Crosswalk Signal Light,Pedestrian Traffic Light,Customized Dimming Function Signal Light,Led Crosswalk Signal Pedestrian Traffic Light Jiangsu Bosiwei Optoelectronics Group Co.,ltd , https://www.bswledled.com I am very grateful to the New Era Forum for giving us a place to communicate and learn. The placement and configuration of the dipole surround speakers is a collection that I have collected in this area, and I hope to help my friends. Also welcome enthusiasts to pass on more audio and video knowledge to us!
The dipole surround has a high space requirement for the rear sound field. If the seat is too close to the rear, the dipole surround effect will be greatly reduced. It is not as obvious as the single-stage surround directly to the ear effect. It is caused by the sound of the front and rear to create a sense of envelopment. This is very demanding on the room. If the same rear surround is also desired, the requirement for space is higher. Let's take a look at a layout image of the dipole surround: 
The THX certification is generally an inverted dipole surround, which is very suitable for the side ring. If the surround is connected, the two speakers must be adjusted, otherwise the sound will cancel each other out. Dipole [inverted] applies to the side ring], if you want to install the back, left and right off; Bipole [in phase] is more suitable for the back.
The room is large, it is recommended to use the dipole on the side, the unipolar on the rear ring, and the dipole on the reverse side.
The above information is for the discussion of 7.1 multi-channel situation, and then thank changzhou\HD300\zhaohui743\fire chariot and other netizens.