ProX XS-SP2X231813W Universal ATA Dual Speaker Flight Case for 2x RCF NX12-SMA SpeakerProX XS SP2X231713W Universal ATA Dual Speaker Flight Case for 2x RCF NX12 SMA Speakers and similar sizes 23x17x13 in. This Universal Pro Speaker case is designed to protect your speakers. It features a 3 8" laminated plywood with a hard shell and internal impact resistant padding, ensuring the best protection for your speakers during transit or storage. This universal case fits many brands of speakers, with interior dimensions of 23" H x 17" D x 13"L