Air Space: 2.4 Cubic Feet (per sub). We will contact you, should there be a problem or delay with your order. Damaged Merchandise All packages are inspected for damage prior to leaving our warehouse. Damaged merchandise must be replaced with the same model only.Remote, bass knob, wires, etc. We will not process the return if any of these conditions are not followed. Return merchandise that is lost or damaged in transit is solely the shipper's responsibility. Complete selection of woofer-specific, large ported and sealed boxes.