When I purchased a Pro-Ject 9 Turntable off ebay, the seller very kindly included this Cambridge 640P MM/MC Phono Pre-Amplifier - free! I need an MC Phono stage for my DIY Schroeder Arm as I intend using the Denon DL-301 mkII MC cartridge in it. Seems this little unit is pretty good and has lots of modding possibilities.