Make sure you've actually listened to some records on some system before you spend the bucks (ask where to "start" so I'm making a guess the whole thing is new to you--if not, just disregard this post).
Where to start with vinyl
In your opinion what TT and cartridge would I need to buy to experience a noticable improvement over a Resolution Audio Opus 21 or similar quality ($3-4K new) CD player. Rest of system includes Rogue M-150 amps, Martin Logan Summits and tara air 1 interconnects and speaker cable.