Kenwood RD 30 FU 120-F
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 31.6 Hz |
| Qts | 0.879 |
| Qes | 1.17 |
| Qms | 3.53 |
| Vas | 206.3 L |
| Sd | 490.9 cm² |
| Xmax | 8 mm |
| Re | 7.29 Ω |
| Bl | 7.2 T·m |
| Mms | 41.7 g |
| Pe | 150 W |
| Sensitivity | 89.8 dB |
Alignment hint
| EBP | 27 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | Qts too high |
EBP < 50: favours a sealed (closed) 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 |
|---|---|---|---|---|---|---|---|---|
| Jamo 20325 | 32 +0.4 | 0.849 -0.03 | 163.4 -42.9 | 5 -3 | 93 +3.2 | usable | 4 Ω vs 8 Ω: amp load changes · 100 W vs 150 W: lower power handling · Xmax 5 mm < 8 mm: lower excursion-limited SPL | + |
| SB Acoustics SB34NRX75-16 | 25 -6.6 | 0.714 -0.17 | 205 -1.3 | 9.7 +1.7 | 85.6 -4.2 | usable | 16 Ω vs 8 Ω: amp load changes | + |
| Visaton W300 | 32 +0.4 | 0.549 -0.33 | 190 -16.3 | 7 -1 | 92.2 +2.4 | usable | Xmax 7 mm < 8 mm: lower excursion-limited SPL | + |
| Philips AD12672/W8 | 29 -2.6 | 0.662 -0.22 | 245 +38.7 | 6 -2 | 92.3 +2.5 | usable | 100 W vs 150 W: lower power handling · Xmax 6 mm < 8 mm: lower excursion-limited SPL | + |
| Kenford HW-1206 | 31 -0.6 | 0.8 -0.08 | 170 -36.3 | 3 -5 | 89.5 -0.3 | usable | 100 W vs 150 W: lower power handling · Xmax 3 mm < 8 mm: lower excursion-limited SPL | + |
| Sphynx SP-W310PP | 33 +1.4 | 0.618 -0.26 | 182.8 -23.5 | 5 -3 | 91 +1.2 | usable | 16 Ω vs 8 Ω: amp load changes · 100 W vs 150 W: lower power handling · Xmax 5 mm < 8 mm: lower excursion-limited SPL | + |
| STX W.30.200.8.MC | 31 -0.6 | 0.622 -0.26 | 148 -58.3 | 6.2 -1.8 | 91.3 +1.5 | usable | 100 W vs 150 W: lower power handling · Xmax 6.2 mm < 8 mm: lower excursion-limited SPL | + |
| Sphynx SP-W12 IND | 30.4 -1.2 | 0.868 -0.01 | 336.9 +130.6 | 4 -4 | 91.3 +1.5 | usable | 100 W vs 150 W: lower power handling · Xmax 4 mm < 8 mm: lower excursion-limited SPL | + |
| Sphynx SP-W12-BP | 30.4 -1.2 | 0.864 -0.02 | 336.9 +130.6 | 4 -4 | 91.3 +1.5 | usable | 100 W vs 150 W: lower power handling · Xmax 4 mm < 8 mm: lower excursion-limited SPL | + |
| EMS LB12EX_06V | 34 +2.4 | 0.722 -0.16 | 200 -6.3 | 3 -5 | 90.2 +0.4 | usable | 16 Ω vs 8 Ω: amp load changes · 40 W vs 150 W: lower power handling · Xmax 3 mm < 8 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the RD 30 FU 120-F →
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.