My man has an ESX/MPC 2kXL combo and he loves his ESX
Yeah,that's a great addition and while I can't totally answer your question,I know that the Sampletrak converters are 16 bit and it's such a gritty machine because there's no interpolation of samples or whatever that means...haha
The 303/505 has 20 bit ad/da and cd quality 44.1 khz compared to the 32
khz for the Sampletrak and yes the converters play a huge role in the grittiness of sound.
On the real,the sp's are in such high demand because they're so fun to use and very versatile
