FYI, the VK50 won't take BAT's phono cards. It's only for their other preamps, not the 50, 50se or 51se.
I had a VK50se now it's a 51se. I've used a BAT VKp5, p10, p10se (have now) as well as a Aestheitix Rhea. For the money, the BAT VKp5 is a steal. It's the price performer in the phono stage lineup from BAT. You can find them used for around 1200. Slightly more than your budget. Most medium output moving coils (.5 mv or so) will do awesome. Of course, so will MM. The BAT will have a super midrange, pretty much shares every trait you likely love about your vk50.
If you cartridge is that old, it's time for a new one.
WARNING. Be prepared. With your table, a new cartridge and a VKp5, you might seriously get into vinyl. If you can somehow swing the p5 and good cartrdge-you'll be in heaven.
Good luck
I had a VK50se now it's a 51se. I've used a BAT VKp5, p10, p10se (have now) as well as a Aestheitix Rhea. For the money, the BAT VKp5 is a steal. It's the price performer in the phono stage lineup from BAT. You can find them used for around 1200. Slightly more than your budget. Most medium output moving coils (.5 mv or so) will do awesome. Of course, so will MM. The BAT will have a super midrange, pretty much shares every trait you likely love about your vk50.
If you cartridge is that old, it's time for a new one.
WARNING. Be prepared. With your table, a new cartridge and a VKp5, you might seriously get into vinyl. If you can somehow swing the p5 and good cartrdge-you'll be in heaven.
Good luck