I have VPI Classic/XV-1s combo for almost a year now. I think the combination improved significantly with addition of peripheral ring clamp, upgrade Valhalla wire. Currently my Classic is at my dealler as I decided to add SDS. I tried plugging my Classic into a true-online double conversion computer UPS unit and it improved the performance quite significantly but the unit is too noisy so I am getting SDS instead. I think that would be cheaper and easy way to improve the system if you have not already done so.
If you have to change cartridge, I would also consider My Sonic. I heard it in the same system as XV-1s and tonally it sounded similar to XV-1s but better in just about everyway. I also got a hold of Air Tight recently but have not had much time to to experiment with it yet.
If you have to change cartridge, I would also consider My Sonic. I heard it in the same system as XV-1s and tonally it sounded similar to XV-1s but better in just about everyway. I also got a hold of Air Tight recently but have not had much time to to experiment with it yet.