Review on BluDento True Hi-Fi Bluetooth v5.1 Music Receiver: Long Range Audio Adapter with Audiophile Burr Brown DAC & aptX for Streaming Audio to Home Stereo, A/V Receiver or Amplifier by Debbie Dixon

Works great, sounds great. I used it to add a subwoofer to a set of powered bookshelf speakers. I bought Edifier S2000 Pro bookshelf speakers. This set sounds great. But it has no subwoofer output. Also, you can't use speaker-level connections because this bookshelf speaker set uses a proprietary five-conductor interconnect cable with special connectors to connect two speakers together. (because it uses a two-way configuration with no passive crossovers in the speakers). All outputs on this Bluetooth adapter work simultaneously, which is great. I ran a Toslink optical cable from the BL-2 to the bookshelf speaker. He then extended the BL-2's red and white left and right RCA analogs to the subwoofer. My sub is HSU Research ULS 15 MK2. The whole setup works great together and sounds fantastic. There's even a coaxial digital output, which I don't use now. It should have a high quality DAC and it sounds like it. I didn't notice any difference in quality when switching between optical and analogue connections. Anyway sounds great.