Carlucci Posted March 30, 2001 Share Posted March 30, 2001 I have the Yamaha HTR-5280 AV Receiver. Recently I bought a Klipsch KSW-12 subwoofer. My question has to do with the best way to connect the subwoofer. According to receiver manual, the LFE/Bass output jack has an automatic filter (cutoff) at 90Hz. My subwoofer has a filter that is continously variable up to 120Hz. I would prefer to use the subwoofer to its fullest extent and range. Is it therefore preferable that I connect my subwoofer to the main l/r speaker connections, and then connect my main l/r speakers to the subwoofer, and instruct the Bass output to go to "Main", with all others set to small? Or should I just use the LFE out, and set the crossover on the sub to 90Hz? If I do this, won't I be filtering what is already filtered, thereby introducing some distortion? Also, the Subwoofer has LFE left and right jacks, but my receiver only has one output. Is there ANYTHING to be gained by splitting the output into BOTH jacks? If it helps you answer, my main l/r speakers are 1978 Klipsch Heresys, which are up on stands and don't give a tremendous amount of bass by themselves. Quote Link to comment Share on other sites More sharing options...
robotec Posted March 30, 2001 Share Posted March 30, 2001 Try this link: http://www.polkaudio.com/home/faqad/advice/bassmanage.html Quote Link to comment Share on other sites More sharing options...
Carlucci Posted March 30, 2001 Author Share Posted March 30, 2001 quote: Originally posted by robotec: Try this link: http://www.polkaudio.com/home/faqad/advice/bassmanage.html Thanks for the great link. I've printed out this thorough explanation. It's fueled my suspicions enough to give it a try. Has anyone tried both wiring schemes and noticed an appreciable difference? Quote Link to comment Share on other sites More sharing options...
boa12 Posted March 30, 2001 Share Posted March 30, 2001 welcome to the great subwoofer vs. receiver bass management world! keep in mind that the LFE channel can carry up to 120HZ signals. since the ksw-12 has no unfiltered input (like they put on the ksw-15), i'd just wire it up speaker level. good way to avoid all the conflicts & hassle. jmo. ------------------ Klipsch KLF-30 (front), KLF-C7, Cornwall I (rear) Velodyne HGS-18 sub woofer Monsterbass 400 sub interconnects & Monster Z-12 cable Sony STR-DE935 a/v receiver Sony DVP-C650D cd/dvd player Sony Trinitron 27" stereo tv Toshiba hi-fi stereo vcr Technics dual cassette deck Technics direct drive turntable Scientific Atlanta Explorer 2000 digital cable box rock on! Quote Link to comment Share on other sites More sharing options...
T2K Posted March 30, 2001 Share Posted March 30, 2001 Carlucci, yeah I noticed the diference.Run speaker wire from either "B" speaker terminals or you could do as I did and stack bananas on top of your "A" speaker terminals. I noticed a substantial (audible) difference when I later removed high level and went to line level inputs to the sub.Drop in output with line level coincided with a "tightening" of bass which can be remedied with volume control.Speaker level to sub will allow you to "use the subwoofer to its fullest extent" and the same can then also be said for your Heresy's.Use of a "Y" cord at sub is said to give a 6dB increase in output.May the force be with you. Keith Quote Link to comment Share on other sites More sharing options...
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