powered sub woofer


 


  

  

  

  

powered sub woofer

Cross-section of a subwoofer. Image not to scale.

A subwoofer is a type of loudspeaker dedicated to the reproduction of bass frequencies, typically from about 20 Hz to about 200 Hz. It is difficult for small loudspeakers to reproduce frequencies below 40 Hz, especially above 100 dB, and so it is often advantageous to use a loudspeaker intended specifically for this task. Independently powered unit: 20 watts RMS; 40 watts peak.

History

The first commercial subwoofer was developed during the 1970s by Ken Kreisel, current president of M&K Sound/Miller & Kreisel Corporation in Los Angeles. Kreisel's business partner, Jonas Miller, owned a high-end audio store in Los Angeles, and customers of some of the highest quality electrostatic speakers complained about a reduction of bass response in the electrostatics, compared to conventional loudspeakers; Kreisel's solution was to design a powered loudspeaker that would reproduce only those frequencies that were too low for the electrostatic speakers to convey and thereby fill in the missing sonic information[1]. The first known use of a subwoofer in a recording session was for the mixing of the Steely Dan album Pretzel Logic when recording engineer Roger Nichols arranged for Kreisel to bring a prototype of his subwoofer to Village Recorders. Further design modifications were made by Kreisel over the next ten years (and continuing to the present day), and in the 1970s and 1980s by engineer John P. samedaymusiccom.

Home   cat supplies   supply chain management software   massage supplies   office equipment supply   mickey mouse party supplies   dj supplies   printing supply   wholesale dog grooming supply   wholesale quilting supplies   power sprayer   power lift chair   used power generator   steam powered generator   atx pc power supply   power over ethernet switch   power rack system   rascal power chair   internet phone services   free internet service   web site hosting service   mailing list services   debt consolidator service   jewish dating service   vonage broadband phone service   internet service provider dsl   mortgage loan servicing software   service management and dispatch software   satellite phone services   credit management services   toronto dating services   atlanta cleaning services   internet service provider chicago   customer service seminar   it consultant services   merchant services canada   residential dsl service   international call back service   best wireless phone service   payroll accounting services   lenders services   discount home phone service   warehousing services   it consultancy services