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 generally not a stand-alone component. Since a sub is typically used to produce frequencies from 20Hz to 200Hz, other speakers have to handle the rest of the audio spectrum (200Hz to 20kHz). It is best to add a subwoofer to a sound bar, floor standing speakers or a full surround sound setup.