I bought a Marshall HW straight cab a while ago and pulled it out to use with my Jubilee and I noticed it's very thin and boxy sounding compared to my Bogner and old 68 slant and Glaswerks 2x12. This cab comes with the 30 watt green backs which are not fully broken in yet. So I'm wondering is it the cab or the speakers? I would like to hear from some HW owners that have the 30 watt GB's in them. I have some Lynchbacks on the way and would like to load them into the Marshall unless the cab is just a thin sounding cab.