Peerless 831857
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 | 9 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 315SWR | 24 = | 0.433 = | 210 = | 8 -1 | 91.3 = | close | Xmax 8 mm < 9 mm: lower excursion-limited SPL | + |
| Peerless SLS315 | 24.4 +0.4 | 0.452 +0.02 | 205.2 -4.8 | 7.8 -1.2 | 91.4 +0.1 | close | 100 W vs 220 W: lower power handling · Xmax 7.8 mm < 9 mm: lower excursion-limited SPL | + |
| SB Acoustics SB34NRX75-6 vp | 22.2 -1.8 | 0.444 +0.01 | 240 +30 | 11 +2 | 92 +0.7 | close | + | |
| Davis 31ST12M | 24 = | 0.399 -0.03 | 260 +50 | 8.9 -0.1 | 91.6 +0.3 | close | 100 W vs 220 W: lower power handling · Xmax 8.9 mm < 9 mm: lower excursion-limited SPL | + |
| Davis 31ST12M v2011 | 24 = | 0.399 -0.03 | 260 +50 | 8.9 -0.1 | 91.6 +0.3 | close | 100 W vs 220 W: lower power handling · Xmax 8.9 mm < 9 mm: lower excursion-limited SPL | + |
| SB Acoustics SB34NRX75-6 vp fx | 22.9 -1.1 | 0.496 +0.06 | 181.3 -28.7 | 11 +2 | 90.6 -0.7 | close | + | |
| JL Audio 12W0-8 | 23.2 -0.8 | 0.426 -0.01 | 159.989 -50.01 | 8.636 -0.36 | 88.3 -3 | usable | 125 W vs 220 W: lower power handling · Xmax 8.636 mm < 9 mm: lower excursion-limited SPL | + |
| JBL 123A | 25 +1 | 0.49 +0.06 | 235 +25 | 7.9 -1.1 | 93.1 +1.8 | usable | 100 W vs 220 W: lower power handling · Xmax 7.9 mm < 9 mm: lower excursion-limited SPL | + |
| JBL 2213H | 25 +1 | 0.49 +0.06 | 235 +25 | 7.9 -1.1 | 93.1 +1.8 | usable | 75 W vs 220 W: lower power handling · Xmax 7.9 mm < 9 mm: lower excursion-limited SPL | + |
| Rockford Fosgate R1S4-12 | 22 -2 | 0.493 +0.06 | 197.2 -12.8 | 7 -2 | 91.5 +0.2 | usable | 4 Ω vs 8 Ω: amp load changes · Xmax 7 mm < 9 mm: lower excursion-limited SPL | + |
Compare the closest 3 against the 831857 →
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.