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<blockquote data-quote="morbidj" data-source="post: 4765480" data-attributes="member: 572135">I am a bit confused and believe this thread may be beneficial to those who are finding it difficult sorting through the lengthy post&#039;s regarding adjusting gain.My amp has a selection switch for the sub sonic filter, under normal circumstances I have this set to 25hz. While adjusting gain do I leave the SSF in place or turn it off?Next question I have is in regards to test tones. Some of the suggestion I have read list using a 0db 50hz tone while others suggest 60Hz then I have seen some that use -3db 50hz or 60hz. Can some one please explain the impact of using the different tones. From what I can tell the -3db tones make the system over all sound &quot;louder&quot; at the same head unit volume and amp voltage..Last question pertains to the cross over frequency I am unable to switch off the cross over however I have the selection range of 40hz-200hz approximately. I set my gain with the crossover frequency of 200hz then readjusted to 80hz for regular listening, was this the correct way for adjustment?</blockquote>

[QUOTE="morbidj, post: 4765480, member: 572135"] I am a bit confused and believe this thread may be beneficial to those who are finding it difficult sorting through the lengthy post's regarding adjusting gain. My amp has a selection switch for the sub sonic filter, under normal circumstances I have this set to 25hz. While adjusting gain do I leave the SSF in place or turn it off? Next question I have is in regards to test tones. Some of the suggestion I have read list using a 0db 50hz tone while others suggest 60Hz then I have seen some that use -3db 50hz or 60hz. Can some one please explain the impact of using the different tones. From what I can tell the -3db tones make the system over all sound "louder" at the same head unit volume and amp voltage.. Last question pertains to the cross over frequency I am unable to switch off the cross over however I have the selection range of 40hz-200hz approximately. I set my gain with the crossover frequency of 200hz then readjusted to 80hz for regular listening, was this the correct way for adjustment? [/QUOTE]

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