I have a problem with MultEQ Pro and an Onkyo PR-SC5509.
I use the latest version of MultEQ Pro (3.5.716.565) which supports the 5509.
I updated the firmware on my 5509 with the latest version that supports the Audyssey Pro (1071-0600-0210-5103 -> http://www.eu.onkyo.com/en/articles/firmware-update -dr-sc5509-16-03-2012-59859.html)
Before updating Onkyo, when I selected 5509 in the list of MultEQ Pro, I had an error window saying the firmware was not supported.
Since the update from Onkyo, I no longer have this window in MultEQ but it does nothing more. It redisplay the select list and not the window for entering the license.
I'm sure MultEQ Pro discusses well with the amp because the network traffic shows the dialog in ISCP protocol.
Is this a bug in MultEQ Pro software ?
Does the purchase of license for Onkyo 5509 will soon be possible? (currently, the 5508 is referenced but not the 5509)