The Tsw3004D4 is designed to take the current Champion Series name to the next level with performance to wake the neighbourhood. With a lightweight/high rigidity cone design, duallayer hybrid surround, massive powerful motor assembly, iconic red dual spider design, 115oz double stacked magnet and enclosed basket structure, this new ChampionSeries PRO subwoofer not only looks amazing but will make you the envy of your mates! Match with Pioneer's powerful GMD Series amplifiers for an impressive in (and out of) car experience! Features Rigid Cone Construction Combining a large rigid centre cap and lightweight highrigidity cone structure improves output performance and reduces loss. Improved dual layer (elastic polymer & fibre) hybrid surround provides a lighter and more durable surround than traditional rubber compounds. Please note that bulky deliveries over 5kg and in a few areas where it is not possible to redirect to the post office, the parcel may be held at the local courier depot instead. Where possible, our warehouse will try and use recycled cartons for our deliveries, just as safe and sturdy as a new carton but more friendly to the environment. Opened and Used items are subject to approval depending on the condition of the unit and packaging. Any product returned with damage to the product, packaging, or removal of any bar code or manufacturer's label will be rejected and returned at the customer's cost. Return requests for commercial quantities must be approved casebycase and may be subject to additional conditions. Goods should be received at the warehouse within 2 weeks from the Approved return authorisation unless previously arranged.