24 feet DIN to XLR phono cable for Graham Phantom?

If the preamp accepts the phono signal differentially, then you stand a very good chance of making this work, especially if the cartridge is loaded at something less than 600 ohms.

This will create a low impedance balanced line, and will be quite immune to the cable length. Although the voltage output of the cartridge is quite low, the current is rather robust, else so many LOMC cartridges could not drive 100 ohms or less!

Now its my opinion that if you are placing the turntable in a particular location to minimize vibration, you should consider placing the preamp in the same location for similar reasons. The preamp *should* be able to drive long cables if its balanced (if it can't IMO you need to think about a different preamp- our preamps can drive over 100 feet with ease, like any balanced preamp should). So I would think in most cases that you would not need to run a long phono cable, but it is possible.

Jbuenech, if the XLR input is done via a StepUp Transformer, then you will get the benefit of a proper balanced input as the Common Mode Refection Ratio at the input should be quite respectable, this so long as the SUT is tied to pin 2 and 3, and ignores ground.

Jbuenech if your preamp can drive long interconnects then the equipment stand need not be between the speakers. Did I read it right that the Allnic has balanced outputs?