It may also depend upon the type of music you're listening to on CD v. vinyl. I have had an identical experience regarding soundstage and imaging when comparing 70s LPs to remastered CD versions. Try a newer LP or try comparing an LP and CD that were pressed from the same master.
Need more soundstage depth with Spacedeck and Ono
I've just gotten back into analog with a Nottingham Spacedeck with Spacearm and a Benz L2 cartridge.I'm using a Pass Labs Aleph Ono phono stage and Pass Aleph 2 monoblocks with a Pass Aleph P preamp with Cardas Golden Reference balanced and RCA cables and Audio Physics Virgo II speakers. Everything is broken in now and the turntable has been set up properly by my Nottingham dealer and I've readjusted the loading and capacitance with no luck in the soundstage department. The soundstage is wide but very forward and shallow. The sound and detail is fine but doesn't compete with my CD player. I'm using a Naim CD5 with the HiCap and the sound simply blows away the analog. The pinpoint imaging and three-dimensional deep soundstage along with the disappearing act with the speakers is phenomenal. Even my Magnum Dynalab 101 tuner makes a huge difference in a deep soundstage over the analog. With the analog the speakers no longer disappear and it leaves me wondering what is leading to this. Any advice would help alot. Thanks