About the Douk Audio G100 Bass Shaker Amplifier for Tactile Transducer/Subwoofer 100W
From the product page on doukaudio.com.
Built for Real Tactile Bass: Purpose-built bass shaker amplifier for tactile transducers. Designed to drive Douk Audio BS-1/BS-2 and similar bass shakers, the G100 provides dedicated low-frequency power for adding more physical feedback to gaming chairs, home theater seats, sofas, and sim racing rigs.
Flexible BTL/PBTL Output Modes: Use BTL mode to power two bass shakers with 50W×2 output for wider tactile coverage, or switch to PBTL mode for 100W×1 mono output to drive one shaker with stronger, more focused impact. Also supports passive subwoofers for more flexible setups.
Adjustable Low-Pass Filter: The 50–300Hz adjustable low-pass filter lets you control the bass range sent to your shaker, helping focus on deep effects like engines, explosions, impacts, and cinematic bass while reducing unwanted higher-frequency vibration for cleaner, tighter feedback.