hi, thanks for your response guys, was very helpful.
my search to the right speakers is moving on, according to this post
The 'Bassics' of Bass Management - eCoustics.com small satellite speakers wil never delivery a proper bass, thats where the sufwoofer comes.
A taller front speakers with proper bass will help to reduce the subwoofer work( lower volumes)
For the first time looking for speakers with lower frequency (hz) , in order to reach a 80hz frequency, apparently its the ideal for the bass wave.
Still the canton 125 mx has a minimal frequency of 120kz.
I'm thinking to move to a different level, in order to reach the 80hz level (speakers and subwoofer) lowering the volume.
-the new canton 130 mx as minimal frequency of 120hz
-the new canton 160 mx, minimal frequency of 65hz, already sell for 500£ (600€ ) in 3 german websites.
i think its a risk to acquire a expensive speakers for my first set up, i probably acquire a cheaper ones, onkyo sks-ht648 ( minimal frequency of 80hz) selling for 200£, i will test it with low volumes, adjust the crossover frequency, to see how it goes.
if i don't like just return it.