Yesterday, Jeff Meier (Accucal) calibrated my 5.2 HT audio system - the results are stunning. The improvement over EmoQ2 and Flat are huge - such is the power of the parametric equalization in the hands of a pro. His summary is attached: the first chart is with EmoQ engaged, the second is his manual calibration. Per Jeff, for lower-end or mid-range systems, the benefits will typically be substantial. Those of you with Aerial 20Ts and great acoustics can probably do without but for the rest of us . . . . He ranks it as equalling or even surpassing the Classe 800, mainly because the q per channel has greater range . Using 5 channel white noise, the end product was a full and fluid waterfall/stream sound, wherea EmoQ sounded hollow (too much highs and lows) and flat was better but nowhere near as full/rich.
A few quick notes. EmoQ's main defects are a too low center (which we all knew) and a too hot sub. Changing the crossover slope to 12 from 24 allowed a lower crossover for my small Atlantic mains and center. And the peak between 20 and 30 hz is by design - to give more oomph at low listening volumes (otherwise it would have been flat).
One defect found in his thorough testing of the decoding - DTS-HD MA 7.1 track rear sounds are not folded into a 5.1 system (True HD and pcm 7.1 are fine). The easy workaround is to have the player decode and send as pcm on those fairly rare instances where you have a DTS-HD 7.1 track.
We listened to a variety of music and film soundtracks to test it - they all sounded great. I would strongly encourage anyone who wants to tap the potential of this gem to get Jeff or another pro to calibrate the parametric equalization for your system.
AccuCal Calibration Report.pdf 543k .pdf file