Super!!! Works perfectly. Very satisfied, keep it up!

Not knowing the characteristics of your amp, it's difficult for me to answer. But if it has a jack, you could plug it in and then transmit the signal via Bluetooth to two Bluetooth speakers, for example. On the other hand, if your amp has a Bluetooth function, you could perhaps do without the jack. I use this device to connect two headphones to my TV. It seems to work fine, but as my tu is old, I get interference between wifi and Bluetooth.

As I do not own a guitar amplifier, I am unfortunately unable to answer this question.