Bose speaker

Hi ! I have bough bose speakers. the '' spécialist '' said they are amazing. I bought the 201 series 1   deception for me.

I bought the 501 I sold them after 1 week.

I bought the 601 serie I . ok lot of sound every where but I had better sound with my Kef 303 with the add of a sub woofer.

so I am thinking of solding them.

what you suggest for about 600$ in the used market ?

Tanks!