I Tell you, these speakers are AMAZING! ive had them for a year, and i can tell you, they make me want more of them.
You need to be careful as thier are 2 types of 2nd gen's the shinny speaker ones and the fabric looking speaker ones. Dont want to mix the 2 as they have sound clash, and you end up with more surround than extra volume.
seen as the fabric ones arn't sold anymore should have nothing to worry about.
People keep saying that the boxes "over-rate" how loud they are, yeah ok, il admit in your room its no louder than your average stereo, just with added bass.
These speakers wernt aimed at being played in your bedroom thier PORTABLE!
you go outside, and ive had neighbour complaints due to me playing these so loud, 2 of these speakers got my street protesting against me playing them on the roads, so what do you think i did?
BROUGHT 3 MORE XD oooo when i tell you uve never heard something so loud, UNDERSTATEMENT.
its like a walking super boombox, that baffles peoples minds as to where the sounds coming from.
2 intresting things you may want to take into account, if you have an X-FI sound card in ur pc, or a soundcard of value in your pc, these things PUMP like thiers no tomorrow!! careful as you might blow erm!
For everyone else who doesnt have one of these, give your phone a go, i recommend (New Gen Sony ericsons, nokias if you have power mp3 installed on them, samsungs, blackberrys, htc's) music phones, as for the ipods, itouch, apples software reduces alot of music volume to average listening volume and use loud headphones so dont expect them to blow your iphone away.
My conclusion, no matter whats powering these, on an average of 6 to 10 hrs battery life, POWER THROUGH QUANTITY!!! XD
o, and just to note, if you stick thesee in your pocket, and put your hood up it sounds like u've got a sub in ya hood :P or on a box or flimsy surface turns that into a sub as well :P just one of these puppys jumps around and takes my phone for a walk!