I'm fairly new to Head-fi and whilst I've always enjoyed listening to music on my PC with Sennheiser HD555's more than my iPod I never really thought much about it until stumbling across this site.
Since then, I'm now usually listening to my Beyerdynamic DT1350's with the XM6 which is far better than my old 555's imo.
Few queries about bits to do with the amp and I suppose how the headphones in general or how certain headphones can react?
First thing is the cross feed.
Started playing around with this for some Rage against the machine tracks that have instruments with 100% left and 0% right etc so thought I'd see how using cross feed made this any better... But actually even on the most stereo setting, the cross feed appears to increase the bass which starts to drown out other more subtle instrumentals within tracks so whilst it does seem to work for a few tracks, the vast majority now sound very bassy and I'm not sure if this is the amp, or the headphones or both together?
Next is the additional 75ohm impedance that you can enable.
So my DT1350's have 60ohm normally, and so I've always left this disabled so it's 60ohm's total but I was wondering if there is any benefit at all to using this switch to make my headphones basically 135ohms - would this help remove any static/noise that can be heard during quieter sections of tracks or will it not make much difference and it's just the headphones themselves that'll cause this?
- main reason for this question is i've been looking at the new posting around the T70 and T70P, wondering if it's worth getting the 250ohm T70 if the XM6 can drive it, and if I'd notice any benefit?
Other features very clear and I've been using the USB DAC with the source being my laptop which also seems pretty nice.
All in all, the extra parts of tracks that I'm hearing with the amp that I don't seem to get without it makes it worth grabbing and also since i take it all over very happy with the battery life, its great!
Hopefully these questions aren't too simplistic :P