The Sundown U Series is our premier “standard suspension” woofer series. The all-new U v.2 improves on the already incredible performance of its predecessor.

We start with a double-stacked / 9.44” wide Y35 grade ferrite magnet system (3/4” wider than the v.1) coupled to a one-piece, bumped T-Yoke and a 0.6” thick top-plate. Just as with our other high-end subwoofers we also add a very thick (5mm thickness) aluminum shorting ring inside the magnets to reduce static inductance and level out inductance over stroke. The v.2 adds a pole-cap aluminum shorting ring which doubles as a heat-sink and airflow guide. The U v.2 series motor also features a 0.6” long pole-extension to keep the coil under control at high levels of excursion.

Black Aluminum 3” voice coil former for superior heat dissipation
High Temperature Round-Wire ALU voice coil with high-temp black adhesive
Double stitched surround
Heavy duty cast baskets – all new, custom-tooled
Spring loaded terminals accept up to 8 gauge
Stitched-on double-XL tinsel leads
Solid pole with vent channels and aluminum shorting ring cap
Rear drilled gap-venting
Innovative high-velocity cast aluminum vented frame spacer ring
Magnet ID shorting ring
Top-Plate Cooling Channels
Cast Aluminum surround bolt-on rings
Optimized for small ported or bandpass enclosures