I've read the V-moda has 1.3 ohms though...
How did you measure the monoprice cable? I have a multimeter so I might try and measure it for kicks.
Tyll @ InnerFidelity stated the VModa cable had 0.5 ohm in his X1 review. My multimeter has alligator clip leads so its a little easier to measure. He claimed 0.5-0.8 is normal so the Monoprice (1ohm) may be negligible. I run mine thru A/V receiver (via phones surround which I actually prefer over my MixAmp) so I would like every bit of improvement considering supposed common high impedance of headphone jack.
On a side note, can't wait to read MLE and your X1 comparisons/review. I am having a hard time deciding between X1, Annie and D7000...ok not so much w/D7000 :) but, the He-400 has been dropped out of contention.