HELIX IK S8 Packaging unit:Single professionelle Integration in das Fahrzeug Frequency response 40 Hz professionelle Integration in das Fahrzeug 4 mm Installation depth 79 As every millimetre of depth counts in flat designs ✓ Chassis with particularly low installation depth optimized for compact and very flat enclosure designs✓ 2 x 2 Ohm dual voice coil for flexible system configurations✓ Magnet system with threaded hole on the rear enables screwing to the rear wall of the enclosure to stabilize and reduce enclosure vibrations✓ Extremely torsion resistant sandwichpaper cone✓ Long stroke rubber surround for maximum mechanical resilience✓ Robust magnet cover with HELIX lettering to protect the magnet✓ Enclosure connection terminal