Asmodeus

Hello guys, i'm a new one on this board.
I'm searching for some infos (and possibly for some material) about one of the most obscure dark bands on earth: asmodeus.
I'm NOT referring to the black metal band or the psychobilly one, which surfaced in late '90s...the only thing i know about them is that they were in activity before 1992 and that one of their songs, perished and forgotten, got covered on an EP by a swedish death metal band in the eraly nineties...the band is House of Usher and the EP title is "Battle of Spectrum" and was released in 1992.
Has anyone heard about them?
Thanks.