One for 1800 Two for 3500 ▪︎ The subwoofers are sealed type with a 10-inch front-firing driver and a passive down-firing woofer to support low frequencies down to 30 Hz (and possibly lower depending on room size and adding a second subwoofer). Thus, it is suitable for both movies and music. ● The subwoofer is ideal for small to medium-sized rooms. ▪︎ The subwoofer has three DSP (Digital Signal Processing) settings for different modes: Music, Movie, and Impact, which adds stronger amplification more suitable for some types of music and movies. ▪︎ The subwoofers are, praise be to God, very clean and have no scratches or other marks, in addition to being heavy (13 kilograms each), elegant, and a well-known and expected product from the British brand Monitor Audio.