Gabriel Gold vs Marigo vs NBS

I got a pair of used GG Revelation 2 XLR ICs didn't sound remotely like what's being raved here. They sound way too warm. I lost details, soundstage, bass articulation, etc. The female vocal sounds burred. Everything just doesn't sound right compared to my NBS Master and Marigo Audio Labs 8.8.

Does GG requires very very long break-in, or something I missed?

My setup has Wadia (preamp) + Llano A200 (amp)/Kora Galaxy Ref(amp) + NBS Professional speaker cables + Granite Audio digital coax + Vienna Acoustics Mahler speakers.