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then I do the calibrate SPL under the settings, and find that for one channel, the spl is at 80dB, but then the other it is around 95. So, this is normal? I should take the reading there, and use the set target level as you said?
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No, you calibrate each speaker measurement to 75dB.
1. press the REW Check Levels routine button and ensure the output VU meter is at -12db. Then adjust the processor/preamp/receiver volume control so the actual SPL meter reads 75db at the listening position (stairs time). Then adjust REW input volume to be -12dB on the VU meter.
2. press the REW Calibrate SPL meter button and set it to 75dB to match the actual SPL meter which is at 75dB.
3. press the REW Set Target Level button to run that routine - it will return around 75dB.
4. Measure.............. (be sure End Frequency is set to 200Hz in hidden panel)
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I must've hiked those steps 30 times last night...
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Think of it like this - some people have to pay a fee at a gym to use the stair climber - not you.
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the HSU is in the middle on the front wall, the little sunfire is behind my seating in the middle of the back wall)
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Theory says this would be the worst placement and that they should be in the corners.
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One more thing on the HSU subwoofer (first graph) it looks like the level actually increases from 80-90hz, and doesn't really roll of until 100Hz?
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Yep, here's where an equalizer comes into play. The room is causing that, and it needs to be addressed.
BTW, the two subs are fighting each other - see the big dip? Adjust the phase of one to get rid of that - then be sure the mains still integrate with the phase change..... two subs are tough - especially different models.
brucek