I have heard both in different systems (andf used to own a GTA and now own a RavenAC3). Both great tables but personally I wouldnt bother fiddling about between the two. The amadeus is a lovely deck with a very fluid, relaxed sound so unless you are looking for a different presentation then stick with it.
Or go to the next level in turntables (e.g. The new AMG) or spend money on a really good phono preamp.
The phono should cost as much as the whole tt/arm/cart imo, it makes a HUGE difference. Diminishing returns is not strictly true either. Just last week i comprehensively tested a £2000 phono with a £9000 one and the difference was enormous, arguably a bigger difference between two turntables at similar prices.
Or go to the next level in turntables (e.g. The new AMG) or spend money on a really good phono preamp.
The phono should cost as much as the whole tt/arm/cart imo, it makes a HUGE difference. Diminishing returns is not strictly true either. Just last week i comprehensively tested a £2000 phono with a £9000 one and the difference was enormous, arguably a bigger difference between two turntables at similar prices.