I have a Audio Research SP9 MK III. These are the gain and loading specifications: Gain Phono to main output 67dB Phono to tape output. 46dB Loading 47K It seems to me the gain on the phono is only suited for a low output cartridge. I am using a Denon 103 on the phono/main output and have more than enough gain. However the preferred loading is not 47K. Am I missing out on anything by it not being a perfect match? The second specification of gain on the tape output - how would that work? Could I use a high output moving coil or moving magnet on this output? Not sure how that works. I've read that there may not be a way to control volume in that case. Looking for a sub $500 cartridge that would work well in this system without adding a separate phono stage. The cartridge will be mounted on a Rega 300 arm. Looking for a step up in sound from the Denon 103.