Thanks for the comments chaps.
The left field suggestion of active Diamonds and a CCA would be best for sound but not portable to other rooms/outside.
I did look at the Marshall but have not found a seller here in Thailand yet (edit...suddenly appeared all over the place!), making post and import tax a deal breaker, plus I may take it on outings from time to time so mains only would be a bummer.
The JBLs are available at a 50% price hike but offers come around quite often so I'll go for 2plus or 3 depending on the next offer.
The Ankers seem too cheap to be in the running but I could be way off there, again not available here.
Not only but also, are the AKG K450s still the inexpensive, closed, on ear can of choice? (For travelling.......quietly!).