Alpine
Alpine R2-S65
$329.95
Released 2022
Best Car Speakers · head-to-head
Alpine R2-S65 vs Rockford Fosgate Power T1675
A sourced, side-by-side comparison. Rockford Fosgate Power T1675 is cheaper at $219.99. Every spec and price links to its source.
Rockford Fosgate
Rockford Fosgate Power T1675
$219.99Cheaper
Which is better: the Alpine R2-S65 or Rockford Fosgate Power T1675?
On the specs we track, they're closely matched. The Rockford Fosgate Power T1675 is the cheaper at $219.99.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Alpine R2-S65 | Rockford Fosgate Power T1675 |
|---|---|---|
| US price | $329.95 | $219.99 |
| Brand | Alpine | Rockford Fosgate |
| Released | 2022 | — |
| Speaker type | coaxial | coaxial |
| Configuration | 2-way | 2-way |
| Size inches | 6.5 | 6.75 |
| Power rms watts | 100 | 75 |
| Power peak watts | 300 | 150 |
| Sensitivity (dB) | 88 | 89 |
| Impedance ohms | 4 | 4 |
| Frequency response (Hz) | 65-40000 | 55-22000 |
| Mounting depth (in) | — | 2.51 |
| Woofer material | glass-fiber | Carbon fiber & polypropylene |
| Tweeter material | magnesium | Aluminum dome |
| Crossover included | No | No |
Sources — Alpine R2-S65: alpine-usa.com (verified 2026-07-13). Rockford Fosgate Power T1675: rockfordfosgate.com (verified 2026-07-13).
What's the difference between the Alpine R2-S65 and Rockford Fosgate Power T1675?
Where the two actually differ on the specs we track (7 of 12). Matching specs are omitted.
- Size inches: Alpine R2-S65 6.5 vs Rockford Fosgate Power T1675 6.75
- Power rms watts: Alpine R2-S65 100 vs Rockford Fosgate Power T1675 75
- Power peak watts: Alpine R2-S65 300 vs Rockford Fosgate Power T1675 150
- Sensitivity (dB): Alpine R2-S65 88 vs Rockford Fosgate Power T1675 89
- Frequency response (Hz): Alpine R2-S65 65-40000 vs Rockford Fosgate Power T1675 55-22000
- Woofer material: Alpine R2-S65 glass-fiber vs Rockford Fosgate Power T1675 Carbon fiber & polypropylene
- Tweeter material: Alpine R2-S65 magnesium vs Rockford Fosgate Power T1675 Aluminum dome