Question about Linn Unidisk 1.1/2.1 Balanced Outs

I was hoping someone here could answer a question about the Linn Unidisk 1.1 and 2.1 players. Both players have XLR outputs for stereo channels. Are either of these players true balanced designs?
I asked this question to a Linn sales engineer and this was his reply when I told him that a dealer had told me that the outputs were not "really" balanced.

"Hi Jim,

The balanced outputs of our products are truly balanced. It is curious to me that it would be explained otherwise.

Using the balanced outputs from the 1.1 would be best utilized with long runs of cable. Balanced runs are more immune to interference and can transmit signal with less loss over distances than unbalanced.

You most likely not see significant gains with short runs of cable. Please let me know if I can be of further assistance.

Best regards,"