.01 | 91 -9 | 4 -0.5 | 99.6 -0.9 | close | 8 Ω vs 16 Ω: amp load changes · 350 W vs 450 W: lower power handling · Xmax 4 mm < 4.5 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 12MB700 →
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.