You’d need two separate items.
On transmitter for the tv; sending the audio through the AVR would complicate things for no reason, and introduce unnecessary latency.
And an optical equipped receiver for the Denon.
Both can be found quite cheaply.
As receiver for the Denon this has Apt-x and an optical out. I use one and it’s perfectly good gear.
Bluetooth Stereo Music Receiver HiFi Audio | eBay Neet® - Bluetooth Stereo Music Receiver HiFi Audio - Wolfson DAC - Wireless HiFi Audio streaming - Digital Toslink Optical/Analogue out - With NFC - aptX® - CSR®
Condition is Used. Dispatched with Royal Mail 2nd Class. www.ebay.co.uk
Or these from Nobsound. About as good as they get... (and HD).
Nobsound CSR8675 Bluetooth 5.0 to Optical Coaxial Digital Audio Receiver APTX HD | eBay Nobsound®——Douk Audio. Bluetooth 5.0 Version British CSR8675 Bluetooth module, support native 24BIT, support APTX-HD Coaxial and optical fiber output. British CSR8675 Bluetooth module, support native 24BIT, support APTX-HD. www.ebay.co.uk
for a transmitter for the tv, the tidiest way to do it is to have one that can be powered by one of the TVs usb inputs, but the one I had induced a bit of noise unless I used a separate power supply (I used my spare Apple usb charger)
These have a good reputation.
Anker Soundsync A3341 Bluetooth 2-in-1 Transmitter and Receiver, aptX aptX-HD TV 690003647410 | eBay Click here to see description. www.ebay.co.uk |