Jerry   they are usually solid , but I also have an all laminate DR-7. Not to worry   the sound is not audibily different to 99 out of 100 ears. Arguably laminates wll stay sraighter/longer than solid woods, given the solids are more prone to warpage.

I would not trade mine for a solid at this time, (It's also one of the first gen sigmas)   Yours is a valuable instument enjoy it and rest assured laminate or solid you own a very fine music maker

Neil