Logitech Z650: This speaker kit includes a 6.5-inch subwoofer and two 2.0-inch full frequency satellite speakers, providing clear and engaging sound effects. It also adopts the latest digital signal processing technology, which can present a more realistic sound performance. In addition, it also has wireless surround sound function, making it convenient for users to enjoy a more realistic home theater experience.

JVC HA-ET1000: This speaker kit includes an 8-inch subwoofer and two 3-inch full frequency satellite speakers, providing excellent sound performance. It adopts JVC's sound technology, which can present clearer and more moving sound performance. In addition, it also has a detachable singing arm and remote control, making it convenient for users to operate according to their own needs.

Infinity AR-7000: This speaker kit includes a 6.5-inch subwoofer and two 4-inch full frequency satellite speakers, providing excellent sound performance. It adopts Infinity's professional sound technology, which can present clearer, flatter, and wider sound field performance. In addition, it also has a detachable singing arm and remote control, making it convenient for users to operate according to their own needs.

Overall, the above 2.1 bass speaker kits are well-known brands and products in their respective fields, with high-quality sound effects and stable performance. You can choose the product that suits you according to your needs and budget.