After a brief moment of what can only be described as utter insanity, I have decided not to sell my beloved Beomaster 8000. The Pentas can go into storage, although I shall miss their presence in the lounge.
The Pentas did expose the lack of base my Beovox 5000 flat panel speakers produce, so despite reading mixed reviews I decided to take a punt on a Beovox 'Cona' sub. It was described as in VGC, it arrived undamaged and it was indeed in fab condition...at £100, I dont think I was robbed.
With heart in hand anticipating another unwise investment I hooked it up via the BM8000, and you know what, it sounds great. It makes a very noticable and pleasant difference as it diverts some of the hard to deal with bass away from the flat panels.
So in my very uneducated opinion the 'Cona' is a success...and maybe not just for those dinky little speakers it was designed for.