Shim,

Not certain about the weight but the Pa3x must be the smallest footprint professional KBA on the market, very narrow, you can carry it under one arm, not for long mind you, the T4 unless your a big boy, you will struggle under one arm and the Audya it needs two to carry it, " TRUSS ME"

The Audya has got to be the heaviest KB ever produced, IMO, perhaps the Roland G70 next, all this data is on the internet somewhere, Shim.

Tony