Sweet Room

[alandbush]

Hi all the experts, I am first time uses REW and when I click on measure and started, it send a sweep sound to expert pro, and then draw graphics like this in 3 tests, the blue one is has subwoofer turned on with cross over set to 20Hz, and then the orange line is with subwoofer turned off.

I think there is something wrong here, how come the sub bass recorded so high? That means I can’t turn on my subwoofer.. actually without the subwoofer the main speaker’s bass is not good enough m. Did I do anything wrong in REW or I am looking at it in a wrong way? May be I should not turned on subwoofer during measurement?

Thanks for the help. By the way I use the UMIK-1

I am not an expert, especially with regard to subwoofers, but reviewing your measurements suggests that your crossover would be better placed at 80hz. This may allow the sub to 'fill' the 'hole' in the 40-80hz range as well as removing the main speaker output below 40hz. Of course, that all depends on the subs room placement and it's volume.

At least with REW, you can measure and see the effect that altering the crossover can have together with the effect of altering the volume of the sub.

Good luck.