@ cedou97yon
Sorry for the late reply...(Hey its summer!).
Had problems lately with the the USB Recorder Pro when I updated my Xperia Z to the latest firmware (hangs after two or three songs). So I could not give you a battery test for the moment.
Kindly pm SV_huMMer he has the Dac also using a Samsung S3.
- Was looking for a portable Dac with at least 24/192 capability for my smartphone. And came across with m2tech.
My reason for choosing the m2tech are: small, 32/384 capability, multi-platform (Win, Mac, IOS, Linux, Android). When Wicked Digital (
http://www.wickeddigital.com.au/information/audio-product-reviews/354-m2tech-hiface-dac-review) and What Hifi (
http://www.whathifi.com/blog/m2tech-hiface-dac-hands-on-review) gave resounding reviews, I said got to have those.
Reason for not choosing Dragonfly, Meridian Explorer or microStreamer is that they support only upto 24/96 (have a ton of 24/192 files).
m2tech Hiface DAC is designed as a preamp so amp is neaded. However it drives my HD-25 at very acceptable levels. I need an amp for my PFE 232 though.
Here is a review and comparsion with Dragonfly (
http://www.audiostream.com/content/m2tech-hiface-dac).
My impressions on my very limited (audiophile) experience:
This shines when you go high-def (24/192).
Had three albums of Norah Jones in 24/192 - impressions - Its very musical and liquid: definitions, texture, voices are conveyed while maintaining its smoothness and sweetness (analog like). Neither has a full/rich mid and substantial low end but the decay of instruments at end of phrases however are very realistic.
Trying 2L's 24/352.4 Britten's Simple Symphony resulted a big dynamics and huge soundstage. Like everything was there.
Overall, VERY VERY NICE! I am very happy with my 230euro acquisition.
Too bad had a glitch right now with my USB Recorder Pro. The dev says he has problems with 32bit DACs (may be a consideration for your purchase). It worked for me before. Maybe I'll just wait. Right now I am using it in my laptop using JRiver. With iZotope Ozone for adjustments and upsampling everything to 32/384 when playing.
Hope it helps.