Originally Posted by mgrobins
I have been looking through the thread to find the "dual sub" issue that is mentioned a few times at the end here and can't locate what is of concern. I'm about to purchase an AV8801 and use it in a 5.2 or 7.2 setup. One of the main selling points for me was the sub HT and XT32 options. Does the system properly calibrate 2 subs that are located different distances from the 1st listening position?
Yes it does a proper calibration, so there should be no concerns.
The dual sub bug is this: When you run a Pro calibration, you are given the option to save your measurements for future use. You can then re-load measurements, skip to the crossover settings page, and either adjust crossovers or launch the curve editor. this allows you to adjust the results of the calibration without re-running the measurements step (which is the most time-consuming part). Before the introduction of Sub-Eq HT and dual subs, you could also add additional measurement points to the original calibration. That is no longer possible, because if you add more measurements, Pro will not remember the sub distance settings from the original measurement set, resulting in wrong distance settings (and potentially a flawed calibration).
Audyssey has acknowledged this flaw, and attributes it to the limited processor resources the AVR manufacturers are willing to allocate to Audyssey. In other words, do not expect this bug to be fixed. However, adding additional measurement points is something that is done rarely, so there is no reason for this flaw to deter you from using the Pro kit effectively.