[Allucid]

If it's a later model - check out the Equaliser app from the i-tunes store.  It's pretty mature now, and a better way of shaping the sound than having to rely on a portable amp.  If you want something even easier - the Accudio Pro app is pretty good too.  The actual software equaliser included on the ipod/touch/iphone etc is rubbish.  The add-on apps though are actually pretty good.  With a bit of practise, it's amazing how well you can shape the sound without having to buy a warm amp with hardware EQ (ie bass or treble boost).

Just another option - and this one won't break the bank

I've found an equalizer app a while ago, which I'll share, I personally don't like EQs.
It's an app by Denon. You can create points on the wave of the song to deepen the song, ie, make your own EQ or use their presets, which can be tweaked to your liking. It's also a decent music app.

 

[Bassheadspl]

Definitely the fiio e5, its the smallest sized amplifier in the fiio amplifier range. But if you are after more power and a bigger bass boost, then the fiio e11 is the better one.

 

[Tanjent]

Quote:

Maybe an E6 because it is absolutely tiny? Or an E11.

E6 is great with a Clip+  same size almost!!!

 

[Allucid]

I don't understand, you say the E7, E11 etc is better, but the E17 is the newest, so shouldn't it be the best out of them all?

 

[kurt bermuda]

One design aspect that I like about the Leckerton UHA-4 is it's rounded encasing. It doesn't catch on pants seams. However, your headphone jack probably will. It also has digital volume control so a user doesn’t have to worry about lint eventually getting into an analog pot. Lastly it’s lite. Can’t beat the size and weight of this thing. In my opinion, these features make this portable amp well suited for walkers. I've used it while walking several times.

 

[Tanjent]

Quote:

Maybe an E6 because it is absolutely tiny? Or an E11.

E6 is as large as a Flipbook of Matches...

 

[peneloepi01]

E11 is better than E17 on amp section.