I just heard from my best mate.

He bought one of the aforementioned TPA3116 mini amps after hearing mine in my system.

The amps he already owns are an EAR 861, Monarchy Audio SM-70 Pro and Creek Destiny 2. He finds the Destiny 2 superior to the EAR and SM-70 Pro when driving his Tannoys. However, he has declared the TPA3116 unit "embarrassingly good" and the equal of the Creek in his system. Like myself, he has now ordered a second one. They are that impressive!!

If you own moderately sensitive speakers you really deserve to hear what these little things can do and at around £25 including power supply, why not give it a go?