Ciare 18.00 NDW1
Thiele-Small parameters
| Nominal size | 18" |
|---|---|
| Impedance | 8 Ω |
| Fs | 29.2 Hz |
| Qts | 0.312 |
| Qes | 0.32 |
| Qms | 12.36 |
| Vas | 296.4 L |
| Sd | 1152.1 cm² |
| Xmax | 7 mm |
| Re | 5.7 Ω |
| Bl | 24.7 T·m |
| Mms | 186.6 g |
| Pe | 500 W |
| Sensitivity | 97.1 dB |
Alignment hint
| EBP | 91 · flexible |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 71.7 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 |
|---|---|---|---|---|---|---|---|---|
| BMS 18N840V2 | 28.5 -0.7 | 0.314 = | 288 -8.4 | 10 +3 | 97.1 = | close | + | |
| PD PD 18BR40 | 30 +0.8 | 0.32 +0.01 | 309 +12.6 | 9.3 +2.3 | 98 +0.9 | close | + | |
| Precision Devices PD 18BR40 | 30 +0.8 | 0.32 +0.01 | 309 +12.6 | 9.3 +2.3 | 98 +0.9 | close | + | |
| 18 Sound 18LW1400 | 31 +1.8 | 0.29 -0.02 | 297 +0.6 | 9 +2 | 98 +0.9 | close | + | |
| BMS 18S450 | 29 -0.2 | 0.31 = | 281 -15.4 | 12 +5 | 95 -2.1 | close | + | |
| RCF LF18X401 | 30 +0.8 | 0.3 -0.01 | 274 -22.4 | 12 +5 | 97.5 +0.4 | close | + | |
| RCF LF18Y402 | 30 +0.8 | 0.3 -0.01 | 274 -22.4 | 12 +5 | 97.5 +0.4 | close | + | |
| RCF LF 18X401 | 30 +0.8 | 0.298 -0.01 | 274 -22.4 | 11.4 +4.4 | 97.5 +0.4 | close | + | |
| Precision Devices PD186 | 27 -2.2 | 0.312 = | 353 +56.6 | 8 +1 | 97 -0.1 | close | 16 Ω vs 8 Ω: amp load changes | + |
| Mivoc AWX 184 | 28 -1.2 | 0.313 = | 315 +18.6 | 6 -1 | 98.8 +1.7 | close | 4 Ω vs 8 Ω: amp load changes · Xmax 6 mm < 7 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 18.00 NDW1 →
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.