Hi there, I have recently bought a 59 Bassman LTD, the circuit being one of my favourites (either Bassman 5F6-A or a Marshall Bluesbreaker would take the podium as my favourite amplifier designs). Having said that the stock speakers (Jensen P10R) leave a lot to be desired. They sound far harsher than I remember a Bassman sounding, and quite stiff. I'm sure part of the problem is because the speakers are not 'broken in' yet, but I can imagine there may be a few easy upgrades for the cab. In fact I remember playing through a 59 Bassman Reissue (the USA-made reissues from in 90s) in a bar regularly and they sounded great. They supposedly had Eminence 1028K 'Blue Frame' speakers in them, and coincidentally I have a local musician close to where I live selling a couple of those 90s amps for real cheap. I was thinking of buying one, swapping my Jensens with the Eminence blue frames and sell the amp (I won't be losing much money, if at all). A couple of questions: Am I going to see an upgrade by swapping these speakers? Would this be a simple case of swapping the amps with no further work required, or do I have to worry about impedance, wattage etc.? Basically, do I need a qualified technician to do this for me or is this a simple DIY job? Many thanks in advance!