I am an early user of this technology. I am also a retired engineer. I have worked with WISA to resolve issues in the earliest units and the product has steadily improved. Many more features are planned and in development. Like many wireless devices, there is about a ½s delay when you first start a streaming source or switch streaming sources. The unit has to identify the format (Bitstream, Dolby Digital, Dolby Atmos, etc.) and apply the right decoder to the stream and synchronize the stream to all speakers. There is a hand shake that occurs with each speaker whose receiver contains a manufacturers table of information telling it what it wants in its stream of data. All of this takes time to process.
If the source is interrupted such as the Netflix stream pauses due to WiFI problems between the TV and the router, it takes about 1/2s after the stream resumes to get audio. Once a steady stream is established from the TV, I have not experienced a single speaker dropping out. I now have been testing since January of this year starting with the Platin Monaco and I purchased a SoundSend to use with Klipsch speakers when I returned the Platin Monaco system (I didn’t care for the speaker sound from the small speakers but the unit worked well).
I have worked with WISA through several upgrades in both the IOS app and the units firmware and seen steady improvements with new features. I have also tested the Klipsch RP-Hub1, the Enclave transmitter and the Axiim Q-UHD. All of them worked well with the latest firmware from each vendor but the SoundSend is the best supported with continual improvements, the only one supporting eARC and it is the lowest cost unit.
In fact, I have been so impressed with this technology that I decided to try and develop a stand-alone receiver to use with powered speakers and a Mono block amplifier with a built in receiver to use with passive high end speakers. I have built a prototype receiver and 3 different prototype amplifiers. The high end one is a 250W into 4 ohm mono block unit with a Hypex Ncore amplifier. I have included a few photos for your enjoyment. These are not yet ready for market as I have more testing to do and the final packaging is not complete. I also have a smaller 30W unit that can be velcroed to the back of the speaker.
I was inspired to build these because, like many of you, I did not want to be locked into a single speaker manufacturer and wanted to be able to pick the speakers I wanted in my system. There are no prices or available units for sale. My target is sometime in the next 2-3 months.
You can be sure, that if the technology wasn’t solid and the best available for audiophile quality, I would not have invested thousands of dollars of my retirement savings into this project.
Finally a few words about the wireless environment. Where you place the transmitter matters. It is a high frequency RF signal and as a result placing it behind a TV or any metal structures can attenuate the signal. If it detects that it has lost a connection to a speaker it will try and reconnect until it is successful. This is the only source of drop out anyone should ever encounter. Speakers must be within 30′ of the transmitter. While it may work with speakers in another room, drop outs would become likely when it has to pass the signal through walls. My furthest speaker in testing is 25′ from the transmitter. My transmitter is not in an ideal location (it is on the floor inside my shiplap covered fireplace) and I have not had a single drop out in 6 months. I hope this review helps you.
UPDATE: I have now had an opportunity to test Version 2.6 and it addresses some if not all of the complaints that have been posted. The delay to start audio when switching sources is now down in the 5-10msec range from 500-1000msec before. This is a big improvement. So far, I have not had any issues and I will continue to update this review as I have had more time to test it further.