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The Wolfram Audio Cu series are high performance, cost effective, competition grade subwoofers that stand out from the crowd in every aspect. The Cu series features a double stacked 180oz ferrite motor, 2.5" high temperature copper voice coil, and an advanced cooling design.
Cu is the chemical symbol for Copper - an inexpensive, yet precious metal. In other words, the Cu series is a fantastic option for daily bangin' without breaking the bank!