inputs.text: like listening hiend home stereo systehem even better - two weeks ago received hm 901 came standard amp ordered balanced amp hifiman week ago since comparison standard stock amp balanced ampi also switching back forth hi res classic switch headphones using shure 1840 grado 500 sennheiser hd600 sennheiser hd650i owned sold hm801 know difference performance two also owned hm601 not use compare either since not leaguesimply put hm901 better hm801 thought hm801 would hard beat also thought hm901 saber dacs might sound drier not analog hm801 notmy 4 pin balanced 35 mini cable charleston cable company manufactured good old usa beautifully made sound quality exceptional honestly say used various major brand cables hd600 hd650 said highly recommend charlestonaudience cable great guy deal customer service oriented not mention quality cable cable uses designed manufactured audience simply opinion nothing company search additional informationmy experience music professionally long one fortunate enough owned tried many hiend stereo productsso sound quality important mei not go long detailed description terms sound quality hm901 produces plenty professional reviews coming soonhaving said say fang one hell job designing body brushed aluminum no not plastic feel like 100000 portable player way yes look good eyewell beauty eye beholder looks fine plastic high grade plastic seams perfect everything looks like took time assehemble pride maybe whatever works feels right hand easy friendly use againto really like way lookshow music sound amazing digital player trained ears sounds perfect stereo home systehem top line spend 90 music listening hm901 sennheiser hd650 instead prefer 24 bit music though bit quality detail etc 16 bit not lot enough definitely noticeable person picky sound quality music listen sometimes maybe picky especially produced equipment playing iti highly recommend balanced amp mini amp definitely standard amp quite noticeable difference standard balanced ampi not trouble particular manufactures mehemory cards although prefer sandisc latest firmware works fine not change sound signature cause problehems easy install twice skipped ahead one songs listening firmware never happened afterwards guess see happens roadi love everything hm901 worth every penny hear music produced high quality coming small device amazing listening sound quality enjoy home stereo systehem lately saying lot coming portable player could not ask fang super job design build quality hm901