Electro-Voice EVM-12S PRO LINE
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 70 Hz |
| Qts | 0.248 |
| Qes | 0.257 |
| Qms | 7.02 |
| Vas | 56.3 L |
| Sd | 503.3 cm² |
| Xmax | 2.7 mm |
| Re | 5.2 Ω |
| Bl | 17 T·m |
| Mms | 32.6 g |
| Pe | 200 W |
| Sensitivity | 102.6 dB |
Alignment hint
| EBP | 272 · ported |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 7.9 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 |
|---|---|---|---|---|---|---|---|---|
| Altec ER-12S | 70 = | 0.251 = | 56.6 +0.3 | 2.7 = | 102.6 = | close | + | |
| PD PD 123ER | 60.5 -9.5 | 0.25 = | 51 -5.3 | 2.5 -0.2 | 99.9 -2.7 | close | Xmax 2.5 mm < 2.7 mm: lower excursion-limited SPL | + |
| Precision Devices PD 123ER | 60.5 -9.5 | 0.25 = | 51 -5.3 | 2.5 -0.2 | 99.9 -2.7 | close | Xmax 2.5 mm < 2.7 mm: lower excursion-limited SPL | + |
| RCF L 12L750 | 62 -8 | 0.271 +0.02 | 52 -4.3 | 3.5 +0.8 | 100.2 -2.4 | usable | + | |
| Peavey 1201-8 v1993 | 59.7 -10.3 | 0.269 +0.02 | 59 +2.7 | 2.6 -0.1 | 99.7 -2.9 | usable | Xmax 2.6 mm < 2.7 mm: lower excursion-limited SPL | + |
| RCF 12 CX251 | 60 -10 | 0.266 +0.02 | 62 +5.7 | 3.7 +1 | 100.6 -2 | usable | + | |
| RCF CX 12N251 | 60 -10 | 0.266 +0.02 | 62 +5.7 | 3.7 +1 | 100.6 -2 | usable | + | |
| JBL 2020 H | 60 -10 | 0.228 -0.02 | 65 +8.7 | 4 +1.3 | 101.9 -0.7 | usable | + | |
| JBL 2020H | 60 -10 | 0.228 -0.02 | 65 +8.7 | 4 +1.3 | 101.9 -0.7 | usable | + | |
| JBL M121-8 | 60 -10 | 0.235 -0.01 | 70.8 +14.5 | 3.6 +0.9 | 101.7 -0.9 | usable | + |
Compare the closest 3 against the EVM-12S PRO LINE →
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.