BizzyBobby23 Posted May 30, 2004 Share Posted May 30, 2004 What does LFE and Phase mean and/or do on the back of a powered subwoofer? thanks- Quote Link to comment Share on other sites More sharing options...
easylistener Posted May 30, 2004 Share Posted May 30, 2004 LFE is used for hook up from your receiver. It is the .1 of 5.1. the phase switch is used to put the sub in phase with your other speakers. Flip the switch and see if you can hear if it sounds better. Quote Link to comment Share on other sites More sharing options...
Jay481985 Posted May 30, 2004 Share Posted May 30, 2004 ---------------- On 5/30/2004 2:02:49 PM BizzyBobby23 wrote: What does LFE and Phase mean and/or do on the back of a powered subwoofer? thanks- ---------------- LFE is part of dolby where it is called low frequency effects. It instead of using the mains to send to the subwoofer, it has a separate rca cable that sends signals to the subwoofer. Phase on the subwoofer means which phase to put it in there should be 0, 90, 180. Usually it is either 0 or 180. To know what that means try it in all frequencies and listen for which one is loudest. Because if it is not in phase with the rest of the speakers it sounds not as clear and lower volume Quote Link to comment Share on other sites More sharing options...
Darren Posted May 30, 2004 Share Posted May 30, 2004 So how do you "use" the LFE on the sub? Right now, I have 1 RCA cable going from my sub-out on my processor to a "Y-split cable" which then connects to the left and right on the sub. Should I have another RCA cable going from the LFE outlet on the processor to the LFE on the sub? I can't even recall right now if my processor has a separate LFE out (I know it has 2 sub-outs). I get really good bass on 5.1 sound, but maybe I'm missing out on more. Quote Link to comment Share on other sites More sharing options...
gcoker Posted June 1, 2004 Share Posted June 1, 2004 If your receiver/amp has a single sub output and is Dolby Digital and/or DTS the that is the LFE output. By connecting it to the LFE input on you sub the receiver/amp cross over is controling the frequency the signal is sent to the sub. The sub's internal cross-over is by-passed. Generaly, that is the recommended connection to make. However, by splitting the sub out with a 'Y' and connecting to the left and right input on the sub the sub's internal cross-over will be active. There is typically a slight gain in the sub's output by using this second type connection. Either way is acceptable. Quote Link to comment Share on other sites More sharing options...
toddvj Posted June 3, 2004 Share Posted June 3, 2004 That's correct. I'd recommend turning the Sub's Crossover all the way up, or Bypassing it if it has the option, if you are using the L/R inputs. Quote Link to comment Share on other sites More sharing options...
Darren Posted June 4, 2004 Share Posted June 4, 2004 That's what I do. I have the processor's cross-over set at 80 hz and connect the processor to the sub's L/R inputs. The cross over on the sub is then set to the max position - 120 hz I believe. Is it just me, or are subs a lot of work (fun work and worth it, but not a "plug and play" option). Quote Link to comment Share on other sites More sharing options...
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