SoundQubed HDS 2.2 12" Series SubwooferThe Heavy Duty Street 2 Series 600W Subwoofer improves on its predecessor in terms of build, sound quality, heat dispersion, and frequency response. The 8, 10, 12, or 15 inch models are available with dual 2 or 4 ohm voice coil. Note: Because of its smaller form factor, the 6. 5 inch version specifications vary from the rest of the series. Power handling of the 6. 5 inch HDS206 is 350W RMS and 1000 peak. See the specifications tab for full details.