Mission 770S - silly or savable?

jeudi 17 mars 2016

Hi All,
My first post and I'm really seeking some guidance please.

I recently purchased a pair of old 770S speakers that are certainly in need of some TLC although I got them at a really check price at £33. I can remember how good 770 speakers were when they first appeared back in the late 70s - I was incredible jealous of a couple of friends who had these as I couldn't afford them at time.

It appears they have had some 'reworking'; certainly a change in bass driver from the orginal and the crossover wiring looks 'suspect'. I can happily refurbish the woodwork and I quite competent with electronics (although I dont have a circuit diagram for the crossover/terminal) but before I spend out any money are they actually worth working on?