In its most typical application, the nanoAVR connects between two HDMI sources (Blu-ray or DVD player, media streamer, gaming console) and an A/V receiver. From tuning a subwoofer to time-aligning and equalizing a full 7.1 system, there is no shortage of applications for this little box once combined with a UMIK-1 and our long time partner Room EQ Wizard (REW).