Even with Audyssey Pro, personally, I would still do the subwoofer crawl for finding the inital placement of the subwoofer in the room. Audyssey is pretty amazing, but digital EQ is not a panacea for bass problems. For example, Audyssey cannot do anything for you if you are sitting in a bass null. No amount of boosting the signal will fix such a problem and it can potentially be dangerous for the subwoofer's amplifier if EQ tries to boost the signal to compensate for a bass null.
So I recommend starting by crawling for bass no matter what. If you can avoid major peaks and nulls at your primary seat with good placement, then it makes things that much easier in the fine tuning with digital EQ and such
If you have any DVD or Blu-ray that is a THX disc (disney movies and, of course, Star Wars are likely candidates), then you can use the THX Optimizer. The last chapter in the Audio section is a sweep that goes from 200Hz down to 20Hz with a continuous sweep. Put that chapter on repeat and it makes the subwoofer crawl pretty easy!
If you really want to pick out certain "trouble" frequencies, then you can use the RealTraps Test Tone CD found here:
http://www.realtraps.com/test-cd.htm
That "CD" (it's just a downloadable file really
) plays 10-second-long sine waves in 1Hz increments from 10Hz all the way up to 300Hz. Given that each 1Hz increment tone is 10 seconds long, playing this CD isn't really any good for the subwoofer crawl. But what you CAN do with it during the subwoofer crawl is really pin point any particular frequency or range of frequencies where you think that you might have a problem based on the THX Optimizer sweep. So, for example, if you hear a bit of a peak or a dip about half way through the THX Optimizer sweep, you can play the tones from the RealTraps CD in the 90-110Hz range and really zero in on your "problem" frequencies.
Also, once you think you've found a good spot for your subwoofer and you're back sitting in your primary seat, you can go through the whole RealTraps CD and really graph out your frequency response! If you're using manual EQ (like a Behringer Feedback Destroyer), this is invaluable. And if you just want to see what Audyssey does, you can go through the CD with Audyssey on and with it off to compare.
