Hi everybody I am presently using a Dartzeel cht8550 amp with the playback design mps3 and Ascendo system F speakers Audience au24e cabling all around I was contemplating on changing the amp to a pre power of cat jl 2 mk2 and renassance pre can any body help me to decide will it be a move in the right direction in my persuance of better sound or will there be only a marginal change