Electrosac dual-woofer dual tower speaker system a treat for deep bass with beats listeners who enjoy clarity. I want melodious and clear sound with heavy bass. Most people I have melodious and clear sound with heavy bass. Electrosac ES-6633 imagine listening to music late at night, in total silence, at a very low volume of music, still being able to catch every beat, perfect lows, perfect mids and perfect highs. Imagine feeling the wave of lower heavy bass at that time. This is a dream of every music lover and ES-6633 fulfils this dream. Upper bass, lower bass is boosted for the feel of real bass. Listen to music all day long without even feeling a hint of fatigue in the ears. Enjoy a detailed sound with a rich sound stage that you would just not get enough of it. Soothing and melodious sound of this speaker system, the emphasis on clarity and softness of vocals makes it perfect for listening to music for long duration. Bass technology: bass reflex, side firing interface support: Bluetooth, USB, FM, AUX, eco-mic important things to consider while enjoying ES-8866 ES-8866 is already boosted in the lower bass region. Excess bass is harmful for the longevity of any subwoofer. If you like listening to excessive bass music, listen up to a medium volume.