sumiko black pearlSumiko Black Pearl MM cartridge with great musicality and frequency range Sumiko Black Pearl is a further development of the Oyster model, where, among other things, you get a much wider frequency range. The result is a significantly improved stereo image with more cohesion and more nuance. The sound signature is still the same as with the Oyster cartridge, so you can enjoy a very harmonious and musical sound reproduction that you can listen to for