On top of a cabinet is much better then in a bookcase.
Blue-Tack will couple the speaker to the cabinet. Footers will have a different effect. Try both.
You can experiment with Vibrapods and Vibrapoints for relatively little money, and later use them under other components.
Blue-Tack will couple the speaker to the cabinet. Footers will have a different effect. Try both.
You can experiment with Vibrapods and Vibrapoints for relatively little money, and later use them under other components.