Originally posted by BruceBanner There do seem to be devices intended for this purpose but they seem to either be poorly optimised (bad sd card copy times... i.e. actually failing in arguably thee most important aspect), or just overkill and too convoluted.
I just picked a solution and lived with it, the Hyperdrive has done almighty work, even though the card transfers are 30mb/s - even with the 645Z, I can't fill a 32Gb card fast enough to ever find myself waiting for the hyperdrive to finish backing up a card.
Originally posted by BruceBanner out and about with traffic and life sounds all around me I tend not to get bogged down with all that hi res stuff, not for portable audio.
When i'm working on my own and out and about, you will often find me listening to music through a good pair of IEMs*. When i'm working in the studio I have a big Klipsch sound system with dual SVS subs**. Good Balanced armature IEMs typically are very resolving in the higher frequency 7~10khz and up range, and that is where encoding artifacts commonly show up with even high bitrate MP3 recordings. Distortion is also an issue in the bass range 50hz and below and it is common that most devices have woeful THD figures when you push those tiny class D amps - again Dual/Quad BA armature IEMs can reveal this unfortunate trait.
*currently doing a review of the recently released Campfire/ALO Polaris Hybird IEMS - sadly they don't Isolate as well as pure BA IEMs, but they have texture to their sound and more dynamics than pure BA IEMS.
**I'm a fun neighbor to have working in the next studio. If I'm working with models: I'll let them choose the music they listen to - it helps them feel more comfortable in the strange surroundings of a photographic studio.