Thanks guitarmom for the info about guitar strings.
I know that evry guitar have his own sound,i mean the type of wood give 's the guitar wish the right strings his own sound.
My Seagull Gostline have a sollid ceder top,and have a dark sound with Elixer Phrozer Bronze 011.
On my Yamaha APX900 there is the setup the same,Elixer strings but have a other sound.
The APX900 have a sollid Spruce top.
Thanks for al the info.
cheers...from Holland...........Anton