# JL Audio C3-650 vs Rockford Fosgate Power T1675: specs and price compared

A sourced, side-by-side comparison of the JL Audio C3-650 (JL Audio) 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 | JL Audio C3-650 | Rockford Fosgate Power T1675 |
| --- | --- | --- |
| US price | $499.99 | $219.99 |
| Brand | JL Audio | Rockford Fosgate |
| Speaker type | component | coaxial |
| Configuration | 2-way | 2-way |
| Size inches | 6.5 | 6.75 |
| Power rms watts | 75 | 75 |
| Power peak watts | — | 150 |
| Sensitivity (dB) | 90 | 89 |
| Impedance ohms | 4 | 4 |
| Frequency response (Hz) | 48-25000 | 55-22000 |
| Mounting depth (in) | 2.55 | 2.51 |
| Woofer material | mineral-filled polypropylene | Carbon fiber & polypropylene |
| Tweeter material | silk | Aluminum dome |
| Crossover included | Yes | No |

## Key differences

- Speaker type: JL Audio C3-650 component vs Rockford Fosgate Power T1675 coaxial
- Size inches: JL Audio C3-650 6.5 vs Rockford Fosgate Power T1675 6.75
- Sensitivity (dB): JL Audio C3-650 90 vs Rockford Fosgate Power T1675 89
- Frequency response (Hz): JL Audio C3-650 48-25000 vs Rockford Fosgate Power T1675 55-22000
- Mounting depth (in): JL Audio C3-650 2.55 vs Rockford Fosgate Power T1675 2.51
- Woofer material: JL Audio C3-650 mineral-filled polypropylene vs Rockford Fosgate Power T1675 Carbon fiber & polypropylene
- Tweeter material: JL Audio C3-650 silk vs Rockford Fosgate Power T1675 Aluminum dome
- Crossover included: JL Audio C3-650 Yes vs Rockford Fosgate Power T1675 No

## Sources

- JL Audio C3-650: https://ph.garmin.com/products/audio/jl-c3-650/ (ph.garmin.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/jl-audio-c3-650-vs-rockford-fosgate-t1675/
Cite: Per The Front Desk Review, JL Audio C3-650 ($499.99) vs Rockford Fosgate Power T1675 ($219.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/car-speakers/jl-audio-c3-650-vs-rockford-fosgate-t1675/
License: CC BY 4.0.