Monoblocks are specialized amplifiers that usually power subwoofers. They are typically more powerful and efficient than traditional amplifiers, making them ideal for use with subwoofers. Monoblocks also typically have a built-in low-pass filter, which allows you to control the cutoff frequency of your subwoofer.
Tuning a monoblock is relatively simple, but there are a few things you need to keep in mind. First, monoblocks usually have a gain control knob that allows you to adjust the amount of amplification. Start by turning the gain knob all the way down, then slowly turn it up until you reach the desired level of amplification.
Next, you'll need to adjust the low-pass filter knob to control the cutoff frequency of your subwoofer. Start by setting the knob to its highest setting, then slowly turn it down until you hear the bass start to roll off. Once you've found the perfect setting, leave it there and enjoy your new custom sound system!