
'Obsession' has the BEST lead guitar tone that I've ever heard. Michael was using a particular 50 watt top, it seems, that just had 'IT'. Listen to the live '77 stuff from the Roundhouse in London. There are 3 video's from this show, 'Lights Out', 'Let It Roll' and 'Too Hot To Handle'. Michael seems to be getting the same tone (minus all the plate reverb) that he got on 'Obsession'. Back then, I guess guy's didnt think too much about stuff, either giving up on an amp in need of repair, or just 'getting rid' of stuff due to vintage. Had Schenker continued to have gotten those late '70's era UFO tones, his solo career may have blossomed more. Gear IS VERY IMPORTANT. We know that now.
"Strangers In The Night" is awesome, but the tone was a touch more mid middy, whereas he got a brighter upper mid previously. Michael was using new '78 1987 50 watt tops on that tour, though the two TOTAL studio tracks (Mother Mary and This Kids) seem to have a slightly different tone.