Thought the MKV is wider than any previous Mark amp.
Want to do this myself. Alas the curse of UK prices is keeping me from ordering from a dealer. There is a guy in the UK that makes headshells to order. Who can be found through the Ampmaker site, called Cabs By Chris.
I also heard a rumour that Matamp will make a headshell and a 1x12 cab for around £300. That was years ago though. I donn't know if it's still that way. UK again, sorry.
Fallen right out of love with that C90 speaker. I can't stop trying to compensate for the 1x12 sound by whacking the bass up and all the time I know it's wrong and limiting my options.
Plugging into my old 800 cab sounds divine, perfect. But I can't lug both that and a combo to gigs.