Who bass like ...

I was looking for an iPod / iPhone dock with a balanced sound image that can deal equally with all styles of music.
I must admit that I am very demanding when it comes to sound, but I have no miracles expected!
Here's my personal result: typical Bose sound with very spatial, powerful interpretation (I Bose in the car and also the iPhone headphones), but in principle a rather mushy, strong bass-heavy sound. In direct comparison with the B & W Mini Zepellin the Bose unit sounds so, so whether you put a cloth over the B & W device. There go a lot of details, such as lost, for example in jazz; Voices appear much faded (eg Adele).
Especially with bass-heavy music (electric) was the sound for me almost unbearable.
I have tried different lineups - no essential difference.
The only thing that was really fun with the device was Metallica - but I will also sometimes hear something else ...