watermanpc
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- Apr 24, 2006
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Hi all, I would like to have some help understanding this issue given I feel more confused the more I read about it.
Simply put, when I adjust subwoofer LEVEL in the Avr and in the subwoofer's amp to read, let's say, 75db in the listening position, exactly, what am I calibrating?, I mean, is that LFE ONLY?. What about the redirected bass from other speakers?, how do the +10db boost of the LFE affects redirected bass?.
I suspect, that if I perform the above mentioned 75db level calibration at the listening position for the sub, that will be the LFE channel level ONLY, which already has the +10db boost, but all the redirected bass from other speakers (when set to small at any given frequency) will therefor, be listened at 65db (suposed both, the LFE and the redirected bass were mean to be at the same relative level) in the listening position. Is that correct?
I wonder this, because when I listen to a content with not much LFE ("U2 go home DTS" for instance), with the fronts set to LARGE AND subwoofer set to YES, I can hear much more bass than when I set all speakers to small and let the sub do the LFE+redirected bass. However, if I turn subwoofer level up by EXACTLY +10db in this last configuration, I then listen to pretty much the same level of bass that I did with the mains set to LARGE (ignore room modes and different frequency response of each speaker and sub). This leads me to believe that redirected bass from speakers is actually -10db lower than the specific LFE (.1) conten and thus, if I use bass management I will lose the redirected bass by 10db.
I own an onkyo 3008, and it has a setting for LFE for multi channel listening, DD, DTS, DTS HD, etc. called "LFE Level" that can be adjusted to: -infinite, -20db, -10db or 0db.
I wonder if, in order to let the LFE and redirected bass to play at the same level, it could be a good idea to set LFE Level to -10db and then increase subwoofer level from the actual -7.5db to +2.5db (so +10db) to compensate for the decreased LFE level but at the same time to increase the levels of the managed bass from other speakers.
I haven't done this test already, just because I'm not sure this is the way this all truly works so I would like to have some feedback from you guys before messing with the system, as the idea is to UNDERSTAND how this 10db boost of the LFE works and how it handles the managed bass.
thanks!
Simply put, when I adjust subwoofer LEVEL in the Avr and in the subwoofer's amp to read, let's say, 75db in the listening position, exactly, what am I calibrating?, I mean, is that LFE ONLY?. What about the redirected bass from other speakers?, how do the +10db boost of the LFE affects redirected bass?.
I suspect, that if I perform the above mentioned 75db level calibration at the listening position for the sub, that will be the LFE channel level ONLY, which already has the +10db boost, but all the redirected bass from other speakers (when set to small at any given frequency) will therefor, be listened at 65db (suposed both, the LFE and the redirected bass were mean to be at the same relative level) in the listening position. Is that correct?
I wonder this, because when I listen to a content with not much LFE ("U2 go home DTS" for instance), with the fronts set to LARGE AND subwoofer set to YES, I can hear much more bass than when I set all speakers to small and let the sub do the LFE+redirected bass. However, if I turn subwoofer level up by EXACTLY +10db in this last configuration, I then listen to pretty much the same level of bass that I did with the mains set to LARGE (ignore room modes and different frequency response of each speaker and sub). This leads me to believe that redirected bass from speakers is actually -10db lower than the specific LFE (.1) conten and thus, if I use bass management I will lose the redirected bass by 10db.
I own an onkyo 3008, and it has a setting for LFE for multi channel listening, DD, DTS, DTS HD, etc. called "LFE Level" that can be adjusted to: -infinite, -20db, -10db or 0db.
I wonder if, in order to let the LFE and redirected bass to play at the same level, it could be a good idea to set LFE Level to -10db and then increase subwoofer level from the actual -7.5db to +2.5db (so +10db) to compensate for the decreased LFE level but at the same time to increase the levels of the managed bass from other speakers.
I haven't done this test already, just because I'm not sure this is the way this all truly works so I would like to have some feedback from you guys before messing with the system, as the idea is to UNDERSTAND how this 10db boost of the LFE works and how it handles the managed bass.
thanks!