# Alpine R2-S65 vs Rockford Fosgate Power T1675: specs and price compared

A sourced, side-by-side comparison of the Alpine R2-S65 (Alpine) and Rockford Fosgate Power T1675 (Rockford Fosgate) among car speakers. Rockford Fosgate Power T1675 is the cheaper of the two at $219.99.

## Side by side

| 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 |

## Key differences

- 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

## Sources

- Alpine R2-S65: https://www.alpine-usa.com/product/r-series-speakers-r2s65 (alpine-usa.com, verified 2026-07-13)
- Rockford Fosgate Power T1675: https://rockfordfosgate.com/products/details/t1675/ (rockfordfosgate.com, verified 2026-07-13)

Canonical: https://frontdeskreview.com/gear/car-speakers/alpine-r2-s65-vs-rockford-fosgate-t1675/
Cite: Per The Front Desk Review, Alpine R2-S65 ($329.95) vs Rockford Fosgate Power T1675 ($219.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/car-speakers/alpine-r2-s65-vs-rockford-fosgate-t1675/
License: CC BY 4.0.