if you mainly enjoy human voice, instrumental music, orchestral music and light bamboo music, and the signal source is mainly CD, it is strongly recommended not to install a subwoofer regardless of whether your full-range speaker is shelf-mounted or floor-mounted. Even if it is installed, don't turn on the subwoofer to enjoy pure CD music.
although there are high, medium and low levels in music, the subwoofer just emits bass, but the more bass, the better, and it is not good to dive to 2HZ. The most important thing for a set of audio is balance, so the sound with high, medium and low balance will be more fidelity and more durable. If your home is a pair of high-quality HI-FI speakers, blindly installing a subwoofer will make the bass turbid and unclear, and it is more likely that the overall balance will be destroyed due to poor control of the crossover point, and there may be a serious standing wave due to room reasons, and your ears will be buzzing, which is really a lingering sound.