UP-526XTSAT- CDT Audio UP-526XT SAT StageFront UpStage Systems for Image Enhancement Systems UpStage: 500XT UpStage StageFront Blending Module Tweeters: DRT-26 1 inch Modular Tweeter System # Model: UP-526xtSAT StageFront Technology Includes all 3 modular tweeters (pairs), Silk-Aluminum-Titanium (see DRT26sat for tweeter kit details)