I think #3. The turntable should be able to take a nice cartridge like the Ortofon Red or Blue, Audio Technica AT-120 or better yet Nagaoka MP-110 or 150. The nice thing is that you can take the new cartridge with you when you upgrade your turntable.
No, you don't put new arms on inexpensive integrated turntables.
Yes the tube box would make a difference, but the NAD is more than up to the quality of the turntable. I would upgrade the turntable before moving to a new phono stage.
No, you don't put new arms on inexpensive integrated turntables.
Yes the tube box would make a difference, but the NAD is more than up to the quality of the turntable. I would upgrade the turntable before moving to a new phono stage.