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Discussion Starter · #1 ·
I am trying to calibrate 2 UXL18 18" subwoofers in my HT using REW Wizard. I have the Checkmate CM-140 and I am trying to individually test each subwoofer to match 75db then adjust their gain until they are both level matched. My problem is this:
1. What should I set the SPL meter to?
2. I got the C weighted part and the Fast, but what do I set for Levels and Min/Max?
3. Also is it normal to see a 5-6 db swing in my HT room. My amp is loud even after replacing the fans with Gentle Typhoon AP-45 2150 RPM. Could that be creating the problem?

Any help would be greatly appreciated. :nerd2:
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