Keywords: , Amplifiers
Description: By screening amplifiers with . the eligible records: 726
Count: 726
Answer: The purpose of an amplifier is to receive a small electrical signal and enlarge or amplify it. In the case of a pre-amplifier, the signal must be amplified enough to be accepted by a power amplifier. In the case of a power amplifier, the signal must be enlarged much more, enough to power a loudspeaker.
Answer: Typical costs: Most amateur-use electric guitar amplifiers include a built-in speaker (called a combo amp). Expect a 15 to 40 watt output with an 8- to 12-inch speaker, suitable as a practice amp or for performing in small venues such as a bar or coffee shop. These types of amps typically cost $40 to $200.