Just added a new gadget for my Shack. the Behringer Micro Mix, an amplified audio mixer to optimize audio output management.
With this 4 ways mixer I can connect up to 4 radios and use a single external speaker, can mix volumes, and with an Y cable I’ve also connected my new Yamaha CM500 headsets.
Mixer output is Mono so is perfect for ham radio usage.
Got used for 20 euros.