Agree with Dill on the Herbies Audio Labs Gliders. A friend had big Proacs (can't remember the model), didn't like the spikes and asked me for help. I was surprised at the improvement in sound with the Gliders. My friend is happy.
Also, based on lots of personal experience, I would highly recommend any Herron Audio product.
Also, based on lots of personal experience, I would highly recommend any Herron Audio product.