Mark IIA questions

[janek]

Hello! Nice to be here ...I`ve checked 20 pages and haven`t found nothing about Mark IIA.I have opportunity to buy this amp-100 watt (no 60/100 switch) , eq , No loop , only one jack with description preamp out , pwr amp in and slave out on the bottom.....It isn`t MarkIIb so i suppose it is Mark IIa...It has not original Classic Lead 80 speaker ...What are your experiences with this model? What about effect loop/send-return possibilities? I expect big , sustained warm clean/crunchy sound nice working with Fulltones, good comps and other effects...