Gretsch took it's ready-to-play Energy drum set and redesigned it to give it more Gretsch features, more Gretsch sound and more Gretsch performance. Energy's shells are 7-ply poplar with 30-degree bearing edges and are equipped with 1.5mm triple flanged hoops and Remo drum heads. 
 
Mini Tom Lugs
Bass Drum Mount Plate
Double Tom Holder
Mount Brackets
Snare Throw off
Hardware with Energy branding
Redesigned BD/HH footboards
Remo Drum Heads