RoboKlipsch Posted August 3, 2016 Share Posted August 3, 2016 Great to hear. Another thought is to use sub as stand for center channel. Often a single sub sounds great there in a square room Quote Link to comment Share on other sites More sharing options...
derrickdj1 Posted August 3, 2016 Share Posted August 3, 2016 You said the sub has always done this fluttery sound. Bad driver or bad amp. If this only occurred when push things near the limit, cuffing would be the culprit from the port. This is an older sub and has seen it's happy days. Time for a new sub. This is not room modes, phase or any other room related issue. Sorry to be the bearer of bad news. Quote Link to comment Share on other sites More sharing options...
hydro_pyro Posted August 4, 2016 Author Share Posted August 4, 2016 When I heard the sub doing this at close range, it turned out to be the out-of-phase modes from the second poorly-placed sub that was causing the flutter. I had another sub in my kitchen for my "B" speakers. Once I moved the living room sub to the near-field position behind the couch (which also turned out making the rest of the room sound better), I discovered that the bass now freely radiates into the kitchen where it didn't before. I was able to turn down the kitchen sub to almost nothing. And without the interaction between these two cranked-up poorly-placed subs, most of the flutter has been eliminated. The location of my main tower speakers is s horrible place for bass tones to originate. With my subs and mains crossed-over at 40 or 60 Hz, the flutter is still there because the towers are causing it. With it set at 80 Hz and fronts on "small", the sub (with better placement now) is handling all of the lower bass, and the whole room sounds better. Only a few certain bass notes have any noticeable flutter, due to having inconvenient wavelengths that don't agree with a certain dimension of the room's shape. Music, movies, everything sounds better now. 1 Quote Link to comment Share on other sites More sharing options...
mustang guy Posted August 4, 2016 Share Posted August 4, 2016 That's awesome news! Sometimes experimentation is the only way to solve these problems. If there were a quick fix I'm sure there would be a sticky in the HT or sub forum. Sub crawl does seem to be about the only thing that is common in problem solving. The rest is just guess work and experimentation. Quote Link to comment Share on other sites More sharing options...
RoboKlipsch Posted August 4, 2016 Share Posted August 4, 2016 Well done finding the issue. Try an even higher crossover at 100 u may like it even more if the fronts have issues down low Quote Link to comment Share on other sites More sharing options...
derrickdj1 Posted August 4, 2016 Share Posted August 4, 2016 Well surprised, surprised, I thought that sub had seen it's better days. It's great your well able to get things working to your satisfaction! Quote Link to comment Share on other sites More sharing options...
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