Hi everyone!       I have been a passive observer for some time on the forums, and after saving up and finding quite a bargain on the l1, I now have space in the budget for a portable amp!   As it is a fairly low impedance and my sources generally do not have any issues with the volume so I guess I don’t really need an amp to increase the volume, but it rather would be to increase the sq.   Sources: My source is at the moment an iPhone 4 with an old...