i have tried wood blocks made of different materials, such as maple, ebony, etc. . i have settled on cocobolo wood. it is worth a trip to a large lumber yard and investing say, $50 on a variety of wood to find the one which suits your taste.
i have found that ferrite beads on a digital cable often creates a more neutral frequency response.
i have found that ferrite beads on a digital cable often creates a more neutral frequency response.