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The Rockford Fosgate R2SD4-12 is perfect if you want serious bass but do not have a lot of space to work with. Its shallow mount design keeps the motor compact so you can install it in tight areas without needing a huge box. Even with its slim profile, it still delivers solid, controlled low end that brings your music to life without taking over your entire trunk.
This sub gives you flexibility with dual 4 ohm voice coils that make system matching way easier. You can wire it in parallel for a 2 ohm load if you want more power or in series for an 8 ohm load if your setup calls for it. It is built to work with different amplifier configurations so you can dial in your system exactly how you want it.


Even though it is compact, this sub is tuned to deliver strong low frequency output that stays clean and controlled. You get tight bass that does not fall apart when the volume goes up. Whether you are listening to hip hop, EDM, or rock, it keeps your sound full and balanced without distortion taking over.
The R2SD4-12 uses a reinforced spring post connection system that makes installation simple and secure. It supports up to 12 gauge wire along with pin connectors and banana plugs so you can hook it up the way you prefer. It also works great in both sealed and ported enclosures, giving you the choice between tighter accuracy or louder, more efficient bass depending on your build style.

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This subwoofer is so easy to install. It also delivers some great bass and is more than enough from what I have expected from this sub.
Highly recommended for small spaces. Its a 250 Watt sub and I’ve connected on a 500 watt amp so I don’t push the volume too much but the loudness is still there. I just wondered how can a shallow sub like this one can be able to deliver that much volume
Great sub. Less footprint with this shallow sub. But even with how it is, it still sounds pretty great. Great bang for the buck