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.
sgunther
While I am not familiar with the sound of the Resolution Audio player I have heard many players in that range. I think beginning with a Rega P5 ($1600 w cartridge) or something of that caliber or better is the sensible place to begin- these players truly give you good dynamic range with low noise, open sound and good detail and rendering of timbre and are a nice step up from tables below a thousand dollars generally speaking. You can spend more but one of the best items I ever owned was a Rega P25 after beginning with a P3 2000. Looking back on it I was very happy with that upgrade for the difference in cash.
Sgunther, just to add to my earlier post, if you need to skimp anywhere, I'd skimp on the cartridge... You could get very good results using a Benz Glider or Ace (low output preferred) if you don't want to spring for the Reference 3. That would get you going and I think you'd be very pleased.
Wrong... High output cartridges are much easier to deal with. Its really a tradeoff. Yes you might get very slightly more detail with a low output, because of the fewer windings on the coil, however rf, hum, noisy power, etc. can and usually does swamp that detail.
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).
I would go with one of the VPI turntables or the SME 20/2, which is what I have, assuming you could spring for the $11K. I would also recommend one of the SME or Graham arms--I have the Graham Phantom. And my experience with very low output MC cartridges is similar to that of the posters above. Anything below about 0.5 mV and a lot of problems can arise.