Ceramic, Felt, Cork, Stainless Steel. All materials that I love, but not the typical materials that you find in a set of speakers. But that is exactly what Joey Roth has used for these beautiful ceramic speakers. The $500 price tag isn't small, but in the audiophile world it certainly isn't outlandish either especially when you consider you are getting speakers and an amplifier. If they sound as good as they look they just might be a great value.