During the past 20 years the quality of record players and vinyl records have improved dramatically. Acoustic feedback is one of the big problems when playing records. The cause is the sound that has just been produced by the speakers which comes back to the record player and cause it to vibrate. The problems is that there is a very slight time difference between the reproduced sound and the sound that is fed back onto the record player. This results in a big loss of detail and clarity and makes the sound “muddy”. So every effort has to be done to isolate the record player from its surroundings as well as to isolate the record from the record player.