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this explains much...
Some 2 plus years ago when the AP20 team at Datasat Digital Entertainment (the old DTS Cinema division) started the development cycle we spent a lot of time evaluating room optimization and correction technologies. Most were either too hard to use or simply not effective enough to merit their use. The exception to that was Dirac Live by Dirac Research. However at that point Dirac Live had not been used in commercial products other than automobiles. As result Dirac Research agreed to grow their product to support rooms as large as the biggest commercial Cinema Theaters. Since that time the AP20 and Dirac Live has been successfully applied to huge rooms containing thousands of seats all over the world. The Dirac Live algorithm in its current form is self scaling. It optimizes rooms the size a hotel suite (ie: our demo at the Flamingo during CES week) as well as it does a major commercial Cinema space.
The Dirac Live algorithm requires a lot of DSP horsepower to run, much more than other room correction products. The AP20 contains 6 'state of the art' 400 mHz DSPs, two of which are dedicated to running Dirac Live. Other room correction products share a DSP with Dolby & DTS decoders. I say this not to knock their products but to simply state that they cannot compare with Dirac Live as they simply do not have the DSP resources allocated to them.
The AP20 is available to purchase today. Street price is $6,500. More information can be found by Googling 'Datasat Digital Entertainment AP20' I invite you to contact me should you be interested in acquiring one.
The DL2 is my product since leaving the employ of DDE. It is an 8 channel device and is the same Dirac Live technology as is in the AP20 but put in a consumer package. The DL2 will be ready to ship in the next 60 days or so. Street price will be $2,300. That price includes all software needed to measure and configure the product. The supplied software from Dirac Research for both the AP20 and the DL2 assumes the user already has a measurement microphone and USB/ ASIO mic preamp to configure. If you don't have them these items can be acquired from a variety of sources. The setup process is pretty simple. You simply take measurements at and near your preferred listening positions using the supplied software and stimulus. Once you have collected several (usually 12 or more depending upon room size) you let the computer crunch away at the data using the patented Dirac Live algorithm. Once finished you simply push the results into the AP20 or DL2 processor. The AP20 uses a wireless connection and the DL2 USB. And that's it! Should you want to make a change the Dirac Live software includes a graphical editor that allows you to alter the resulting filters should you want to 'pull up the bass' or 'add a presence bump' to the center channel. You have complete control of what gets sent to the processor.
The DL2 really has very little in common with the now defunct Audyssey product other than the chassis being from the same OEM.
As we get closer to the release of the DL2 the website 'dl2.biz' will go live and much more information and support will be posted there for both the AP20, DL2 and follow on products that are now in development.
I hope this answers your questions. I will monitor this thread should anyone have something more specific that I can answer.