| Originally Posted by Andrea Eh, that's not unfounded -- the AD8397 draws about 22 mA at idle, whereas other lower power op-amps draw 7-10 mA. So I guess you should expect about half of the battery life, although it's to be considered that this particular op-amp can run well with as low as 3V ... But the Go-Vibe 4 has a DC jack, so this wouldn't be much of a problem -- unless truly portable is your thing, naturally. Anyhow, the AD8397 would be ideal for a fairly low impedance (though efficient) headphone like the HD595. |
| Originally Posted by audiofreak i have been reading these forums and other website reviews about these because i had internally made the decision these seem to be "for me". i finally bought them on monday, received em tuesday they are my very first hi-fi component. a few days before i got them, i got a Total Airhead amp (any opinions from you guys, or suggestions on if i wasted my money, etc) when i took them excited out of the box and tried them on my laptop (foobar2000 through an audigy2 and then thru the Total Airhead) i was a little disappointed. they sounded dull, sort of hushed and dim. it wasnt a volume issue, because i could turn it up and they would be loud, but still have a dullness to their sound, not very detailed and the highs seemed too low in volume. i am comparing the sound to the sound from my $30 HA-D350 headphones that i have always had, and just to how the songs had always sounded from radio/speakers/etc i listened to them for hours into the night and left them on all night. the next day i did notice a difference in that the bass that became distorted very easily earlier was much more solid and alive. the higher notes started coming in a little more too. since then i have been leaving them on during nights and days while i am away to burn them in more. by now they seem much better and alive, but i still have to adjust the equalizer (minorly) to add some extra highs around 1.8kHz-2.5kHz here is a question i am wondering...i asked someone about this and he told me that playing mp3s that have poor recording quality is an issue. some i know they are bad, but other CDs that i have ripped myself using 320kbps LAME or 330kbps AAC still have the dullness. is there a piece of audio hardware that i am missing that is the weak link in the chain here? are my 595's just not burned in all the way? i do like the 595's funness and clarity (when the song playing has the clarity to begin with) and i do like their look...several times they are sitting on my desk and i want to put them on and listen even when i wasnt originally feeling like listening. the earpads are firm but soft and comfy as i wear them now. anyway, if anyone knows what issue i am talking about the muddy high-notes and has any hardware suggestions (that will really make a difference, i dont have $ just to burn for very minor things). also if there are some recordings i could buy that can showcase the true performance these headphones are capable of i am all ears. on acoustic guitar, these things shine and sound very natural, and i want something slower and intimate (being there in the music and savoring each note/word/etc...i have too many rock songs that are too loud and cant get too close otherwise i have to turn down) |
| Originally Posted by Andrea Eh, that's not unfounded -- the AD8397 draws about 22 mA at idle, whereas other lower power op-amps draw 7-10 mA. So I guess you should expect about half of the battery life, although it's to be considered that this particular op-amp can run well with as low as 3V ... But the Go-Vibe 4 has a DC jack, so this wouldn't be much of a problem -- unless truly portable is your thing, naturally. Anyhow, the AD8397 would be ideal for a fairly low impedance (though efficient) headphone like the HD595. |
| Originally Posted by busta I would PM you but just in case anyone else was interested, www.go-vibe.com . |
| Originally Posted by pixelshader Hm...what difference is ther sound-wise between the op-amps?
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