Yup.. tannoys ARE merciless on low quality upstream gear.
Also respond marvelously to even the tiniest quality improvements.. A double edged sword.
I tried an Ta2020 'amp 6' for a short while.. before it died it proved a decent gizmo, for a wee chip device.
But tripath chips are Extinct these days
LM3886 chip amp device can be actually a pleasingly good amp.
IF of first world design and parts
MY 3116 chip amp (bought because of much internet babble praise) proved Horrid to my ears.
Not surprised you are displeased with it
Screechy with ugly speaker threatening extraneous on off noises
Another Chi-Fi Ebay item..Immediately for the trashbin.