When Steve (Speedy) first showed them at Scalford they were wood finish; since then they have made one more appearance when they were black and were accompanied by black folded horn subs as opposed to tapped horns (Coleman room 2014).
The only changes have been to the amplification - I used some borrowed John Wood pp monoblocks on the bass (15", the large conical) at Scalford and an EL84 integrated on the 1.5" JBL compression driver; and had to make do with a T amp on the ribbons cos we lost an amp. Nowadays I am using a Creek 4140 on the tweeters (soon to be replaced by a Korato EL84 integrated), a Megahertz (Italian Kit amp) SE pentode amp (EL34) on the small white tractrix, a KT88 pp DIY amp on the 2" compression driver/small conical, a Rotel 60w SS on the big conical and a A&R SA 200 ss on the subs.
Jack