Peerless 315SWR
Thiele-Small parameters
| Nominal size | 12" |
|---|---|
| Impedance | 8 Ω |
| Fs | 24 Hz |
| Qts | 0.433 |
| Qes | 0.49 |
| Qms | 3.72 |
| Vas | 210 L |
| Sd | 520 cm² |
| Xmax | 8 mm |
| Re | 5.5 Ω |
| Bl | 11.6 T·m |
| Mms | 79.4 g |
| Pe | 220 W |
| Sensitivity | 91.3 dB |
Alignment hint
| EBP | 49 · sealed |
|---|---|
| Sealed Vb (Qtc ≈ 0.71) | ≈ 126 L |
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 |
|---|---|---|---|---|---|---|---|---|
| Peerless 831857 | 24 = | 0.433 = | 210 = | 9 +1 | 91.3 = | close | + | |
| Peerless SLS315 | 24.4 +0.4 | 0.452 +0.02 | 205.2 -4.8 | 7.8 -0.2 | 91.4 +0.1 | close | 100 W vs 220 W: lower power handling · Xmax 7.8 mm < 8 mm: lower excursion-limited SPL | + |
| SB Acoustics SB34NRX75-6 vp | 22.2 -1.8 | 0.444 +0.01 | 240 +30 | 11 +3 | 92 +0.7 | close | + | |
| Davis 31ST12M | 24 = | 0.399 -0.03 | 260 +50 | 8.9 +0.9 | 91.6 +0.3 | close | 100 W vs 220 W: lower power handling | + |
| Davis 31ST12M v2011 | 24 = | 0.399 -0.03 | 260 +50 | 8.9 +0.9 | 91.6 +0.3 | close | 100 W vs 220 W: lower power handling | + |
| JBL 123A | 25 +1 | 0.49 +0.06 | 235 +25 | 7.9 -0.1 | 93.1 +1.8 | close | 100 W vs 220 W: lower power handling · Xmax 7.9 mm < 8 mm: lower excursion-limited SPL | + |
| JBL 2213H | 25 +1 | 0.49 +0.06 | 235 +25 | 7.9 -0.1 | 93.1 +1.8 | close | 75 W vs 220 W: lower power handling · Xmax 7.9 mm < 8 mm: lower excursion-limited SPL | + |
| Rockford Fosgate R1S4-12 | 22 -2 | 0.493 +0.06 | 197.2 -12.8 | 7 -1 | 91.5 +0.2 | close | 4 Ω vs 8 Ω: amp load changes · Xmax 7 mm < 8 mm: lower excursion-limited SPL | + |
| SB Acoustics SB34NRX75-6 vp fx | 22.9 -1.1 | 0.496 +0.06 | 181.3 -28.7 | 11 +3 | 90.6 -0.7 | close | + | |
| Audax 180040A | 22.4 -1.6 | 0.392 -0.04 | 239.6 +29.6 | 8 = | 88.7 -2.6 | close | 16 Ω vs 8 Ω: amp load changes · 150 W vs 220 W: lower power handling | + |
Compare the closest 3 against the 315SWR →
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.