I received my HiFiM8 today, and am finally giving it a listen 7 months after ordering...it was worth the wait! So far, I've tried 2 configurations:
1) USB out of my MacBook Pro, which is SSD equipped, using iTunes via BitPerfect
2) iPod Classic, hooked up the "normal" way.
I'm not sure how much of it is the USB implementation on the M8 and how much is the difference between iPod Classic and the computer, but the iPod version sounds a *lot* better than via USB. In comparison to the awesome, clean, powerful, detailed sound that makes my LCD 3's sing when the M8 is hooked up to the iPod, the USB connection to my computer sounds muffled and lacking in power with the same headphones - requiring volume to be at maximum to hear anything (with the iPod connection, my volume is below half).
So...while I'm not quite satisfied with the USB performance at this point, I am absolutely loving the iPod performance. And that's fine with me, since the purpose of this amp/dac is to use it with my iDevices - I have the Woo to use with my Wavelength USB DAC for computer use. But I am intrigued by this difference.
Has anybody else noticed this difference? I've read the last few pages of this thread and not seen much actual talk about the sound of the M8...
I'll keep experimenting with headphones and different computers and iDevices to see if this is maybe an issue of my laptop just having crappy audio output.