Update...
I bought the TBX but when it arrived it was more or less dead, back it went and the response was that the CPU had fallen out.
Ok... so shit happens sometimes.
Got it back again, powered up fine sounded great, very good clone.
However when playing fast basslines with medium to full velocity on the notes I could hear clicking, much like when there is too sharp of an attack or release.
Ok, sent it back again... getting tired now.
Recieved email today that they could not pin down why the clicking was occuring and that they may have to scrap the 303 clone project if they cant sort it out soon enough
Apparently its not just occuring on the one unit, my unit.
I was offered the unit back with clicks for 50% discount on the price?
I thought about it, a great 303 clone for ?300 Hmmmm.... naa, the clicks are too much of a put off.
I turned it down and now await a full refund.
303 less again
I think i'll just hold out for the vague potential opportunity of getting the real deal and having it modified.