Hi guys, this is my first time playing with the REW software. I must say, it's very interesting and quite useful if used correctly. Anyway, I have a huge peak (10+ dB) in my room around 38-40 Hz. I was wondering when you calibrate the system to 75 dB using the internal receiver's test tones, what frequencies does it play for the subwoofer? I'm wondering if the 40 Hz peak would affect my subwoofer calibration by using these test tones? If I tame that 40 Hz peak using my eQ.2, do I need to recalibrate my subwoofer?