okay - i have Koogs E5 with me at the moment and it works as advertised - i listened to my headphones on my HT amp and the headphones definitely sound very acceptable to me even though it isnt pure hi-fidelity - but on my cellphone being used as an mp3 player the cellphone has very limited volume levels even though the sound is pretty decentish
adding the Fiio E5 in the loop pretty much gets the volume levels up and that on its own improves the sound no end - it sounds louder and more powerful and even though it doesnt do a whole lot for the soundstage it does make an improvement in that regard ie on certain tracks i hear the soundstage expanding a bit and instruments seem airier and larger but as usual for me with headphones im not the greatest fan but adding the portable amp makes the sound acceptable mainly because with headphones im not as fussy as others may be
the unit is way smaller than what i was expecting - its actually tiny and i was very surprised - also im busy charging it till the battery is full - this may make a bit of difference as well cos the battery was completely discharged within 15 minutes after i picked it up from koogs
in terms of the functionality of the unit it just has a volume level control and a bass boost - using the bass boost actually added a bit of warmth to the sound at lower volume levels and it tended to sound a bit better than the headphones out on the HT receiver headphones socket - switching the bass boost off it sounds almost identical to the HT receiver with my headphones with the HT receiver getting signal from my computer playing mp3's from itunes - i then transferred the same mp3 to my cellphone and played it back with the E5 connected and as ive said it sounds pretty close to identical so for the prices from dealextreme im pretty happy to order the E5 and just use that till i decide what headphones amp im really after
so since i dont really have a high end set of headphones and since mine are of the closed back variety more geared toward studio work and portable usage than being an audiophile set ie i have the sennheisser HD380 pro's - why i say that its geared toward portable is that it comes with a nifty carry case which makes it easy to carry about whenever you are travelling - and i can actually just slip in the E5 into that carry case with all of its associated accessories pretty easily - so for laptop and cellphone/ipod usage this is definitely a win/win situation
some pics of the E5 - notice how small it is compared to my cellphone

pictured with the headphones

the carry case of the headphones


the headphones itself - as ive said not really an audiophile unit but as im not really the greatest fan of headphones - this is as good as im gonna go with headphones - maybe i might invest in a good headphones amplifier later but its not really needed so for now im diverting my cash to other avenues

