MCM Electronics 55-2952
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 38 Hz |
| Qts | 0.338 |
| Qes | 0.385 |
| Qms | 2.8 |
| Vas | 108 L |
| Sd | 517 cm² |
| Xmax | 3.8 mm |
| Re | 7.2 Ω |
| Bl | 16.5 T·m |
| Mms | 60.9 g |
| Pe | 175 W |
| Sensitivity | 94.3 dB |
Alignment hint
| EBP | 99 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 32 L |
EBP 50-100: works in either a sealed or ported 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 PR300T4 vp série | 36 -2 | 0.349 +0.01 | 114 +6 | 4 +0.2 | 94.7 +0.4 | close | + | |
| Audax PR330M0 vp1 | 37.7 -0.3 | 0.326 -0.01 | 95.9 -12.1 | 4 +0.2 | 95 +0.7 | close | + | |
| P.Audio BM-12W | 38 = | 0.335 = | 90.27 -17.73 | 4.5 +0.7 | 92.9 -1.4 | close | 4 Ω vs 8 Ω: amp load changes | + |
| Beyma 12BR70 v2 | 35 -3 | 0.355 +0.02 | 100 -8 | 4.1 +0.3 | 93.4 -0.9 | close | 125 W vs 175 W: lower power handling | + |
| Eminence KAPPALITE 3012 LF | 37 -1 | 0.324 -0.01 | 106.7 -1.3 | 8.2 +4.4 | 95.5 +1.2 | close | + | |
| Eminence KappaLITE 3012LF | 37 -1 | 0.32 -0.02 | 106.65 -1.35 | 9.1 +5.3 | 95.5 +1.2 | close | + | |
| Audio Dynamique 320/75 | 32 -6 | 0.341 = | 116 +8 | 5 +1.2 | 93.8 -0.5 | close | + | |
| Fane SOVEREIGN PRO 12-300S | 40 +2 | 0.321 -0.02 | 101.3 -6.7 | 5.3 +1.5 | 96.5 +2.2 | close | + | |
| Beyma 12BR70 vp jp | 33.7 -4.3 | 0.365 +0.03 | 104 -4 | 4.4 +0.6 | 93.1 -1.2 | close | 125 W vs 175 W: lower power handling | + |
| DAS Audio P-12 | 42 +4 | 0.329 -0.01 | 105 -3 | 6 +2.2 | 96.5 +2.2 | close | + |
Compare the closest 3 against the 55-2952 →
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.