RBass solves this by generating . It takes your fundamental low note and creates precise copies of that note at higher octaves. Your ear/brain system hears these higher harmonics and "fills in the blank," perceiving a deep, punchy low end even if the speaker isn't producing the actual sub-frequency.
knob to compensate for any volume increase, ensuring you aren't just hearing a "louder" signal. Notable Alternatives Creating phat kick drums and bass with Waves RBass plugin