Monacor SP-46A/500BS
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 8 Ω |
| Fs | 36 Hz |
| Qts | 0.485 |
| Qes | 0.54 |
| Qms | 4.75 |
| Vas | 250 L |
| Sd | 1163 cm² |
| Xmax | 6 mm |
| Re | 6 Ω |
| Bl | 19.3 T·m |
| Mms | 148.2 g |
| Pe | 500 W |
| Sensitivity | 96.6 dB |
Alignment hint
| EBP | 67 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 222.1 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 |
|---|---|---|---|---|---|---|---|---|
| MC Kenzie C18.500BS | 37 +1 | 0.484 = | 252 +2 | 6.5 +0.5 | 96.4 -0.2 | close | + | |
| Beyma 18LX60V2 | 35 -1 | 0.485 = | 236.5 -13.5 | 8 +2 | 97 +0.4 | close | + | |
| P.Audio P180/2242 | 37 +1 | 0.48 -0.01 | 231.72 -18.28 | 7 +1 | 95.5 -1.1 | close | + | |
| Beyma 18"LX60V2/S | 35 -1 | 0.48 -0.01 | 236 -14 | 8 +2 | 98 +1.4 | close | + | |
| Beyma SM118/N | 36 = | 0.492 +0.01 | 300 +50 | 5.5 -0.5 | 97.2 +0.6 | close | Xmax 5.5 mm < 6 mm: lower excursion-limited SPL | + |
| Turbosound TS-18SW700/8A | 35 -1 | 0.433 -0.05 | 250 = | 7.5 +1.5 | 97.7 +1.1 | close | + | |
| SB Audience 18SW800 | 33 -3 | 0.456 -0.03 | 258.1 +8.1 | 9.3 +3.3 | 96.8 +0.2 | close | + | |
| Wharfedale D592 | 35 -1 | 0.547 +0.06 | 251 +1 | 6 = | 94.6 -2 | close | 16 Ω vs 8 Ω: amp load changes | + |
| Selenium 18SW1P | 37 +1 | 0.442 -0.04 | 232 -18 | 8.7 +2.7 | 97.7 +1.1 | close | + | |
| Beyma 118Nd/W | 36 = | 0.398 -0.09 | 249 -1 | 7 +1 | 97.7 +1.1 | close | + |
Compare the closest 3 against the SP-46A/500BS →
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.