hi this is noor i wnt know the procedure and precations errection for PRESSURE AND DP transmitters? how to take impusle line for level and flow?(water and steam) impulse line sizes? and type of material ? plz give me answer / reffer any website ? to me mail2noor.hyd@gmail.com. 1 Answers.
A specialized speaker, referred to as a subwoofer, is responsible for that deep bass experience. 1  The subwoofer is designed only to reproduce the lowest of audible frequencies. In home theater, this is often referred to as LFE (Low Frequency Effects.
A subwoofer is used to pick up the low bass notes. Tweeters pick up the higher frequency notes. Speakers will pick up the notes in between, but most after market speakers all have a woofer, mid range, and tweeter in them. the mid range picks up the notes in the middle. vitokav Â· 9 years ago.