Amplifier is an electronic device that increases the power of signal. It helps to give a good sounds and volume of sounds. Like my hubby he bought an amplifier for our dvd player, because he knows that I love to sing even I don’t have a golden voice. According to him amplifiers help to give a good voice and sound, like engl amp at musicians friend, there are a lot of different amplifiers that also available in this online store. You can choose what you want and what you need as well. And you cannot go outside to buy a store of musical instrument that’s why you can just browse the link of this instrument. And you can find more what you wanted.