Questions about Sony Ht-Rt5

According to the manufacturer's specifications, the soundbar cannot be used without rear speakers.

Hello bersangi There are no wall brackets for the surround speakers in the set. However, the speakers have a hole at the back which is intended for direct wall mounting with a screw. --> http://www.phileweb.com/news/photo/d-av/373/37359/HT-RT5_speaker.jpg I mounted the speakers with the Vogels wall brackets. These are quite cheap and serve their purpose wonderfully. --> Vogels VLB 500B, Speaker Mount Black

There is no solution from Sony. The following speaker stand can be used universally Hama Speaker Stand - 1 Pair (Black, Stand)

According to my information, it is unfortunately already sold out and no longer available.

Compatible with any TV set as long as it has a JACK, Optical or HDMI output.

Yes.

For me, the surround system with soundbar and 2 additional speakers via WiFi works without delay.

But the operating instructions talk about a surround sound simulation for "2-channel sound sources"... maybe that helps a little...