Best products for baffle material s ?


Looking for the "best" combination of materials. Building new boxes for my B&W CM1 bookshelfs as I can feel vibration on the baffle and sides, with classical music, quartet, at even very modest volume. These are very small 2 ways - so I can afford to go "all-out" on the boxes. High mass, inert, shaped baffle to minimize diffraction, interior design to break up waves. I'm considering only products that can be "woodworked". More detail later. Thanks.
ptss
Rh I had no idea the CM1 woofer could bottom out. I have always maintained screw torque but never driven the speakers very hard. But even so the cabinets are nowhere near inert. (However I drive them with a 200 watt Spectral amp with ample current; lots of clean power available for dynamics-but even so these little B&W's don't have good dynamics.) Making the baffle inert will improve dynamics considerably.
"09-10-14: Ptss
How about 3/4 or 1&1/2 inch black granite countertop green glued onto 3 inches thickness of MDF? Very non-resonant?"

Corian would probably still be the better choice. It has the consistency of mdf but is solid like granite. You wouldn't have to mix materials to get the best results.
Ptss, I sent you a private message via A-Gon. I would consider selling the CM2 bass modules.