いま出てるEpiphone Masterbuilt J45 ECやSlash J45はショップ通販の仕様にSolidと書いてあるから単板なのかな

BodyTop：Solid Sitka Spruce
BodySide&Back：Solid Mahogany
Neck：Mahogany
Neck Profile：Rounded C
Nut Width：1.69" / 43mm
Fingerboard：Indian Laurel
Scale：24.72" / 628mm
Frets：20/Medium Jumbo
Bridge：Reverse Belly, Indian Laurel
Pickup：Fishman Sonicore
Preamp：Fishman Presys II
Controls：Fishman Presys II with Volume, Bass and Treble controls, Phase Switch, and a built-in tuner with LED display
Case：Softcase