Reiss RS-RX12 ULTRA D2

Reiss RS-RX12 ULTRA – 12" subwoofer 1200W RMS for extreme bass builds

Reiss RS-RX12 ULTRA is a no-compromise 12-inch subwoofer developed for those who build systems where raw power, endurance and physical bass presence are the main priorities. With 1200W RMS and up to 2400W max power, this driver is engineered to handle extremely high loads without losing control – perfect for powerful street builds, SPL-inspired installations and extreme daily systems.

The RS-RX12 ULTRA is available in both D2 (2x2 Ohm) and D4 (2x4 Ohm) configurations, providing flexibility in wiring and making it easy to match with everything from high-power monoblocks to multi-amplifier setups. Regardless of version, the driver delivers a massive and hard-hitting low end with a distinct character and strong physical impact.

Built for brutal load handling

The construction is clearly focused on durability and stability under high power. The heavy-duty 3-inch voice coil is designed for high thermal resistance and long-term operation, while the large 183 mm ferrite magnet generates a strong and stable magnetic field for precise control of the heavy moving mass.

The relatively low Vas value makes the RS-RX12 ULTRA very well suited for compact enclosures, while the heavy cone assembly delivers deep, dense and powerful bass reproduction. This is a driver that prioritizes pressure, weight and endurance over speed and lightness – exactly what an ULTRA driver is meant to do.

For serious bass installations

With its solid build quality, high weight and deep motor structure, the RS-RX12 ULTRA is a subwoofer that demands respect – both during installation and operation. It is best suited for systems where the amplifier, power supply and enclosure design are on the same high level as the driver itself.

Reiss RS-RX12 ULTRA is the choice for those who want massive power handling, heavy bass response and a driver built to be pushed hard – whether you choose the D2 or D4 version.