The GLADEN RCore 1|1200 is a Class D mono car amplifier designed to integrate subwoofers with either factory or aftermarket head units. This single-channel system delivers flexible power output depending on the load, providing 400 W at 4 Ohm, 650 W at 2 Ohm, and up to 1120 W when running at 1 Ohm, ensuring stable performance even at very low impedances. To refine the low-frequency response, the amplifier features a low-pass filter adjustable from 40 to 220 Hz and a subsonic filter between 20 and 50 Hz, both with a steep 24 dB/octave slope. You can further tune the sound using the bass boost adjustment with -6, 0, or +6 dB settings. The unit supports both high-level inputs (0.4–10 V) and low-level inputs (0.2–5 V), and it can turn on automatically via a high-level BTL signal. Measuring 285 × 150 × 52 mm, the compact chassis houses analogue controls for easy tuning and is protected by an external 80 A fuse. It is built to handle modern vehicle electronics, maintaining operation at 7.5 V for up to 3 seconds to support Start/Stop systems. For those who want more control over their bass from the driver's seat, the RTC.2 remote controller is available as a separate accessory.