What is 'sub-sonic'?

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What is 'sub-sonic'?; An adjustable dial on my amp.
Topic Started: Tue May 5, 2009 4:20 pm (96 Views)
sportline_stu	Tue May 5, 2009 4:20 pm Post #1
Member Posts: 1,004 Group: Members Member #2,447 Joined: March 23, 2008	The amp I have powering the bass speakers has a dial labelled 'sub-sonic'. Its adjustable from 20htz to 55htz. Its with the low pass filter frequency adjustment and the 'bass boost' dial. I'm not sure exactly what it does or how to set it properly? If I vary it I cant hear any real difference. I THINK the bass sounds harder the lower it is set. Any ideas what it is supposed to do? Stu PS - Ive lost the instructions!



v12	Fri Aug 14, 2009 1:19 pm Post #2
Newbie Posts: 12 Group: Members Member #3,729 Joined: January 14, 2009	Stu, A low pass cuts frequencies from above the range you've set so that you don't send mid-range frequencies to the sub. A sub-sonic cross over cuts low frequencies from going to your sub. Unless you have very large, high powered subs, they wont play much under 30hz. The lower the frequency, the harder it is for the sub (and amp) to reproduce the sound, if you are cutting these really low frequencies out your sub and amp will be able to produce much cleaner, punchier bass in the more noticeable ranges (30hz-80hz) All clear?



sportline_stu	Thu Aug 20, 2009 8:10 pm Post #3
Member Posts: 1,004 Group: Members Member #2,447 Joined: March 23, 2008	Yeah I understand now. Cheers matey. Stu.



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