High Efficiency Speaker Asylum

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RE: Giant Horn Speakers and Time Alignment ....

Posted by Duomike on March 10, 2012 at 17:31:13:
Time alignment is VERY important IMO. I'm using AG Omega Duos. About a year ago I got wooden blocks built for the tweeter cylinders which I have put on the bass speaker allowing me the move the tweeters back in small increments. I ended up moving the tweeter back around 20 cm. Strangely 0,5 cm matters and is easily audible when you get close to the right point! A friend who owns the same speaker recently came over. He listened first with the tweeter aligned, then I hit pause and moved the tweeters back to it's original position and hit play. After a few seconds he said "oh shit". The difference is quite dramatic!
Using digital delay for the horns to align with my corner subs crossed over at 200 hz. Interestingly even at 200 hz a few cm matters and can easily be heard!