Which cartridge do you use with the vpi classic?

Check out the Benz LPS....you'll need to contact VPI for the proper counterweight, however, its what Harry uses.

I use a dynavector xx2 Mk2 with a premium maxxed out k&k phono stage.
Sounds really good.

I've heard it with an AT OC9. Didn't hear any weaknesses. VPI Classic and the OC9 made a very good combination.

I started with a Classic 1, Phenomena II phono stage and Dynavector 20x2 cartridge. Great setup, but I wanted a little more lower frequencies. Upgraded the phono stage to a Avid Pulsus. Nice upgrade, lower frequencies and lower mid really came alive. I then went to the Classic 3. Noise floor dissapeared. First thing you notice is the BASS, more bass, tighter, then everything seems more musical, all frequencies. Sounds like you upgraded the cartridge, all the frequencies are effected. Also the highs seem less harsh. Recently I went to a XX2MKII and it really out shines the 20X2. Needs about 50 hours at least to break in. I am loading at 100 ohms and VTF at 1.87 grams. Azimuth adjusted to minimize crosstalk with a multi meter. I really like the XX2MKII. It just does everything better than the 20x2. Definitely worth the upgrade. On your classic 1 if you can swing it, and you want to go Dynavector, my vote goes for the XX2MKII.

Benz LPS. Can't imagine anything better.