Sundown Audio
Sundown Audio SA-12 v.2 D2
$419.99Cheaper
Best Car Subwoofers · head-to-head
Sundown Audio SA-12 v.2 D2 vs Hertz Mille Pro MPS 300 S4
A sourced, side-by-side comparison. Sundown Audio SA-12 v.2 D2 is cheaper at $419.99. Every spec and price links to its source.
Hertz
Hertz Mille Pro MPS 300 S4
$680
Which is better: the Sundown Audio SA-12 v.2 D2 or Hertz Mille Pro MPS 300 S4?
On the specs we track, they're closely matched. The Sundown Audio SA-12 v.2 D2 is the cheaper at $419.99.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Sundown Audio SA-12 v.2 D2 | Hertz Mille Pro MPS 300 S4 |
|---|---|---|
| US price | $419.99 | $680 |
| Brand | Sundown Audio | Hertz |
| Released | — | — |
| Cone size (in) | 12 | 12 |
| Rms power watts | 1250 | 500 |
| Peak power watts | 2500 | 1000 |
| Impedance ohms | 2 | 4 |
| Voice coil config | dual-voice-coil | single-voice-coil |
| Sensitivity (dB) | 86.59 | 85 |
| Frequency response (Hz) | — | 25-400 |
| Enclosure type | component-driver | component-driver |
| Mounting depth (in) | 7.5 | 3.46 |
| Xmax (mm) | 19 | — |
| Weight (lb) | — | 14.64 |
Sources — Sundown Audio SA-12 v.2 D2: sundownaudio.com (verified 2026-07-11). Hertz Mille Pro MPS 300 S4: hertz-audio.com (verified 2026-07-11).
What's the difference between the Sundown Audio SA-12 v.2 D2 and Hertz Mille Pro MPS 300 S4?
Where the two actually differ on the specs we track (6 of 11). Matching specs are omitted.
- Rms power watts: Sundown Audio SA-12 v.2 D2 1250 vs Hertz Mille Pro MPS 300 S4 500
- Peak power watts: Sundown Audio SA-12 v.2 D2 2500 vs Hertz Mille Pro MPS 300 S4 1000
- Impedance ohms: Sundown Audio SA-12 v.2 D2 2 vs Hertz Mille Pro MPS 300 S4 4
- Voice coil config: Sundown Audio SA-12 v.2 D2 dual-voice-coil vs Hertz Mille Pro MPS 300 S4 single-voice-coil
- Sensitivity (dB): Sundown Audio SA-12 v.2 D2 86.59 vs Hertz Mille Pro MPS 300 S4 85
- Mounting depth (in): Sundown Audio SA-12 v.2 D2 7.5 vs Hertz Mille Pro MPS 300 S4 3.46