new speakers?

i think i forgot something: the speakers will be driven by a nad s 300 - i just bought a used one. i'll just listen music with this set, it will be in my bedroom.

if you want bookshelves with a strong Bass, try Totem acoustics Mani.
they have an incredible 29 Hz.

Or else the PMC bookshelves are also pretty good, with a good bass extension.

The totems are really good and their load a bit tough should be easy with the NAD..

I am assuming you mena a low bass extension ie low frequencies. if you mean strong bass then you could also be talking of the 50-100 Hz range but high SPLs...in that case a sub would be a better bet.but that may not be accurate

from my experience the Dyns have a good bass...the problem could be with the setup you have heard....