The Texture Coated Performance II is a two ply head manufactured with Aquarian s Vacuum Molded Process which eliminates air bubbles and wrinkles between the two plies. The two 7mil plies are sealed only at the edges a process that tames unwanted overtones and puts the focus on the low frequencies. The PFII is designed for loose tuning to deliver that low fat punchy sound that was a big part of classic rock n roll recordings/ The texture coating warms up the tone and the built-in frequency control adds focus and power.