dddpsd Posted January 29, 2011 Share Posted January 29, 2011 A while ago I asked the question "how to place these rear-ported speakers?" The general answers were to experiment. I spent a LOT of time googling the web trying to find a starting point. It is amazing what you can stumble onto just following threads. Here is a digest of what I learned in case it helps anyone else. The most interesing stuff was from way back when horns were first being used in Hi-Fi. Horn speakers are a different dipole animal than coned. Yeh, I am a genius... Actually the dispersion pattern is different. It turns out that the simple owner's manual diagraming toe-in is wrong. I read a lot of threads stating that this type of speaker is very sensitive to placement. In my room that is the understatement of my Hi-Fi career. The best starting point that I found in my searching was 2 feet from the back and side walls. The most important information was to NOT toe them in. My room is 15 ft wide and 24 long. All hard bookcased walls like a library, high ceiling and hardwood floor with a thin rug covering the central 2/3. They sounded a lot better than close to the back wall and corners where had them trying to get more bass and toed-in. The old way was thin and no depth. Then - I pulled them out into the room and away from the sides. Still facing straight forward with no toe-in at all. They are 8 feet apart and 12 feet to the chair The speakers have now sonically disappeared. I hope this is helpful to someone Dennis Quote Link to comment Share on other sites More sharing options...
SWL Posted January 29, 2011 Share Posted January 29, 2011 The speakers have now sonically disappeared. If a tree falls in the forest and no one is around.....does it make any sound? [] ...Just messin' with ya. [] Quote Link to comment Share on other sites More sharing options...
Fish Posted January 29, 2011 Share Posted January 29, 2011 As long as your baffles are no more than about 3ft from the rear wall, after that bass is negatively effected. Quote Link to comment Share on other sites More sharing options...
moray james Posted January 29, 2011 Share Posted January 29, 2011 Not that much of a project to move your reflex vents to the front of the cabinet. You can take the opportunity to fine tune the vent loading (adjust lengths). Might be time well spent. Best regards Moray James. Quote Link to comment Share on other sites More sharing options...
dddpsd Posted January 29, 2011 Author Share Posted January 29, 2011 The plot thickens... I have been suspicious of the health of my Denon DRA 1035R receiverever since getting the KL-20s . At low voume one channel is weak. Oh well, just crank it up right? All of this moving the cabinets around to get some bass and even putting in a small passive sub just seemed wrong. So, I just picked up a Nakamichi TA-2A for cheap and hooked it up without the sub. Now these KLF-20 have the mids and sound stage with all the bass I need. That's with the tone control on direct. Time to sell the Denon... Quote Link to comment Share on other sites More sharing options...
rockhound Posted January 29, 2011 Share Posted January 29, 2011 The TA-2A is a great receiver, I never should have sold the one I had. Quote Link to comment Share on other sites More sharing options...
dddpsd Posted January 30, 2011 Author Share Posted January 30, 2011 Thanks. I am enjoying this one more and more. Quote Link to comment Share on other sites More sharing options...
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