Sonic difference 1.0m vs 1.5m digital cable

Would take some mighty golden ears, IMO. I've never heard a difference of a half meter of IC or speakerwire. I suppose if it were not well shielded that the longer length would make it a bit more prone to picking up hum from other components and power lines.

Some would argue that the LONGER digital cable actually sounds better. At least I remember that argument having been made before.

I forgot to mention that the difference might be audible to a select few if you are using a passive preamp. Even then I have serious doubts.

digital cable with passive preamp?????

There's been a lot of discussion about optimum digital cable length on AA's cable asylum, with adherents favoring l.5 meters, 7.5 feet and -- lately -- as short as humanly possible. I'm currently running a 6-inch link between a moded Toshiba 3950 and an Ack dAck! and it seems to sound a LITTLE better than the longer ones I've tried, but I could well be kidding myself. Dave