BIC America WTR-Sys Wireless Transmitter/Receiver Kit for Hookup of Wireless Subwoofers and Wireless Powered Speakers, 8.30in. x 8.30in. x 2.20in.

This is a superb product. I have a music studio that needs mic signals sent wirelessly to a recorder, and then that recorder's output sent to an amplifier/speaker system. There are other, cheaper solutions that "automatically pair", but try having two separate links going like this at the same time; they just start cross-pairing. This product is excellent; they have DIP switches on the exterior of the case to set the channel (0-3) on both the transmitter and receiver. When you power them up, they immediately latch on and start working. Audio quality is high. The transmitter/receiver kits come with removable antennae (so you can connect an extender somewhere else if needed) and pre-cut velcro strips to quickly mount them on out-of-the-way places. A LOT of cords with stereo RCA to various other formats are included. The system comes in a very well-thought-out package that separates all of the gear that you get. It's well worth getting these units to select the channel; you'll be able to be in control if your neighbor starts using some channel randomly, and also, it's pretty likely you will want another one for another radio link, and you will want them to not cross-link. The competition doesn't handle this, and this product does exactly what is needed.

I cannot believe that I'm the first person to buy or review this item, but here goes.I bought this to eliminate the hard-wire running from my Denon receiver to my BIC F12 sub. Note: you don't need a BIC to use this- it will work on anything with RCA jacks. I bought this (instead of the other "more reviewed" options) because I trust BIC and have had a great experience with them to date (I've had my F12 for years, and recently added the Acoustech PL-200 to my basement).Packaging: BIC clearly took notes from Apple. The product is packaged in very sturdy, very well suspended cardboard. Everything is very clearly labeled. If I had ONE complaint it would be that the top of the box fits too tightly...it was a chore getting it off.Accessories: BIC gives you every cable that you need to hook this up: a RCA "Y" cable (brings the single RCA subwoofer out on your receiver to dual RCA's) for both sides and a 3.5mm/RCA pair for both sides. Also provided are enough adhesive velcro strips to suspend a VW Beetle, intended so you can hang it anywhere that works for you (I placed mine on the back of my subwoofer, out of sight).Setup: Stupid easy. Plugged it in, made sure they were both on the same channel, powered up. Both sides can run off USB power, which was nice: The transmitter is plugged into my Denon receiver for power. One less wall wort!Functionality: My sub is about 10 feet away from my receiver. There is zero lag (according to the Audyssey calibration on my Denon) introduced by adding this to the mix. Bass is clear and solid before. Auto On/Off on my sub functions properly. I've got my house covered by enterprise class wifi, and although the more reviewed brands had issues with wifi, I have not experienced any issues with the BIC.Summary: Don't hesitate to buy this.

There are several competing Bluetooth 5.0 AptX transmitter/receiver systems in the market at similar prices that claim low latency. But nearly all of the competing products simply don't have sufficiently low latency if you want to use them with subwoofers are signal sources for wireless projection systems. Imagine a delay in bass or a delay in sound when watching dialogue in a movie.BIC's WTR-Sys really delivers in this respect. There is no noticeable time lag/sync issues at all. I simply connected one of the transmitter's RCA inputs to the subwoofer output of my receiver and the corresponding RCA output of the receiver unit to my subwoofer and left the channel switches on both units at their default channel.If there is one downside, it would be that if you leave the transmitter/receiver systems off for an extended period of time, the transmitter tends to go into a standby mode for several seconds at a time and stop transmitting. You can see this happen when its blue LED indicator turns off and flashes several times. The next time you feed a signal to it, it would turn on but it occasionally sends a signal to the receiver even when there is no signal. The result is that my subwoofer makes faint noises that sound similar to someone pully a cork from a bottle.On one occasion when the the transmitter was fed a signal after an extended period of not being used, the signal received by the receiver would not be complete, resulting in a somewhat distorted bass signal at a low volume. About a couple of minutes later, it would work as it should.In an nutshell, it works very well with the aforementioned quirks. If you can accept that or simply turn both units off when you don't use them, then the BIC transmitter/receiver system could be considered well-nigh perfect. Hence, my one-star deduction.