Has anyone had success with a preamp with a Marantz PM 8006?

I previously had a PM 8006. It is known for having a good built in MM phono stage. I d experienced a nice improvement in vinyl playback by adding a Rothwell MCL step up transformer and using an MC cartridge. 

I currently have a Garrard 301 (Oil bearing) turntable with an SME 3009 non improved arm with a Ortofon 2m Brown Cartridge.

"Garrard 301 (Oil bearing) turntable with an SME 3009 non improved arm with a Ortofon 2m Brown Cartridge."

Spend more money and get a "better" main amp and phonostage.

The table setup warrants a substantial amplification upgrade.