JL Audio
JL Audio 12W7AE-3
$1449.99
Best Car Subwoofers · head-to-head
JL Audio 12W7AE-3 vs Hertz Mille Pro MPS 300 S4
A sourced, side-by-side comparison. Hertz Mille Pro MPS 300 S4 is cheaper at $680. Every spec and price links to its source.
Hertz
Hertz Mille Pro MPS 300 S4
$680Cheaper
Which is better: the JL Audio 12W7AE-3 or Hertz Mille Pro MPS 300 S4?
The Hertz Mille Pro MPS 300 S4 wins 1 of the 1 specs we compare head to head; the other wins 0. The Hertz Mille Pro MPS 300 S4 is the cheaper at $680. The Hertz Mille Pro MPS 300 S4 both leads on specs and costs less — the straightforward pick.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | JL Audio 12W7AE-3 | Hertz Mille Pro MPS 300 S4 |
|---|---|---|
| US price | $1449.99 | $680 |
| Brand | JL Audio | Hertz |
| Released | — | — |
| Cone size (in) | 12 | 12 |
| Rms power watts | 1000 | 500 |
| Peak power watts | — | 1000 |
| Impedance ohms | 3 | 4 |
| Voice coil config | single-voice-coil | single-voice-coil |
| Sensitivity (dB) | 86.2 | 85 |
| Frequency response (Hz) | — | 25-400 |
| Enclosure type | component-driver | component-driver |
| Mounting depth (in) | 9.5 | 3.46 |
| Xmax (mm) | 29 | — |
| Weight (lb) | 45 | 14.64 |
Sources — JL Audio 12W7AE-3: classiccarstereos.com (verified 2026-07-11). Hertz Mille Pro MPS 300 S4: hertz-audio.com (verified 2026-07-11).
What's the difference between the JL Audio 12W7AE-3 and Hertz Mille Pro MPS 300 S4?
Where the two actually differ on the specs we track (5 of 11). Matching specs are omitted.
- Rms power watts: JL Audio 12W7AE-3 1000 vs Hertz Mille Pro MPS 300 S4 500
- Impedance ohms: JL Audio 12W7AE-3 3 vs Hertz Mille Pro MPS 300 S4 4
- Sensitivity (dB): JL Audio 12W7AE-3 86.2 vs Hertz Mille Pro MPS 300 S4 85
- Mounting depth (in): JL Audio 12W7AE-3 9.5 vs Hertz Mille Pro MPS 300 S4 3.46
- Weight (lb): JL Audio 12W7AE-3 45 vs Hertz Mille Pro MPS 300 S4 14.64