3" Aero Port - 7cm 4x 300 Watt Auto Gain Ranging - automatically

Auto Gain Ranging - automatically set to perfection

HELIX P SIX DSP Ultimate

The paper cone is guided by a durable rubber surround and is housed in a low-resonance steel basket

subwoofer grille

3" Aero Port - 7cm 4x 300 Watt Auto Gain Ranging - automaticallyMT Audio's installation accessories include a range of high quality aero ports in various sizes and lengths. These aero ports can be easily installed and used to tune your subwoofer enclosure. The funnel opening enables clean reproduction without air noise and can be installed in a short time. The aero ports can be glued in or pre drilled on the side for a fixed position. The end pieces are pluggable and should be glued in place when the centerpiece