Originally Posted by bob_m10
What is the deal with the pro-kit, is that a device or and option that is unlocked on the AVR? Have you ever compared it to Yamaha's YAPO or any of the others? Bob
This is not a brief answer, but will try. Yes, I have used all the other types (set up a lot of AVR's for friends and family). I've used Yamaha' YAPO, Pioneer's MACC, Sony's Version and H & K's Version. Basically all of them use some form of Parametric EQ, which will have anywhere up to 32 bands. Also, there bass section is hardly corrected (it's the hardest part to correct) which is why some folks feel that Audyssey is 'lean' since they are used to large modes in the room (it's easy to have a +12db room mode in the bass). Audyssey does not use this technology.
Audyssey uses and equivalent (in XT32) of over 10,000 'bands' in the midrange/treble and the same 10K in the bass. To read more about it, read this:https://audyssey.zendesk.com/entries...zation-methods
It does a much better job of room correction IMO than all the others (except the higher levels of Trinnov - but they are very expensive, and both Trinnov and Audyssey seem to sound the same once optimized). Once optimized, if one does have a 'preference' for more bass, it can be turned up, but will still be nice and smooth. I also find Audyssey integrates the mains and subs better.
Now, with the on-board XT32 and mic, you can measure 8 positions. This will really fit 99% of most users. Some us us are anal about it and want to extract every bit we can - I'm one of them. The Pro-Kit is an extra purchase. There is a specific thread on this:http://www.avsforum.com/avs-vb/showthread.php?t=1346723
The Pro-Kit come with a professional calibrated mic, cables, mic amplifier, and necessary connections to connect to specific AVR's (which have to be Pro-Ready, not all are). You also connect a computer to the system for calibration (laptop or desktop) to use the computers processing power - much more powerful than in any AVR. What does it give you: more flexibility (you can tweak the curves a bit), change the settings in Dynamic EQ and Dynamic Volume, give better integration from Sat to Subs (even gives you the best choices in descending order of best XO but let's you choose), and just seems to give at better 'surround bubble'. It feels like it's all around you.
You may want to read the above thread and also the Audyssey thread to get more on it. Usually you have to hire a pro to come in and do it. But, if you're like me and others on this forum, I like to calibrate every time I make changes to the room since that does change the sound.