How is my loading affecting my sound?

Here's some theory from Bent Audio. In short, too high a value will bring up the top end, too low a value will do the reverse.

The Bent Audio site provides such a clear explanation, it's a pity it applies only to systems which employ a step up transformer in the path between cartridge and phono preamp (or "phonostage" if it's built into your main preamp.)

There are a number of threads (about 50) here on Agon that go into great detail on (moving coil) cartridge loading. You can access them easily by selecting 'analog' for the category field, and 'loading' for the keyword.

Dear Lakefrontroad: The Groove comes regulary with an impedance of 100 Ohms. In order to change that impedance you have to ask where in the circuit board and which resistor you have to change for a different impedance. Likely your unit has that 100 Ohms impedance that is a point to start.

I loaded my XV-1 at around 700 Ohms and with a VTF 0f 2.4 grs. and sounds great.

+++++ " What difference should the loading make? " +++++

If you open to much that impedance: 47K, you will have a bright sound and if you close it you can have a dull sound. The load impedance affect firstly to the high frequencies quality reproduction.

This cartridge has a flat frequency between 500 and 800 Ohms: you have to try in that impedance range.

The Xv-1 is trully a natural/transparent cartridge with a near perfect tonal balance top to bottom. There are other characteristics but when you achive these ones you will be on target.

Btw, impressive audio system you have!!!!!! Congratulations """""

Regards and enjoy the music.
Raul.