This is Dolby Pro Logic!

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

[Recording time]
Color Stereo 27 minutes
[List of contents]
Contents : Balance check including center speaker / Role of center speaker / Challenge to heavy low sound! (Limit of low sound of your AV equipment!) / Utilization of super woofer / Optimum position of surround speaker / Confirmation of delay time / Introduction of Dolby Research Institute (San Francisco) ~ World's best preview room ~ Dr. Dolby appears