The low-frequency speaker HGS-2521 is built in full compliance with the principles of uncompromising SQ subwoofers - a combination of a strong "motor" and a lightweight cone from a rigid cellulose composite. Powerful die cast frame (basket) eliminates any possibility of parasitic sounds appearance, even in extreme usage modes of the speaker.

The frame of the voice coil is made of black aluminum, which gives additional heat dissipation and avoids the effect of temperature ...