I don't get that with my setup and if you take a look at my System pics, you'll see that I use a serious amount of maple. However, when I placed my TT on the maple slab that my amp is currently on, I did hear a softening overall, so I changed that.
Have you seen this site, this guy loves Spruce? I don't know about the bass, but if you contact him I'm sure he'll have an opinion about what to try.
http://www.mother-of-tone.com/mother.htm
Have you seen this site, this guy loves Spruce? I don't know about the bass, but if you contact him I'm sure he'll have an opinion about what to try.
http://www.mother-of-tone.com/mother.htm