This might be a stupid question,,but

1.5m is the minimum digital cable (AES and S/PDIF) length that I recommend when using a stock transport. This white paper I authored gives the technical explanation:
http://www.positive-feedback.com/Issue14/spdif.htm

And the RIGHT digital cable can make a BIG differnce.

Steve N.
Empirical Audio
Manufacturer/modder

Thanks Steve,I will try 1.5 !

Audioengr (Steve):

Thanks for the link to you're white paper. Ironically, I have a 75ohm cable I took in trade that I've been holding on to for DAC experimentation down the road and it is 1.5 meters (HT Cyber-Link Platinum). Cool beans.

Raytheprinter:

How do you like your Audio Mirror DAC? I was considering a Scott Nixon, but comparitive reviews here tend to favor the Audio Mirror.

I thought it would not make a difference either. I was wrong. Without a doubt the digital cable makes a difference that can be heard. Good luck.

Creeper,Im really happy with mine,very musical and well balanced from top to bottom,RAM does mods on them ,which im thinking of havng done at a later date.