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Phase align subs to mains
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<blockquote data-quote="Jay Barracato" data-source="post: 117071" data-attributes="member: 24"><p>Re: Phase align subs to mains</p><p></p><p></p><p></p><p>I was a late convert to measuring. Actually my FIRST real experience using SMAART was version 7. Prior to that I had occasionally seen it at other guys FOH but mostly ignored it.</p><p></p><p>I used the same arguments about being able to align subs by ear. Sure, for a two way system, and considering you have easily plus or minus 15 milliseconds of leeway, it really wasn't that hard to get something usable by Kentucky windage. An eyeball estimate, and some playback music to check, and all was good.</p><p></p><p>Of course all that goes out the door as you start to use more and more complex systems, or want to add attributes like steering.</p><p></p><p>When I first started using SMAART, if I felt a time crunch, the measurement system would be the last thing I would set up. And then I finally realized that was costing me time. </p><p></p><p>The Ah!Ha! moment, for me, came at a PAC show where I had burned up all my soundcheck time and still did not have a usable mix. I KNEW I was making changes at the console that weren't being reflected in the system. I knew that the mids were nonexistent, but I kept getting the "thats the way its always been" argument from the house tech. I finally set up the measurement system and showed him the rig wasn't producing anything from 100-3000 hz.</p><p></p><p>At that point (now about 1/2 hour from doors), they finally let me into the system processor where I found a three way crossover wired into a two way system. Basically the LF band went to the subs and the HF band went to the tops and the MF band went no where. There were audience members in the room as I wrote a quick 2 way crossover, and first heard some walkin music. We ended up doing a quick festival style line check and just going hot on the first song. It was still 10000 times better than anything we had in soundcheck.</p><p></p><p>So now the first thing I do is set up to get a baseline measurement. On my system or someone elses that tells me everything is good or there is a problem to be addressed. While some playback would do the same thing, the measurement gives me some solid clues as to what the problems might be, and if it is someone elses system, some evidence that there IS a problem that we should be trying to fix.</p><p></p><p>Often the trying to convince someone else is the real timewaster, and having the measurement helps shorten that process.</p></blockquote><p></p>
[QUOTE="Jay Barracato, post: 117071, member: 24"] Re: Phase align subs to mains I was a late convert to measuring. Actually my FIRST real experience using SMAART was version 7. Prior to that I had occasionally seen it at other guys FOH but mostly ignored it. I used the same arguments about being able to align subs by ear. Sure, for a two way system, and considering you have easily plus or minus 15 milliseconds of leeway, it really wasn't that hard to get something usable by Kentucky windage. An eyeball estimate, and some playback music to check, and all was good. Of course all that goes out the door as you start to use more and more complex systems, or want to add attributes like steering. When I first started using SMAART, if I felt a time crunch, the measurement system would be the last thing I would set up. And then I finally realized that was costing me time. The Ah!Ha! moment, for me, came at a PAC show where I had burned up all my soundcheck time and still did not have a usable mix. I KNEW I was making changes at the console that weren't being reflected in the system. I knew that the mids were nonexistent, but I kept getting the "thats the way its always been" argument from the house tech. I finally set up the measurement system and showed him the rig wasn't producing anything from 100-3000 hz. At that point (now about 1/2 hour from doors), they finally let me into the system processor where I found a three way crossover wired into a two way system. Basically the LF band went to the subs and the HF band went to the tops and the MF band went no where. There were audience members in the room as I wrote a quick 2 way crossover, and first heard some walkin music. We ended up doing a quick festival style line check and just going hot on the first song. It was still 10000 times better than anything we had in soundcheck. So now the first thing I do is set up to get a baseline measurement. On my system or someone elses that tells me everything is good or there is a problem to be addressed. While some playback would do the same thing, the measurement gives me some solid clues as to what the problems might be, and if it is someone elses system, some evidence that there IS a problem that we should be trying to fix. Often the trying to convince someone else is the real timewaster, and having the measurement helps shorten that process. [/QUOTE]
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