In order to reduce acoustic feedback from the surroundings back to the record and the cartridge a lot of effort has gone into developing turntable mats that make the reproduced sound crystal clear with great separation and detail. This has been done by experimenting with various materials which absorb unwanted vibrations which were not present in the original recording. Now many people are trying to combine these different materials as a sandwich at the same time in order to reach better results. Now Tonar offers you this opportunity to experiment yourself but at modest pricing.