Indiana Line's Basso line offers active subwoofers with exceptional acoustic capabilities. The amplifiers built into Basso subwoofers are equipped with a complete control section, allowing them to be perfectly matched to other components in the audio system and to the acoustics of the listening room.

The Basso subwoofers are suitable for home theater enthusiasts and music lovers alike. They use two Bass-Reflex ports located at the rear of the cabinet to minimize the audibility of unwanted disturbances. The very low tuning frequency prevents excessive excursion of the speaker. The speaker is placed underneath the cabinet to reinforce the bass.

The Class AB amplifier module used in Basso subwoofers is equipped with crossover frequency and gain controls, as well as a phase switch, allowing the processing parameters to be adjusted to the user's needs. The Basso 840 model shown here is capable of delivering 75W of rated power.