Your speakers left me with 2 pairs of grilles, one pair blue, one pair black. No telling where the second pair went. Black does look real good against walnut. Even though Navy Blue is the traditional JBL Pro garb I find myself sturated with it and am always looking for something that's a change. My quasi permanent 4354's have two sets of grilles - blue on them now and maroon to change the looks once in a while. I'm looking for some original weave camel as I really like the color against walnut with strong vivid grain. Consider a second pair of grilles instead of just changing the color. Once you go black you might want to come back.