Hello. I just received emc8000 with calibration files. Next step is to calibrate the usb soundcard. I'm currently using my laptop running Windows 7. So i connect the loopback cable between the output and the input. I set the levels, but the soundcard is blinking red on the input. Could mean...

Well, I'm finally ready with all the equipment I need to do a proper round of room measurements -- almost! I bought a FBQ2496 and ECM8000, and this nifty external sound card from Native Instruments called the Audio Kontrol 1 (AK1). It has built-in phantom power, can do 24/192, and supports full...