Hope you enjoy it
Cheers
Matt
http://www.totallyguitars.com/vintagesnapshots/?p=13
.

Help ! What kinda ears do these people have? I still can't tune my guitar without an electronic tuner!Up until 1946, Martin Guitars had top wood made out of Adirondack Spruce ... in 1946, they changed ... Martin switched to Sitka spruce...
In my opinion ... Sitka doesn’t seem quite as resonant, it has a different overtone. Adirondack – mostly it’s the response, I think if you were to describe the sound. It’s got a crackle and immediacy to the tone that some people say is not quite this present in Sitka.